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base: twin:ag/libripgrep-freeze-1
Branches Tags
twin:master twin:ag/rollup twin:ag/fix-ci twin:ag/index twin:ag/fix-multiline-replace-duplicate twin:ag/fix-cve-2021-3013 twin:ag/moarci twin:ag/ghactions twin:ag/snafu twin:ag/disable-bom-sniff twin:ag/partial-bstr-migration twin:ag/bstr-migration twin:ag/prepare-0.10.0 twin:ag/libripgrep-freeze-2 twin:ag/libripgrep-freeze-1 twin:ag/changelog
twin:globset-0.4.16 twin:14.1.1 twin:14.1.0 twin:ignore-0.4.22 twin:14.0.3 twin:14.0.2 twin:grep-0.3.1 twin:grep-printer-0.2.1 twin:grep-searcher-0.1.13 twin:14.0.1 twin:grep-0.3.0 twin:grep-printer-0.2.0 twin:14.0.0 twin:grep-0.2.13 twin:grep-searcher-0.1.12 twin:grep-pcre2-0.1.7 twin:grep-regex-0.1.12 twin:grep-matcher-0.1.7 twin:grep-cli-0.1.10 twin:ignore-0.4.21 twin:globset-0.4.14 twin:globset-0.4.13 twin:globset-0.4.12 twin:grep-cli-0.1.9 twin:globset-0.4.11 twin:grep-cli-0.1.8 twin:grep-0.2.12 twin:ignore-0.4.20 twin:grep-0.2.11 twin:grep-printer-0.1.7 twin:grep-searcher-0.1.11 twin:grep-pcre2-0.1.6 twin:grep-regex-0.1.11 twin:grep-matcher-0.1.6 twin:grep-cli-0.1.7 twin:ignore-0.4.19 twin:globset-0.4.10 twin:grep-0.2.10 twin:grep-searcher-0.1.10 twin:grep-0.2.9 twin:grep-searcher-0.1.9 twin:grep-regex-0.1.10 twin:globset-0.4.9 twin:globset-0.4.8 twin:13.0.0 twin:grep-0.2.8 twin:grep-printer-0.1.6 twin:grep-searcher-0.1.8 twin:grep-pcre2-0.1.5 twin:grep-regex-0.1.9 twin:grep-matcher-0.1.5 twin:grep-cli-0.1.6 twin:ignore-0.4.18 twin:globset-0.4.7 twin:ignore-0.4.17 twin:globset-0.4.6 twin:12.1.1 twin:grep-0.2.7 twin:grep-cli-0.1.5 twin:ignore-0.4.16 twin:12.1.0 twin:grep-0.2.6 twin:grep-printer-0.1.5 twin:grep-regex-0.1.8 twin:ignore-0.4.15 twin:12.0.1 twin:ignore-0.4.14 twin:ignore-0.4.13 twin:grep-regex-0.1.7 twin:12.0.0 twin:grep-searcher-0.1.7 twin:grep-regex-0.1.6 twin:grep-printer-0.1.4 twin:grep-pcre2-0.1.4 twin:grep-matcher-0.1.4 twin:ignore-0.4.12 twin:grep-0.2.5 twin:globset-0.4.5 twin:grep-cli-0.1.4 twin:ignore-0.4.11 twin:grep-regex-0.1.5 twin:grep-searcher-0.1.6 twin:ignore-0.4.10 twin:11.0.2 twin:grep-matcher-0.1.3 twin:grep-regex-0.1.4 twin:ignore-0.4.9 twin:ignore-0.4.8 twin:grep-searcher-0.1.5 twin:grep-printer-0.1.3 twin:grep-cli-0.1.3 twin:globset-0.4.4 twin:11.0.1 twin:11.0.0 twin:grep-0.2.4 twin:grep-cli-0.1.2 twin:grep-printer-0.1.2 twin:grep-searcher-0.1.4 twin:grep-regex-0.1.3 twin:grep-pcre2-0.1.3 twin:grep-matcher-0.1.2 twin:ignore-0.4.7 twin:globset-0.4.3 twin:grep-regex-0.1.2 twin:grep-searcher-0.1.3 twin:grep-searcher-0.1.2 twin:ignore-0.4.6 twin:ignore-0.4.5 twin:grep-0.2.3 twin:grep-pcre2-0.1.2 twin:0.10.0 twin:grep-searcher-0.1.1 twin:globset-0.4.2 twin:grep-pcre2-0.1.1 twin:grep-0.2.2 twin:grep-printer-0.1.1 twin:ignore-0.4.4 twin:grep-regex-0.1.1 twin:grep-matcher-0.1.1 twin:grep-cli-0.1.1 twin:grep-0.2.1 twin:grep-cli-0.1.0 twin:grep-0.2.0 twin:grep-search-0.1.0 twin:grep-matcher-0.1.0 twin:grep-printer-0.1.0 twin:grep-pcre2-0.1.0 twin:grep-regex-0.1.0 twin:0.9.0 twin:grep-0.1.9 twin:ignore-0.4.3 twin:globset-0.4.1 twin:ignore-0.4.2 twin:globset-0.4.0 twin:termcolor-0.3.6 twin:0.8.1 twin:termcolor-0.3.5 twin:ignore-0.4.1 twin:0.8.0 twin:ignore-0.4.0 twin:globset-0.3.0 twin:termcolor-0.3.4 twin:wincolor-0.1.6 twin:grep-0.1.8 twin:wincolor-0.1.5 twin:0.7.1 twin:ignore-0.3.1 twin:ignore-0.3.0 twin:grep-0.1.7 twin:globset-0.2.1 twin:0.7.0 twin:termcolor-0.3.3 twin:0.6.0 twin:ignore-0.2.2 twin:ignore-0.2.1 twin:wincolor-0.1.4 twin:0.5.2 twin:ignore-0.1.9 twin:0.5.1 twin:termcolor-0.3.2 twin:0.5.0 twin:grep-0.1.6 twin:ignore-0.1.8 twin:globset-0.1.4 twin:termcolor-0.3.1 twin:wincolor-0.1.3 twin:termcolor-0.3.0 twin:wincolor-0.1.2 twin:0.4.0 twin:0.3.2 twin:ignore-0.1.6 twin:0.3.1 twin:termcolor-0.1.1 twin:0.3.0 twin:termcolor-0.1.0 twin:wincolor-0.1.0 twin:0.2.9 twin:ignore-0.1.5 twin:0.2.8 twin:0.2.7 twin:ignore-0.1.4 twin:grep-0.1.4 twin:globset-0.1.2 twin:0.2.6 twin:ignore-0.1.3 twin:ignore-0.1.2 twin:0.2.5 twin:0.2.4 twin:ignore-0.1.1 twin:ignore-0.1.0 twin:globset-0.1.1 twin:0.2.3 twin:0.2.2 twin:globset-0.1.0 twin:0.2.1 twin:0.2.0 twin:0.1.18 twin:0.1.17 twin:0.1.16 twin:0.1.15 twin:0.1.14 twin:0.1.13 twin:0.1.12 twin:0.1.11 twin:0.1.10 twin:0.1.9 twin:0.1.8 twin:0.1.7 twin:0.1.6 twin:0.1.5 twin:0.1.4 twin:0.1.3 twin:0.1.2 twin:0.1.1 twin:0.1.0 twin:0.0.19 twin:0.0.18 twin:0.0.17 twin:0.0.16 twin:0.0.15 twin:0.0.14 twin:0.0.13 twin:0.0.12 twin:0.0.11 twin:0.0.10 twin:0.0.9 twin:0.0.8 twin:0.0.7 twin:0.0.6 twin:0.0.5 twin:0.0.4 twin:0.0.3 twin:0.0.2 twin:0.0.1
..
compare: twin:ag/moarci
Branches Tags
twin:ag/rollup twin:master twin:ag/fix-ci twin:ag/index twin:ag/fix-multiline-replace-duplicate twin:ag/fix-cve-2021-3013 twin:ag/moarci twin:ag/ghactions twin:ag/snafu twin:ag/disable-bom-sniff twin:ag/partial-bstr-migration twin:ag/bstr-migration twin:ag/prepare-0.10.0 twin:ag/libripgrep-freeze-2 twin:ag/libripgrep-freeze-1 twin:ag/changelog
twin:globset-0.4.16 twin:14.1.1 twin:14.1.0 twin:ignore-0.4.22 twin:14.0.3 twin:14.0.2 twin:grep-0.3.1 twin:grep-printer-0.2.1 twin:grep-searcher-0.1.13 twin:14.0.1 twin:grep-0.3.0 twin:grep-printer-0.2.0 twin:14.0.0 twin:grep-0.2.13 twin:grep-searcher-0.1.12 twin:grep-pcre2-0.1.7 twin:grep-regex-0.1.12 twin:grep-matcher-0.1.7 twin:grep-cli-0.1.10 twin:ignore-0.4.21 twin:globset-0.4.14 twin:globset-0.4.13 twin:globset-0.4.12 twin:grep-cli-0.1.9 twin:globset-0.4.11 twin:grep-cli-0.1.8 twin:grep-0.2.12 twin:ignore-0.4.20 twin:grep-0.2.11 twin:grep-printer-0.1.7 twin:grep-searcher-0.1.11 twin:grep-pcre2-0.1.6 twin:grep-regex-0.1.11 twin:grep-matcher-0.1.6 twin:grep-cli-0.1.7 twin:ignore-0.4.19 twin:globset-0.4.10 twin:grep-0.2.10 twin:grep-searcher-0.1.10 twin:grep-0.2.9 twin:grep-searcher-0.1.9 twin:grep-regex-0.1.10 twin:globset-0.4.9 twin:globset-0.4.8 twin:13.0.0 twin:grep-0.2.8 twin:grep-printer-0.1.6 twin:grep-searcher-0.1.8 twin:grep-pcre2-0.1.5 twin:grep-regex-0.1.9 twin:grep-matcher-0.1.5 twin:grep-cli-0.1.6 twin:ignore-0.4.18 twin:globset-0.4.7 twin:ignore-0.4.17 twin:globset-0.4.6 twin:12.1.1 twin:grep-0.2.7 twin:grep-cli-0.1.5 twin:ignore-0.4.16 twin:12.1.0 twin:grep-0.2.6 twin:grep-printer-0.1.5 twin:grep-regex-0.1.8 twin:ignore-0.4.15 twin:12.0.1 twin:ignore-0.4.14 twin:ignore-0.4.13 twin:grep-regex-0.1.7 twin:12.0.0 twin:grep-searcher-0.1.7 twin:grep-regex-0.1.6 twin:grep-printer-0.1.4 twin:grep-pcre2-0.1.4 twin:grep-matcher-0.1.4 twin:ignore-0.4.12 twin:grep-0.2.5 twin:globset-0.4.5 twin:grep-cli-0.1.4 twin:ignore-0.4.11 twin:grep-regex-0.1.5 twin:grep-searcher-0.1.6 twin:ignore-0.4.10 twin:11.0.2 twin:grep-matcher-0.1.3 twin:grep-regex-0.1.4 twin:ignore-0.4.9 twin:ignore-0.4.8 twin:grep-searcher-0.1.5 twin:grep-printer-0.1.3 twin:grep-cli-0.1.3 twin:globset-0.4.4 twin:11.0.1 twin:11.0.0 twin:grep-0.2.4 twin:grep-cli-0.1.2 twin:grep-printer-0.1.2 twin:grep-searcher-0.1.4 twin:grep-regex-0.1.3 twin:grep-pcre2-0.1.3 twin:grep-matcher-0.1.2 twin:ignore-0.4.7 twin:globset-0.4.3 twin:grep-regex-0.1.2 twin:grep-searcher-0.1.3 twin:grep-searcher-0.1.2 twin:ignore-0.4.6 twin:ignore-0.4.5 twin:grep-0.2.3 twin:grep-pcre2-0.1.2 twin:0.10.0 twin:grep-searcher-0.1.1 twin:globset-0.4.2 twin:grep-pcre2-0.1.1 twin:grep-0.2.2 twin:grep-printer-0.1.1 twin:ignore-0.4.4 twin:grep-regex-0.1.1 twin:grep-matcher-0.1.1 twin:grep-cli-0.1.1 twin:grep-0.2.1 twin:grep-cli-0.1.0 twin:grep-0.2.0 twin:grep-search-0.1.0 twin:grep-matcher-0.1.0 twin:grep-printer-0.1.0 twin:grep-pcre2-0.1.0 twin:grep-regex-0.1.0 twin:0.9.0 twin:grep-0.1.9 twin:ignore-0.4.3 twin:globset-0.4.1 twin:ignore-0.4.2 twin:globset-0.4.0 twin:termcolor-0.3.6 twin:0.8.1 twin:termcolor-0.3.5 twin:ignore-0.4.1 twin:0.8.0 twin:ignore-0.4.0 twin:globset-0.3.0 twin:termcolor-0.3.4 twin:wincolor-0.1.6 twin:grep-0.1.8 twin:wincolor-0.1.5 twin:0.7.1 twin:ignore-0.3.1 twin:ignore-0.3.0 twin:grep-0.1.7 twin:globset-0.2.1 twin:0.7.0 twin:termcolor-0.3.3 twin:0.6.0 twin:ignore-0.2.2 twin:ignore-0.2.1 twin:wincolor-0.1.4 twin:0.5.2 twin:ignore-0.1.9 twin:0.5.1 twin:termcolor-0.3.2 twin:0.5.0 twin:grep-0.1.6 twin:ignore-0.1.8 twin:globset-0.1.4 twin:termcolor-0.3.1 twin:wincolor-0.1.3 twin:termcolor-0.3.0 twin:wincolor-0.1.2 twin:0.4.0 twin:0.3.2 twin:ignore-0.1.6 twin:0.3.1 twin:termcolor-0.1.1 twin:0.3.0 twin:termcolor-0.1.0 twin:wincolor-0.1.0 twin:0.2.9 twin:ignore-0.1.5 twin:0.2.8 twin:0.2.7 twin:ignore-0.1.4 twin:grep-0.1.4 twin:globset-0.1.2 twin:0.2.6 twin:ignore-0.1.3 twin:ignore-0.1.2 twin:0.2.5 twin:0.2.4 twin:ignore-0.1.1 twin:ignore-0.1.0 twin:globset-0.1.1 twin:0.2.3 twin:0.2.2 twin:globset-0.1.0 twin:0.2.1 twin:0.2.0 twin:0.1.18 twin:0.1.17 twin:0.1.16 twin:0.1.15 twin:0.1.14 twin:0.1.13 twin:0.1.12 twin:0.1.11 twin:0.1.10 twin:0.1.9 twin:0.1.8 twin:0.1.7 twin:0.1.6 twin:0.1.5 twin:0.1.4 twin:0.1.3 twin:0.1.2 twin:0.1.1 twin:0.1.0 twin:0.0.19 twin:0.0.18 twin:0.0.17 twin:0.0.16 twin:0.0.15 twin:0.0.14 twin:0.0.13 twin:0.0.12 twin:0.0.11 twin:0.0.10 twin:0.0.9 twin:0.0.8 twin:0.0.7 twin:0.0.6 twin:0.0.5 twin:0.0.4 twin:0.0.3 twin:0.0.2 twin:0.0.1

289 Commits
ag/libripg ... ag/moarci

Author SHA1 Message Date
Andrew Gallant
3853608eb6 ci: complete transition to GitHub Actions 
test
 2019-09-10 12:08:32 -04:00
Andrew Gallant
4858267f3b ci: initial github actions config 2019-08-31 09:24:44 -04:00
Andrew Gallant
5011dba2fd ignore: remove unused parameter 2019-08-28 20:21:34 -04:00
Andrew Gallant
e14f9195e5 deps: update everything 2019-08-28 20:18:47 -04:00
Andrew Gallant
ef0e7af56a deps: update bstr to 0.2.7 
The new bstr release contains a small performance bug fix where some
trivial methods weren't being inlined.
 2019-08-11 10:41:05 -04:00
Todd Walton
b266818aa5 doc: use XDG_CONFIG_HOME in comments 
XDG_CONFIG_DIR does not actually exist.

PR #1347
 2019-08-09 13:37:37 -04:00
LawAbidingCactus
81415ae52d doc: update to reflect glob matching behavior change 
Specifically, paths contains a `/` are not allowed to match any
other slash in the path, even as a prefix. So `!.git` is the correct
incantation for ignoring a `.git` directory that occurs anywhere 
in the path.
 2019-08-07 13:47:18 -04:00
Andrew Gallant
5c4584aa7c grep-regex-0.1.5 2019-08-06 09:51:13 -04:00
Andrew Gallant
0972c6e7c7 grep-searcher-0.1.6 2019-08-06 09:50:52 -04:00
Andrew Gallant
0a372bf2e4 deps: update ignore 2019-08-06 09:50:35 -04:00
Andrew Gallant
345124a7fa ignore-0.4.10 2019-08-06 09:47:45 -04:00
Andrew Gallant
31807f805a deps: drop tempfile 
We were only using it to create temporary directories for `ignore`
tests, but it pulls in a bunch of dependencies and we don't really need
randomness. So just use our own simple wrapper instead.
 2019-08-06 09:46:05 -04:00
Andrew Gallant
4de227fd9a deps: update everything 
Mostly this just updates regex and its assorted dependencies. This does
drop utf8-ranges and ucd-util, in accordance with changes to
regex-syntax and regex.
 2019-08-05 13:50:55 -04:00
jimbo1qaz
d7ce274722 readme: Debian Buster is stable now 
PR #1338
 2019-08-04 08:06:10 -04:00
Andrew Gallant
5b10328f41 changelog: update with bug fix 2019-08-02 07:37:27 -04:00
Andrew Gallant
813c676eca searcher: fix roll buffer bug 
This commit fixes a subtle bug in how the line buffer was rolling its
contents. Specifically, when ripgrep searches without memory maps,
it uses a "roll" buffer for incremental line oriented search without
needing to read the entire file into memory at once. The roll buffer
works by reading a chunk of bytes from the file into memory, and then
searching everything in that buffer up to the last `\n` byte. The bytes
*after* the last `\n` byte are preserved, since they likely correspond
to *part* of the next line. Once ripgrep is done searching the buffer,
it "rolls" the buffer such that the start of the next line is at the
beginning of the buffer, and then ripgrep reads more data into the
buffer starting at the (possibly) partial end of that line.

The implication of this strategy, necessarily so, is that a buffer must
be big enough to fit a single line in memory. This is because the regex
engine needs a contiguous block of memory to search, so there is no way
to search anything smaller than a single line. So if a file contains a
single line with 7.5 million bytes, then the buffer will grow to be at
least that size. (Many files have super long lines like this, but they
tend to be *binary* files, which ripgrep will detect and stop searching
unless the user forces it with the `-a/--text` flag. So in practice,
they aren't usually a problem. However, in this case, #1335 found a case
where a plain text file had a line with 7.5 million bytes.)

Now, for performance reasons, ripgrep reuses these buffers across its
search. Typically, it will create `N` of these line buffers when it
starts (where `N` is the number of threads it is using), and then reuse
them without creating any new ones as it searches through files.

This means that if you search a file with a very long line, that buffer
will expand to be big enough to store that line. ripgrep never contracts
these buffers, so once it searches the next file, ripgrep will continue
to use this large buffer. While it might be prudent to contract these
buffers in some circumstances, this isn't otherwise inherently a
problem. The memory has already been allocated, and there isn't much
cost to using it, other than the fact that ripgrep hangs on to it and
never gives it back to the OS.

However, the `roll` implementation described above had a really
important bug in it that was impacted by the size of the buffer.
Specifically, it used the following to "roll" the partial line at the
end of the buffer to the beginning:

    self.buf.copy_within_str(self.pos.., 0);

Which means that if the buffer is very large, ripgrep will copy
*everything* from `self.pos` (which might be very small, e.g., for small
files) to the end of the buffer, and move it to the beginning of the
buffer. This will happen repeatedly each time the buffer is used to
search small files, which winds up being quite a large slow down if the
line was exceptionally large (say, megabytes).

It turns out that copying everything is completely unnecessary. We only
need to copy the remainder of the last read to the beginning of the
buffer. Everything *after* the last read in the buffer is just free
space that can be filled for the next read. So, all we need to do is
copy just those bytes:

    self.buf.copy_within_str(self.pos..self.end, 0);

... which is typically much much smaller than the rest of the buffer.

This was likely also causing small performance losses in other cases as
well. For example, when searching a lot of small files, ripgrep would
likely do a lot more copying than necessary. Although, given that the
default buffer size is 8KB, this extra copying was likely pretty small,
and was thus harder to observe.

Fixes #1335
 2019-08-02 07:23:27 -04:00
Andrew Gallant
f625d72b6f pkg: update brew tap to 11.0.2 2019-08-01 19:39:53 -04:00
Andrew Gallant
3de31f7527 ci: fix musl deployment 
The docker image that the Linux binary is now built in does not have
ASCII doc installed, so setup Cross to point to my own image with those
tools installed.
 2019-08-01 18:41:44 -04:00
Andrew Gallant
e402d6c260 ripgrep: release 11.0.2 2019-08-01 18:02:15 -04:00
Andrew Gallant
48b5bdc441 src: remove old directories 
termcolor has had its own repository for a while now. No need for these
redirects any more.
 2019-08-01 17:49:28 -04:00
Andrew Gallant
709ca91f50 ignore: release 0.4.9 2019-08-01 17:48:37 -04:00
Andrew Gallant
9c220f9a9b grep-regex: release 0.1.4 2019-08-01 17:47:45 -04:00
Andrew Gallant
9085bed139 grep-matcher: release 0.1.3 2019-08-01 17:46:59 -04:00
Andrew Gallant
931ab35f76 changelog: start work on 11.0.2 release 2019-08-01 17:42:38 -04:00
Andrew Gallant
b5e5979ff1 deps: update everything 
This drops `spin` and `autocfg`, yay.
 2019-08-01 17:42:38 -04:00
Andrew Gallant
052c857da0 doc: mention .ignore and .rgignore more prominently 
Fixes #1284
 2019-08-01 17:37:46 -04:00
Andrew Gallant
5e84e784c8 doc: add translations section 
We note that they may not be up to date and are unofficial.

Fixes #1246
 2019-08-01 17:37:46 -04:00
Andrew Gallant
01e8e11621 doc: improve PCRE2 failure mode documentation 
If a user tries to search for an explicit `\n` character in a PCRE2
regex, ripgrep won't report an error and instead will (likely) silently
fail to match.

Fixes #1261
 2019-08-01 17:32:44 -04:00
Ninan John
9268ff8e8d ripgrep: fix bug when CWD has directory named - 
Specifically, when searching stdin, if the current directory has a
directory named `-`, then the `--with-filename` flag would automatically
be turned on. This is because `--with-filename` is automatically enabled
when ripgrep is given a single path that is a directory. When ripgrep is
given empty arguments, and if it is searching stdin, then its default
path list is just simple `["-"]`. The `is_dir` check passes, and
`--with-filename` gets enabled.

This commit fixes the problem by checking whether the path is `-` first.
If so, then we assume it isn't a directory. This is fine, since if it is
a directory and one asks to search it explicitly, then ripgrep will
interpret `-` as stdin anyway (which is arguably a bug on its own, but
probably not one worth fixing).

Fixes #1223, Closes #1292
 2019-08-01 17:27:23 -04:00
dana
c2cb0a4de4 ripgrep: add --glob-case-insensitive 
This flag forces -g/--glob patterns to be treated case-insensitively, as with
--iglob patterns.

Fixes #1293
 2019-08-01 17:08:58 -04:00
Andrew Gallant
adb9332f52 regex: fix -F aho-corasick optimization 
It turns out that when the -F flag was used, if any of the patterns
contained a regex meta character (such as `.`), then we winded up
escaping the pattern first before handing it off to Aho-Corasick, which
treats all patterns literally.

We continue to apply band-aides here and just avoid Aho-Corasick if
there is an escape in any of the literal patterns. This is unfortunate,
but making this work better requires more refactoring, and the right
solution is to get this optimization pushed down into the regex engine.

Fixes #1334
 2019-08-01 16:58:12 -04:00
Matthew Davidson
bc37c32717 ignore/types: add edn type from Clojure ecosystem 
PR #1330
 2019-07-29 16:43:28 -04:00
Andrew Gallant
08ae4da2b7 deps: update them 
There are some nice removals. It looks like rand has slimmed down, and
smallvec is gone now as well.
 2019-07-25 07:52:33 -04:00
Andrew Gallant
7ac95c1f50 deps: bump ignore 2019-07-24 12:56:47 -04:00
Andrew Gallant
7a6903bd4e ignore-0.4.8 2019-07-24 12:56:01 -04:00
Tiziano Santoro
9801fae29f ignore: support compilation on wasm 
Currently the crate assumes that exactly one of `cfg(windows)` or
`cfg(unix)` is true, but this is not actually the case, for instance
when compiling for `wasm32`.

Implement the missing functions so that the crate can compile on other
platforms, even though those functions will always return an error.

PR #1327
 2019-07-24 12:55:37 -04:00
Miloš Stojanović
abdf7140d7 readme: fix broken link to Scoop bucket 
PR #1324
 2019-07-20 12:03:46 -04:00
Conrad Olega
b83e7968ef ignore/types: add Robot Framework 
PR #1322
 2019-07-14 08:12:34 -04:00
Hugo Locurcio
8ebc113847 doc: improve docs for --replace flag 
Specifically, we document shell-specific caveats related to the `--replace`
flag.

PR #1318
 2019-07-04 11:42:35 -04:00
Andrew Gallant
785c1f1766 release: globset, grep-cli, grep-printer, grep-searcher 2019-06-26 16:53:30 -04:00
Andrew Gallant
8b734cb490 deps: update everything 2019-06-26 16:51:06 -04:00
Andrew Gallant
b93762ea7a bstr: update everything to bstr 0.2 2019-06-26 16:47:33 -04:00
Andrew Gallant
34677d2622 search: a few small touchups 2019-06-18 20:23:47 -04:00
Andrew Gallant
d1389db2e3 search: better errors for preprocessor commands 
If a preprocessor command could not be started, we now show some
additional context with the error message. Previously, it showed
something like this:

  some/file: No such file or directory (os error 2)

Which is itself pretty misleading. Now it shows:

  some/file: preprocessor command could not start: '"nonexist" "some/file"': No such file or directory (os error 2)

Fixes #1302
 2019-06-16 19:02:02 -04:00
Andrew Gallant
50bcb7409e deps: update everything 2019-06-16 18:38:45 -04:00
Andrew Gallant
7b9972c308 style: fix deprecations 
Use `dyn` for trait objects and use `..=` for inclusive ranges.
 2019-06-16 18:37:51 -04:00
Hitesh Jasani
9f000c2910 ignore/types: add more nim types 
PR #1297
 2019-06-12 14:02:28 -04:00
skierpage
392682d352 doc: point regex doc link to the latest version 
The latest doc is different, e.g. adds "symmetric differences" under
https://docs.rs/regex/*/regex/#character-classes

PR #1287
 2019-06-01 08:44:55 -04:00
Andrew Gallant
7d3f794588 ignore: remove .git check in some cases 
When we know we aren't going to process gitignores, we shouldn't waste
the syscall in every directory to check for a git repo.
 2019-05-29 18:06:11 -04:00
bruce-one
290fd2a7b6 readme: mention Zstandard and Brotli 
Also alphabetise the list.

PR #1288
 2019-05-29 13:37:31 -04:00
Fabian Würfl
d1e4d28f30 readme: remove outdated statement 
Issue #10 already states that "ripgrep is now in most or all of the major
package repositories."

PR #1280
 2019-05-14 18:44:50 -04:00
Andrew Gallant
5ce2d7351d ci: use cross for musl x86_64 builds 
This is necessary because jemalloc + musl + Ubuntu 16.04 is apparently
broken.

Moreover, jemalloc doesn't support i686, so we accept the performance
regression there.

See also: https://github.com/gnzlbg/jemallocator/issues/124
 2019-04-25 11:12:14 -04:00
Andrew Gallant
9dcfd9a205 deps: bump pcre2-sys to 0.2.1 
This brings in a bug fix that no longer tries to run `git` to update the
submodule if the `git` command doesn't exist.

This is useful is more restricted build contexts where `git` isn't
installed. Such as in the docker image used for running `cross`.
 2019-04-25 11:12:14 -04:00
Andrew Gallant
36b276c6d0 printer: remove unnecessary mut 2019-04-24 17:22:27 -04:00
Andrew Gallant
03bf37ff4a alloc: use jemalloc when building with musl 
It turns out that musl's allocator is slow enough to cause a fairly
noticeable performance regression when ripgrep is built as a static
binary with musl. We fix this by using jemalloc when building with musl.

We continue to use the default system allocator in all other scenarios.
Namely, glibc's allocator doesn't noticeably regress performance compared
to jemalloc. But we could add more targets to this logic if other
system allocators (macOS, Windows) prove to be slow.

This wasn't necessary before because rustc recently stopped using jemalloc
by default.

Fixes #1268
 2019-04-24 17:21:38 -04:00
Andrew Gallant
e7829c05d3 cli: fix bug where last byte was stripped 
In an effort to strip line terminators, we assumed their existence. But
a pattern file may not end with a line terminator, so we shouldn't
unconditionally strip them.

We fix this by moving to bstr's line handling, which does this for us
automatically.
 2019-04-19 07:11:44 -04:00
Rory O’Kane
a6222939f9 readme: mention --pcre2 as long form of -P 
This is for consistency with the short and long flags given in other
bullet points. I originally assumed there was no long flag for `-P`
because none was given here.

PR #1254
 2019-04-16 21:22:48 -04:00
Rory O’Kane
6ffd434232 readme: mention --auto-hybrid-regex in advantages 
This feature solves a major reason I was skeptical of using ripgrep, so
I think it’s good to mention it in the section about why one should use
it.

I use backreferences a lot, so I had previously thought that ripgrep
would provide no speed advantage over ag, since I would always have
`-P` enabled. But when I saw `--auto-hybrid-regex` in the 11.0.0
changelog, I learned that ripgrep can use it to speed up simple queries
while still allowing me to write backreferences.

PR #1253
 2019-04-16 17:21:40 -04:00
Andrew Gallant
1f1cd9b467 pkg: update brew tap to 11.0.1 2019-04-16 13:39:56 -04:00
Andrew Gallant
973de50c9e ripgrep: release 11.0.1, take 2 2019-04-16 13:11:28 -04:00
Andrew Gallant
5f8805a496 ripgrep: release 11.0.1 2019-04-16 13:10:29 -04:00
Andrew Gallant
fdde2bcd38 deps: update regex to 1.1.6 
This brings in a fix for a regression introduced in ripgrep 11.

Fixes #1247
 2019-04-16 08:34:30 -04:00
Gerard de Melo
7b3fe6b325 doc: fix typo in FAQ 
PR #1248
 2019-04-16 08:32:30 -04:00
Max Horn
b3dd3ae203 ignore/types: add GAP 
Add support for file types used by the GAP language, a research system
computational discrete algebra, see <https://www.gap-system.org>

PR #1249
 2019-04-16 08:31:58 -04:00
Andrew Gallant
f3083e4574 readme: remove brew tap instructions 
The brew tap isn't really needed any more, since SIMD is now
automatically enabled in all binaries.
 2019-04-15 18:32:33 -04:00
Andrew Gallant
d03e30707e pkg: update brew tap to 11.0.0 2019-04-15 18:32:10 -04:00
Andrew Gallant
d7f57d9aab ripgrep: release 11.0.0 2019-04-15 18:09:40 -04:00
Andrew Gallant
1a2a24ea74 grep: release 0.2.4 2019-04-15 18:03:46 -04:00
Andrew Gallant
d66610b295 grep-cli: release 0.1.2 2019-04-15 18:02:44 -04:00
Andrew Gallant
019ae1989b grep-printer: release 0.1.2 2019-04-15 18:00:49 -04:00
Andrew Gallant
36d3f235dc grep-searcher: release 0.1.4 2019-04-15 17:59:22 -04:00
Andrew Gallant
79018eb693 grep-pcre2: release 0.1.3 2019-04-15 17:57:03 -04:00
Andrew Gallant
44cd344438 grep-regex: release 0.1.3 2019-04-15 17:56:04 -04:00
Andrew Gallant
e493e54b9b grep-matcher: release 0.1.2 2019-04-15 17:53:29 -04:00
Andrew Gallant
8e8215aa65 ignore: release 0.4.7 2019-04-15 17:50:37 -04:00
Andrew Gallant
3fe701498e doc: add note about --pre-glob 
There was a performance warning in the --pre docs, but didn't mention
--pre-glob as a possible mitigation to it.
 2019-04-15 17:47:48 -04:00
Andrew Gallant
e79085e9e4 release: globset 0.4.3 2019-04-15 14:07:03 -04:00
Andrew Gallant
764c197022 complete: fix typo 2019-04-15 07:04:57 -04:00
Andrew Gallant
ef1611b5f5 ripgrep: max-column-preview --> max-columns-preview 
Credit to @okdana for catching this. This naming is a bit more
consistent with the existing --max-columns flag.
 2019-04-15 06:51:51 -04:00
Andrew Gallant
45d12abbc5 changelog: small fixups 2019-04-14 20:21:55 -04:00
Andrew Gallant
5fde8391f9 changelog: backfill it 
I went through every commit since the 0.10.0 release and added anything
that I thought was missing.
 2019-04-14 20:04:01 -04:00
Marco Herrn
3edb11c513 ignore/types: add additional java files 
- .jspx for XHTML JSP files
- .properties for Java Properties files (resource bundles, etc.)

Closes #1242
 2019-04-14 19:38:24 -04:00
Andrew Gallant
ed144be775 ci: bump MSRV to 1.34.0 2019-04-14 19:29:27 -04:00
Andrew Gallant
967e7ad0de ripgrep: add --auto-hybrid-regex flag 
This flag, when set, will automatically dispatch to PCRE2 if the given
regex cannot be compiled by Rust's regex engine. If both engines fail to
compile the regex, then both errors are surfaced.

Closes #1155
 2019-04-14 19:29:27 -04:00
Andrew Gallant
9952ba2068 deps: update glob dev-dependency 2019-04-14 19:29:27 -04:00
Andrew Gallant
b751758d60 deps: update everything 2019-04-14 19:29:27 -04:00
Andrew Gallant
8f14cb18a5 ripgrep: increase pcre2's default JIT stack size 
The default stack size is 32KB, and this increases it to 10MB. 32KB is
pretty paltry in the environments in which ripgrep runs, and 10MB is
easily afforded as a maximum size. (The size limit we set for Rust's
regex engine is considerably larger.)

This was motivated due to the fack that JIT stack limits have been
observed to be hit in the wild:
https://github.com/Microsoft/vscode/issues/64606
 2019-04-14 19:29:27 -04:00
Andrew Gallant
da9d720431 ripgrep: add --pcre2-version flag 
This flag will output details about the version of PCRE2 that ripgrep
is using (if any).
 2019-04-14 19:29:27 -04:00
Andrew Gallant
a9d71a0368 pcre2: add a few re-exports 
This adds the top-level is_jit_available and version free functions from
the underlying pcre2 crate, and also forwards the max_jit_stack_size
option.
 2019-04-14 19:29:27 -04:00
Andrew Gallant
f3646242cc deps: use pcre2 0.2.0 
This comes with PCRE 10.32 and a few new options we'll use in subsequent
commits.
 2019-04-14 19:29:27 -04:00
Andrew Gallant
601f212a0b ripgrep: add -I as a short option for --no-filename 
This flag is commonly used in pipelines and it can be annoying to write
it out every time you need it.

Ideally, we would use -h for this to match GNU grep, but -h is used to
print help output.

Closes #1185
 2019-04-14 19:29:27 -04:00
Andrew Gallant
5a565354f8 versioning: next version will be ripgrep 11 
This sets up the release announcement and briefly describes the
versioning change. The actual version change itself won't happen until
the release.

Closes #1172
 2019-04-14 19:29:27 -04:00
Andrew Gallant
2a6532ae71 doc: note cases of exorbitant memory usage 
Fixes #1189
 2019-04-14 19:29:27 -04:00
Andrew Gallant
ece1f50cfe printer: support previews for long lines 
This commit adds support for showing a preview of long lines. While the
default still remains as completely suppressing the entire line, this
new functionality will show the first N graphemes of a matching line,
including the number of matches that are suppressed.

This was unfortunately a fairly invasive change to the printer that
required a bit of refactoring. On the bright side, the single line
and multi-line coloring are now more unified than they were before.

Closes #1078
 2019-04-14 19:29:27 -04:00
Andrew Gallant
a7d26c8f14 binary: rejigger ripgrep's handling of binary files 
This commit attempts to surface binary filtering in a slightly more
user friendly way. Namely, before, ripgrep would silently stop
searching a file if it detected a NUL byte, even if it had previously
printed a match. This can lead to the user quite reasonably assuming
that there are no more matches, since a partial search is fairly
unintuitive. (ripgrep has this behavior by default because it really
wants to NOT search binary files at all, just like it doesn't search
gitignored or hidden files.)

With this commit, if a match has already been printed and ripgrep detects
a NUL byte, then it will print a warning message indicating that the search
stopped prematurely.

Moreover, this commit adds a new flag, --binary, which causes ripgrep to
stop filtering binary files, but in a way that still avoids dumping
binary data into terminals. That is, the --binary flag makes ripgrep
behave more like grep's default behavior.

For files explicitly specified in a search, e.g., `rg foo some-file`,
then no binary filtering is applied (just like no gitignore and no
hidden file filtering is applied). Instead, ripgrep behaves as if you
gave the --binary flag for all explicitly given files.

This was a fairly invasive change, and potentially increases the UX
complexity of ripgrep around binary files. (Before, there were two
binary modes, where as now there are three.) However, ripgrep is now a
bit louder with warning messages when binary file detection might
otherwise be hiding potential matches, so hopefully this is a net
improvement.

Finally, the `-uuu` convenience now maps to `--no-ignore --hidden
--binary`, since this is closer to the actualy intent of the
`--unrestricted` flag, i.e., to reduce ripgrep's smart filtering. As a
consequence, `rg -uuu foo` should now search roughly the same number of
bytes as `grep -r foo`, and `rg -uuua foo` should search roughly the
same number of bytes as `grep -ra foo`. (The "roughly" weasel word is
used because grep's and ripgrep's binary file detection might differ
somewhat---perhaps based on buffer sizes---which can impact exactly what
is and isn't searched.)

See the numerous tests in tests/binary.rs for intended behavior.

Fixes #306, Fixes #855
 2019-04-14 19:29:27 -04:00
Andrew Gallant
bd222ae93f regex: fix HIR analysis bug 
An alternate can be empty at this point, so we must handle it. We didn't
before because the regex engine actually disallows empty alternates,
however, this code runs before the regex compiler rejects the regex.
 2019-04-14 19:29:27 -04:00
hupfdule
4359d8aac0 ignore/types: add more extensions for xml 
This includes:

    *.dtd for Document Type Definitions
    *.xsl and *.xslt for XSL Transformation descriptions
    *.xsd for XML Schema definitions
    *.xjb for JAXB bindings
    *.rng for Relax NG files
    *.sch for Schematron files

PR #1243
 2019-04-09 15:17:57 -04:00
tonypai
308819fb1f ignore/types: add lock files 
Treat anything with a `.lock` extension as a lock file, with
an extra rule or two for special cases, e.g., package-lock.json.
 2019-04-09 10:24:48 -04:00
Andrew Gallant
09108b7fda regex: make multi-literal searcher faster 
This makes the case of searching for a dictionary of a very large number
of literals much much faster. (~10x or so.) In particular, we achieve this
by short-circuiting the construction of a full regex when we know we have
a simple alternation of literals. Building the regex for a large dictionary
(>100,000 literals) turns out to be quite slow, even if it internally will
dispatch to Aho-Corasick.

Even that isn't quite enough. It turns out that even *parsing* such a regex
is quite slow. So when the -F/--fixed-strings flag is set, we short
circuit regex parsing completely and jump straight to Aho-Corasick.

We aren't quite as fast as GNU grep here, but it's much closer (less than
2x slower).

In general, this is somewhat of a hack. In particular, it seems plausible
that this optimization could be implemented entirely in the regex engine.
Unfortunately, the regex engine's internals are just not amenable to this
at all, so it would require a larger refactoring effort. For now, it's
good enough to add this fairly simple hack at a higher level.

Unfortunately, if you don't pass -F/--fixed-strings, then ripgrep will
be slower, because of the aforementioned missing optimization. Moreover,
passing flags like `-i` or `-S` will cause ripgrep to abandon this
optimization and fall back to something potentially much slower. Again,
this fix really needs to happen inside the regex engine, although we
might be able to special case -i when the input literals are pure ASCII
via Aho-Corasick's `ascii_case_insensitive`.

Fixes #497, Fixes #838
 2019-04-07 19:11:03 -04:00
Andrew Gallant
743d64f2e4 deps: update to clap 2.33 2019-04-06 10:35:08 -04:00
lesnyrumcajs
5962abc465 searcher: add option to disable BOM sniffing 
This commit adds a new encoding feature where the -E/--encoding flag
will now accept a value of 'none'. When given this value, all encoding
related machinery is disabled and ripgrep will search the raw bytes of
the file, including the BOM if it's present.

Closes #1207, Closes #1208
 2019-04-06 10:35:08 -04:00
dana
1604a18db3 ignore/types: add *.am and *.in for C/C++/make 
PR #1205
 2019-04-06 08:02:04 -04:00
luzpaz
9eeb0b01ce readme: add Repology badge 
This adds a badge to the README.md file indicating to users that click
on it if their os/distro carries that latest version of ripgrep.

PR #1213
 2019-04-06 08:00:40 -04:00
dana
df4400209a ripgrep: remove extra new-line after Clap output 
PR #1222
 2019-04-06 07:59:36 -04:00
Andrew Gallant
77439f99a4 deps: add bstr to Cargo.lock 2019-04-05 23:24:08 -04:00
Andrew Gallant
be7d6dd9ce regex: print out final regex in trace mode 
This is useful for debugging to see what regex is actually being run.
We put this as a trace since the regex can be quite gnarly. (It is not
pretty printed.)
 2019-04-05 23:24:08 -04:00
Andrew Gallant
9f15e3b671 regex: fix a perf bug when using -w flag 
When looking for an inner literal to speed up searches, if only a prefix
is found, then we generally give up doing inner literal optimizations since
the regex engine will generally handle it for us. Unfortunately, this
decision was being made *before* we wrap the regex in (^|\W)...($|\W) when
using the -w/--word-regexp flag, which would then defeat the literal
optimizations inside the regex engine.

We fix this with a bit of a hack that says, "if we're doing a word regexp,
then give me back any literal you find, even if it's a prefix."
 2019-04-05 23:24:08 -04:00
Andrew Gallant
254b8b67bb globset: small perf improvements 
This tweaks the path handling functions slightly to make them a hair
faster. In particular, `file_name` is called on every path that ripgrep
visits, and it was possible to remove a few branches without changing
behavior.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
8a7f43b84d globset: use bstr 
This simplifies the various path related functions and pushed more platform
dependent code down into bstr. This likely also makes things a bit more
efficient on Windows, since we now only do a single UTF-8 check for each
file path.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
d968a27ed5 cli: use bstr 
This uses bstr in the unescaping logic. This lets us remove some platform
specific code, and also lets us remove a hacked UTF-8 decoder on raw
bytes.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
9b8f5cbaba config: switch to using bstrs 
This lets us implement correct Unicode trimming and also simplifies the
parsing logic a bit. This also removes the last platform specific bits of
code in ripgrep core.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
c52da74ac3 printer: use bstr 
This starts the usage of bstr in the printer. We don't use it too much
yet, but it comes in handy for implementing PrinterPath and lets us push
down some platform specific code into bstr.
 2019-04-05 23:24:08 -04:00
Andrew Gallant
7dcbff9a9b searcher: partially migrate to bstr 
This commit causes grep-searcher to use byte strings internally for its
line buffer support. We manage to remove a use of `unsafe` by doing this
(by pushing it down into `bstr`).

We stop short of using byte strings everywhere else because we rely
heavily on the `impl ops::Index<[u8]> for grep_matcher::Match` impl,
which isn't available for byte strings. (It is premature to make bstr a
public dep of a core crate like grep-matcher, but maybe some day.)
 2019-04-05 23:24:08 -04:00
Andrew Gallant
bef1f0e770 ci: switch to xenial (#1234) 
Rust is having problems with trusty, in particular, see this bug I
filed: https://github.com/rust-lang/rust/issues/59411

This was purpotedly fixed in
https://github.com/rust-lang/rust/pull/59468,
but it appears the issue is still occurring.

This commit tries to update to Ubuntu 16.04 in the hope that it will fix
this problem.
 2019-04-03 19:52:34 -04:00
Andrew Gallant
cd9815cb37 deps: update to aho-corasick 0.7 
We do the simplest possible change to migrate to the new version.

Fixes #1228
 2019-04-03 13:51:26 -04:00
Andrew Gallant
3f22c3a658 deps: update everything 
This updates all dependencies to their latest versions.

We tolerate a duplicative aho-corasick for now, which we will fix in the
next commit.
 2019-04-03 13:07:26 -04:00
Andrew Gallant
0913972104 deps: bump encoding_rs_io 
This brings in a new API for disabling BOM sniffing.

This is part of the work toward completing
https://github.com/BurntSushi/ripgrep/issues/1207
 2019-03-03 16:36:34 -05:00
Andrew Gallant
f19b84fb23 regex: bump regex dep to fix match bug 
See

* 661bf53d5b
* edf45e6f5f

for details on the bug fix, which was in the regex engine.

Fixes #1203
 2019-02-27 17:42:14 -05:00
Andrew Gallant
59fc583aeb readme: include details about filtering 
Despite the fact that we mention this in several places, people are
still surprised by ripgrep's "smart" filtering.
 2019-02-27 08:01:23 -05:00
Andrew Gallant
1c7c4e6640 deps: update tempfile 2019-02-21 16:32:17 -05:00
Andrew Gallant
69c5e3938d deps: bump smallvec 
This gets rid of the unmaintained crates `unreachable` and `void`. Yay!
 2019-02-21 16:31:48 -05:00
Andrew Gallant
d9cf05ad50 deps: update to aho-corasick 0.6.10 
This brings in a fix for this bug:
https://github.com/BurntSushi/aho-corasick/issues/37

Fixes #1079
 2019-02-16 11:39:33 -05:00
Andrew Gallant
af8b6caebb deps: update various dependencies 2019-02-16 09:39:42 -05:00
Andrew Gallant
c84cfb6756 grep-regex-0.1.2 2019-02-16 09:30:06 -05:00
Andrew Gallant
895e26a000 ci: don't do releases on all tags 
This attempts to make Appveyor more conservative in what tags it thinks
are releases. I don't know for sure, but it looks like the previous
regex could match anywhere, so we anchor it.

Fixes #1195
 2019-02-10 12:51:56 -05:00
Andrew Gallant
8c95290ff6 deps: miscellaneous updates 2019-02-10 07:45:08 -05:00
Andrew Gallant
d6feeb7ff2 grep-searcher-0.1.3 2019-02-10 07:42:37 -05:00
Andrew Gallant
626ed00c19 searcher: revert big-endian patch 
This undoes the patch to stop using bytecount on big-endian
architectures. In particular, we bump our bytecount dependency to the
latest release, which has a fix.

This reverts commit a4868b8835.

Fixes #1144 (again), Closes #1194
 2019-02-10 07:40:32 -05:00
Andrew Gallant
332ad18401 tests: use const constructor for atomics 
We did this in 05411b2b for core ripgrep, but didn't carry it over to
tests.
 2019-02-09 16:27:25 -05:00
Andrew Gallant
fc3cf41247 grep-searcher-0.1.2 2019-02-09 16:13:07 -05:00
Andrew Gallant
a4868b8835 searcher: use naive line counting on big-endian 
This patches out bytecount's "fast" vectorized algorithm on big-endian
machines, where it has been observed to fail. Going forward, bytecount
should probably fix this on their end, but for now, we take a small
performance hit on big-endian machines.

Fixes #1144
 2019-02-09 16:13:07 -05:00
John Schmidt
f99b991117 ignore/types: add zig 
PR #1191
 2019-02-08 08:12:40 -05:00
Andrew Gallant
de0bc78982 deps: bump encoding_rs to 0.8.16 
This brings in an updated `encoding_rs` crate that uses `packed_simd`,
which compiles on the latest nightly. Compilation times do appear to be
impacted significantly though.

Fixes #1175 (again)
 2019-02-07 17:05:14 -05:00
Steffen Banhardt
147e96914c ignore/types: *.dtx and *.ins added for tex 
PR #1182
 2019-01-31 09:06:19 -05:00
Andrew Gallant
0abc40c23c readme: bump MSRV 
We bumped it a while back in the CI configuration, but didn't update the
README.
 2019-01-29 13:10:43 -05:00
Andrew Gallant
f768796e4f deps: update other deps 2019-01-29 13:08:56 -05:00
Andrew Gallant
da0c0c4705 deps: update to crossbeam-channel 0.3.8 
This drops dependencies on parking_lot and rand from ripgrep.

(rand is still used for tests.)
 2019-01-29 13:07:37 -05:00
Andrew Gallant
05411b2b32 deprecated: remove use of ATOMIC_BOOL_INIT 
Our MSRV is high enough that we can use const functions now.
 2019-01-29 13:05:16 -05:00
Andrew Gallant
cc93db3b18 cargo: include auto-generated message 
This is going to be annoying for a while if one switches between the
latest nightly compiler and older compilers. Sigh.
 2019-01-29 13:04:40 -05:00
Alex Macleod
049354b766 readme: remove EOL Fedora install instructions 
Fedora 27 and below are past their EOL, so it can now be said that it's
supported regularly on Fedora.

PR #1177
 2019-01-28 08:15:36 -05:00
Andrew Gallant
386dd2806d changelog: BUG #916 
This was fixed by bumping the MSRV above Rust 1.28.

Fixes #916
 2019-01-27 13:15:17 -05:00
Andrew Gallant
5fe9a954e6 changelog: BUG #1154 2019-01-27 13:05:50 -05:00
Andrew Gallant
f158a42a71 ignore: correctly detect hidden files on Windows 
This commit fixes a bug where ripgrep only treated files beginning with
a `.` as hidden. On Windows, we continue this tradition, but
additionally check whether a file has the special Windows "hidden"
attribute set. If so, we treat it as a hidden file.

In order to make this work without an additional stat call, we had to
rearrange some of the plumbing from the directory traverser.

Fixes #1154
 2019-01-27 12:11:52 -05:00
Andrew Gallant
5724391d39 doc: small updates to the FAQ and GUIDE 
Notably, ripgrep can do multiline search now. We also update the
supported compression format list and replace deprecated flags like
`--sort-files` with `--sort path`.
 2019-01-26 16:19:09 -05:00
Andrew Gallant
0df71240ff search: fix -F and -f interaction bug 
This fixes what appears to be a pretty egregious regression where the
`-F/--fixed-strings` flag wasn't be applied to patterns supplied via
the `-f/--file` flag. The same bug existed for the `-x/--line-regexp`
flag as well, which we fix here.

Fixes #1176
 2019-01-26 16:01:52 -05:00
Andrew Gallant
f3164f2615 exit: tweak exit status logic 
This changes how ripgrep emit exit status codes. In particular, any error
that occurs while searching will now cause ripgrep to emit a `2` exit
code, where as it previously would emit either a `0` or a `1` code based
on whether it matched or not. That is, ripgrep would only emit a `2` exit
code for a catastrophic error.

This tweak includes additional logic that GNU grep adheres to, which seems
like good sense. Namely, if -q/--quiet is given, and an error occurs and
a match occurs, then ripgrep will emit a `0` exit code.

Closes #1159
 2019-01-26 15:44:49 -05:00
Andrew Gallant
31d3e24130 args: prevent panicking in 'rg -h | rg' 
Previously, we relied on clap to handle printing either an error
message, or --help/--version output, in addition to setting the exit
status code. Unfortunately, for --help/--version output, clap was
panicking if the write failed, which can happen in fairly common
scenarios via a broken pipe error. e.g., `rg -h | head`.

We fix this by using clap's "safe" API and doing the printing ourselves.
We also set the exit code to `2` when an invalid command has been given.

Fixes #1125 and partially addresses #1159
 2019-01-26 14:39:40 -05:00
Andrew Gallant
bf842dbc7f doc: add note about inverted flags 
Fixes #1091
 2019-01-26 14:13:06 -05:00
Andrew Gallant
6d5dba85bd doc: clarify automatic encoding detection 
Fixes #1103
 2019-01-26 13:55:47 -05:00
Andrew Gallant
afb89bcdad fmt: shorten --ignore-file-case-insensitive description 2019-01-26 13:45:02 -05:00
Andrew Gallant
332dc56372 changelog: BUG #1095 2019-01-26 13:40:59 -05:00
Andrew Gallant
12a6ca45f9 config: add --no-ignore-dot flag 
This flag causes ripgrep to ignore `.ignore` files.

Closes #1138
 2019-01-26 13:40:12 -05:00
Andrew Gallant
9d703110cf regex: make CRLF hack more robust 
This commit improves the CRLF hack to be more robust. In particular, in
addition to rewriting `$` as `(?:\r??$)`, we now strip `\r` from the end
of a match if and only if the regex has an ending line anchor required for
a match. This doesn't quite make the hack 100% correct, but should fix most
use cases in practice. An example of a regex that will still be incorrect
is `foo|bar$`, since the analysis isn't quite sophisticated enough to
determine that a `\r` can be safely stripped from any match. Even if we
fix that, regexes like `foo\r|bar$` still won't be handled correctly. Alas,
more work on this front should really be focused on enabling this in the
regex engine itself.

The specific cause of this bug was that grep-searcher was sneakily
stripping CRLF from matching lines when it really shouldn't have. We remove
that code now, and instead rely on better match semantics provided at a
lower level.

Fixes #1095
 2019-01-26 12:34:28 -05:00
Andrew Gallant
e99b6bda0e deps: bump regex-syntax to 0.6.5 
This is necessary for the use of the new is_line_anchored_{start,end}
APIs.
 2019-01-26 12:20:02 -05:00
Andrew Gallant
276e2c9b9a searcher: always strip BOM 
This fixes a bug where a BOM prefix was included. While this was somewhat
intentional in order to have a faithful "UTF8 passthru" option, in
practice, this causes problems such as breaking patterns like `^` in a
really non-obvious way.

The actual fix was to add a new API to encoding_rs_io, which this commit
brings in.

Fixes #1163
 2019-01-25 17:18:57 -05:00
Andrew Gallant
9a9f54d44c readme: encoding_rs's SIMD support is broken 
Add a note about it to the README.

Also, remove mention of the avx-accel feature since it no longer exists.
(bytecount now uses runtime detection to enable SIMD support.)

Fixes #1175
 2019-01-24 07:00:53 -05:00
Andrew Gallant
47833b9ce7 deps: update removal of grep devdeps 2019-01-23 20:14:37 -05:00
Awad Mackie
44a9e37737 ignore/types: add method for retrieving file type definition 
Fixes #1116, Closes #1120
 2019-01-23 20:08:48 -05:00
Andrew Gallant
8fd05cacee changelog: BUG #1121 2019-01-23 20:06:01 -05:00
Rob Lourens
4691d11034 ripgrep: don't skip stdout in --files mode 
Specifically, this avoids triggering Windows antimalware when in --files mode.

See also #600.

Fixes #1121
 2019-01-23 20:04:44 -05:00
Andrew Gallant
519a6b68af grep: remove unused dependencies 
We remove these for now, but we'll eventually add them back once the
examples get more fleshed out.

Closes #1043
 2019-01-23 20:01:32 -05:00
Andrew Gallant
9c940b45f4 globset: permit ** to appear anywhere 
Previously, `man gitignore` specified that `**` was invalid unless it
was used in one of a few specific circumstances, i.e., `**`, `a/**`,
`**/b` or `a/**/b`. That is, `**` always had to be surrounded by either
a path separator or the beginning/end of the pattern.

It turns out that git itself has treated `**` outside the above contexts
as valid for quite a while, so there was an inconsistency between the
spec `man gitignore` and the implementation, and it wasn't clear which
was actually correct.

@okdana filed a bug against git[1] and got this fixed. The spec was wrong,
which has now been fixed [2] and updated[2].

This commit brings ripgrep in line with git and treats `**` outside of
the above contexts as two consecutive `*` patterns. We deprecate the
`InvalidRecursive` error since it is no longer used.

Fixes #373, Fixes #1098

[1] - https://public-inbox.org/git/C16A9F17-0375-42F9-90A9-A92C9F3D8BBA@dana.is
[2] - 627186d020
[3] - https://git-scm.com/docs/gitignore
 2019-01-23 19:59:39 -05:00
Andrew Gallant
0a167021c3 changelog: BUG #1174 2019-01-23 19:19:26 -05:00
Andrew Gallant
aeaa5fc1b1 globset: fix repeated use of ** 
This fixes a bug where repeated use of ** didn't behave as it should. In
particular, each use of `**` added a new requirement directory depth
requirement. For example, something like `**/**/b` would match
`foo/bar/b`, but it wouldn't match `foo/b` even though it should. In
particular, `**` semantics demand "infinite" depth, so repeated uses of
`**` should just coalesce as if only one was given.

We do this coalescing in the parser. It's a little tricky because we
treat `**/a`, `a/**` and `a/**/b` as distinct tokens with their own
regex conversions. We also test the crap out of it.

Fixes #1174
 2019-01-23 19:15:02 -05:00
Andrew Gallant
7048a06c31 changelog: BUG #1173 2019-01-23 18:14:16 -05:00
Andrew Gallant
23be3cf850 ignore: fix handling of ** 
When deciding whether to add the `**/` prefix or not, we should choose
not to add it if the pattern is simply a bare `**`. Previously, we were
only not adding it if it was `**/`, which is correct, but we also need
to do it for `**` since `**` can already match anywhere.

There's likely a more principled solution to this, but this works for
now.

Fixes #1173
 2019-01-23 18:12:35 -05:00
Andrew Gallant
b48bbf527d changelog: PR #1093 2019-01-23 17:56:18 -05:00
dana
8eabe47b57 ignore: always use literal_separator for gitignore patterns (#1093) 
PR #1093
 2019-01-23 17:54:28 -05:00
Michele Bologna
ff712bfd9d readme: add instructions for openSUSE 15.0 
PR #1088
 2019-01-22 21:46:11 -05:00
Mika Dede
a7f2d48234 printer: fix path handling in summarizer 
This commit fixes a bug where both of the following commands always
reported an error:

    rg --files-with-matches foo file
    rg --files-without-match foo file

In particular, the printer was erroneously respecting the `path` option
even the the summary kind was `PathWithMatch` or `PathWithoutMatch`. The
documented behavior is that those summary kinds always require a path,
and thus, the `path` option has no effect. We fix this by correcting the
case analysis.

This also fixes a bug where the exit code for `--files-without-match`
was not set correctly. We update the printer's `has_match` method to
report the correct value.

Fixes #1106, Closes #1130
 2019-01-22 21:37:23 -05:00
Andrew Gallant
57500ad013 changelog: brotli/zstd addition 2019-01-22 20:57:28 -05:00
dana
0b04553aff grep-cli: support Brotli/Zstd decompression 
Fixes #1099
 2019-01-22 20:56:16 -05:00
dana
1ae121122f ignore/types: add/update brotli, bzip2, gzip, xz, zstd 2019-01-22 20:56:16 -05:00
Andrew Gallant
688003e51c ripgrep: ban rustfmt 2019-01-22 20:07:26 -05:00
David Torosyan
718a00f6f2 ripgrep: add --ignore-file-case-insensitive 
The --ignore-file-case-insensitive flag causes all
.gitignore/.rgignore/.ignore files to have their globs matched without
regard for case. Because this introduces a potentially significant
performance regression, this is always disabled by default. Users that
need case insensitive matching can enable it on a case by case basis.

Closes #1164, Closes #1170
 2019-01-22 20:03:59 -05:00
Andrew Gallant
7cbc535d70 edition: fix build.rs 2019-01-19 10:46:57 -05:00
Andrew Gallant
7a6a40bae1 edition: move core ripgrep to Rust 2018 2019-01-19 10:44:30 -05:00
Andrew Gallant
1e9ee2cc85 deps: update memmap 2019-01-19 10:44:30 -05:00
Andrew Gallant
968491f8e9 deps: update to bytecount 0.5 
bytecount now uses runtime dispatch for enabling SIMD, which means we can
no longer need the avx-accel features. We remove it from ripgrep since the
next release will be a minor version bump, but leave them as no-ops for
the crates that previously used it.
 2019-01-19 10:44:30 -05:00
Andrew Gallant
63b0f31a22 deps: update various dependencies 
We also increase the MSRV to 1.32, the current stable release, which sets
the stage for migrating to Rust 2018.
 2019-01-19 10:44:30 -05:00
P M
7ecee299a5 ignore/types: add QML 
PR #1165
 2019-01-18 06:48:47 -05:00
David Håsäther
dd396ff34e doc: fix typo 
PR #1161
 2019-01-14 06:50:30 -05:00
Andrew Gallant
fb0a82f3c3 grep-printer: add macro docs, redux 2019-01-11 09:18:09 -05:00
Andrew Gallant
dbc8ca9cc1 grep-searcher: add docs for assert_eq_printed 
Looks like the deny(missing_docs) lint got a bit stronger.
 2019-01-11 09:03:00 -05:00
Marco Hinz
c3db8db93d doc: fix typo 2019-01-05 11:18:05 -05:00
Andrew Gallant
17ef4c40f3 ignore-0.4.6 2018-12-30 08:46:09 -05:00
Andrew Gallant
a9e0477ea8 ignore: permit use of deprecated trim_right 2018-12-30 08:44:59 -05:00
Andrew Gallant
b3c5773266 deps: bump ignore 2018-12-30 08:43:18 -05:00
Andrew Gallant
118b950085 ignore-0.4.5 2018-12-15 08:44:10 -05:00
Andrew Gallant
b45b2f58ea deps: update most other dependencies 
This commit is the result of doing:

  $ cargo update
  $ cargo update -p encoding_rs --precise 0.8.10

where the latter line prevents encoding_rs from updating to 0.8.11 (or
newer). In particular, the 0.8.11 release increased the minimum Rust
version to 1.29, where as ripgrep 0.10.x is still on 1.28. We stay on an
older version for now until ripgrep is ready to move to 0.11.x.
 2018-12-15 08:42:14 -05:00
Andrew Gallant
662a9bc73d deps: update to crossbeam-channel 0.3 
This also requires corresponding updates to both rand and rand_core. Doing
an update of rand without doing an update of rand_core results in
compilation errors because two distinct versions of rand_core are included
in the build, and the traits they expose are distinct and incompatible.

We also switch over to using tempfile instead of tempdir, which drops the
last remaining thing keeping rand 0.4 in the build.

Fixes #1141, Fixes #1142
 2018-12-15 08:40:04 -05:00
Andrew Gallant
401add0a99 deps: update regex and regex-syntax 
This brings in some new Unicode properties, such as \p{Emoji}.

It is now also technically possible construct a regex that recognizes
grapheme clusters.
 2018-12-09 16:33:37 -05:00
Simon Morgan
f81b72721b ignore/types: add ASP 
PR #1134
 2018-12-07 16:19:33 -05:00
Antony Lee
1d4fccaadc ignore/types: add postscript 
Although postscript/encapsulated postscript is usually thought of as a
binary format, it's actually mostly ASCII, so ripgrep will not ignore
these files.

The situation is basically the same as for pdf, which is also already
present in the list of known filetypes.

PR #1118
 2018-11-23 09:46:11 -05:00
Matteo Bertini
09e464e674 ignore/types: add more Cython file types 
From the [Cython file types](https://cython.readthedocs.io/en/latest/src/userguide/language_basics.html?highlight=pxi#cython-file-types) paragraph on the official docs:

> There are three file types in Cython:
>    The implementation files, carrying a .py or .pyx suffix.
>    The definition files, carrying a .pxd suffix.
>    The include files, carrying a .pxi suffix.

PR #1113
 2018-11-19 07:37:00 -05:00
Jon Parise
31adff6f3c ignore/types: add Apache Thrift 
PR #1102
 2018-11-07 07:42:13 -05:00
Andrew Gallant
b41e596327 doc: escape braces in AsciiDoc 
This commit fixes a bug where AsciiDoc would drop any line containing a
'{foo}' because it interpreted it as an undefined attribute reference:

> Simple attribute references take the form {<name>}. If the attribute name
> is defined its text value is substituted otherwise the line containing the
> reference is dropped from the output.

See: https://www.methods.co.nz/asciidoc/chunked/ch30.html

We fix this by simply replacing all occurrences of '{' and '}' with
their escaped forms: '&#123;' and '&#125;'.

Fixes #1101
 2018-11-06 06:57:16 -05:00
Andrew Gallant
fb62266620 deps: update encoding_rs 
This commit bumps the version of encoding_rs to use the latest release.
This appears to fix a panic in UTF-16 decoding.

Fixes #1089
 2018-10-22 06:50:35 -04:00
Dave Lee
acf226c39d ignore/types: add BUILD.bazel to bazel file type 
PR #1074
 2018-10-02 18:00:04 -04:00
Mathieu Bridon
8299625e48 ignore/types: add buildstream 
BuildStream is a Free Software tool for building/integrating software stacks.: https://buildstream.gitlab.io/buildstream/

It uses recipes written in YAML, in files with the `.bst` extension.

PR #1071
 2018-09-28 08:32:24 -04:00
Andrew Gallant
db256c87eb ripgrep: suggest -U/--multiline 
When a "\n literal is not allowed" error is reported, ripgrep will now
suggest the use of the -U/--multiline flag, which enables matching
newlines.

Fixes #1055
 2018-09-25 16:56:04 -04:00
Andrew Gallant
ba533f390e grep-searcher: update to encoding_rs_io 0.1.3 
This update includes a work-around for a presumed bug in encoding_rs
that causes a panic:
https://github.com/hsivonen/encoding_rs/issues/34

Specifically, to reproduce this in ripgrep, one can run the following:

    $ curl -LO https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.1.tar.gz
    $ tar xf ruby-2.5.1.tar.gz
    $ rg ZZZZZ ruby-2.5.1/test/rexml/data/t63-2.svg
    thread 'main' panicked at 'index out of bounds: the len is 1 but the index is 1'

Fixes #1052
 2018-09-25 16:56:04 -04:00
Andrew Gallant
ba503eb677 grep-regex: fix inner literal detection 
It seems the inner literal detector fails spectacularly in cases of
concatenations that involve groups. The issue here is that if the prefix
of a group inside a concatenation can match the empty string, then any
literals generated to that point in the concatenation need to be cut
such that they are never extended. The detector isn't really built to
handle this case, so we just act conservative cut literals whenever we
see a sub-group. This may make some regexes slower, but the inner
literal detector already misses plenty of cases.

Literal detection (including in the regex engine) is a key component
that needs to be completely rethought at some point.

Fixes #1064
 2018-09-25 16:56:04 -04:00
Andrew Gallant
f72c2dfd90 readme: touch up README 
Make the wording consistent.
 2018-09-14 11:33:56 -04:00
Sylvestre Ledru
c0aa58b4f7 Ripgrep is also available in Ubuntu (from Cosmic) 2018-09-14 08:41:05 +02:00
ykgmfq
184ee4c328 deb: add section info 
Put it in the same section as
https://packages.debian.org/stretch/grep

PR #1051
 2018-09-13 08:17:24 -04:00
Gabe Berke-Williams
e82fbf2c46 doc: fix typo 
"cretion" -> "creation"

PR #1045
 2018-09-10 06:49:48 -04:00
Andrew Gallant
eb18da0450 pcre2: use jit_if_available 
This will allow PCRE2 to fall back to non-JIT matching when running on
platforms without JIT support.

ref https://github.com/BurntSushi/rust-pcre2/issues/3
 2018-09-08 17:12:14 -04:00
Andrew Gallant
0f7494216f readme: update dpkg version 2018-09-08 10:46:40 -04:00
Andrew Chin
442a278635 readme: fancy regexes are not supported by default 
PR #1042
 2018-09-07 17:43:24 -04:00
Andrew Gallant
7ebed3ace6 pkg: update brew tap to 0.10.0 2018-09-07 14:43:59 -04:00
Andrew Gallant
8a7db1a918 ci: tweak deployment conditions 2018-09-07 14:07:52 -04:00
Andrew Gallant
ce80d794c0 changelog: add release date 2018-09-07 14:00:23 -04:00
Andrew Gallant
c5d467a2ab ci: always force PCRE2 static builds for releases 2018-09-07 14:00:23 -04:00
Andrew Gallant
a62cd553c2 ci: clean up appveyor 
Remove some outdated comments and unused config. Also, make the regex for
matching tags a bit more specific.
 2018-09-07 14:00:22 -04:00
Andrew Gallant
ce5188335b ci: remove 'branch' condition for deployment 
Travis docs[1] say this is ignore when 'tags' is used.

[1] - https://docs.travis-ci.com/user/deployment/#conditional-releases-with-on
 2018-09-07 14:00:22 -04:00
Andrew Gallant
b7a456ae83 deb: add completions 
This commit adds Bash, zsh and fish completions to the Debian binary
package.

Fixes #1032
 2018-09-07 14:00:22 -04:00
Andrew Gallant
d14f0b37d6 deps: update versions for all crates 
I don't think every change here is needed, but this ensures we're using
the latest version of every direct dependency.
 2018-09-07 14:00:22 -04:00
Andrew Gallant
3ddc3c040f deps: minor updates 2018-09-07 13:03:01 -04:00
Andrew Gallant
eeaa42ecaf scripts: add copy-examples 
This is a preliminary script to copy example code from a Markdown file
into a crate's example directory.

This is intended to be used for the upcoming libripgrep guide, but we
don't commit any examples yet.
 2018-09-07 12:27:48 -04:00
Andrew Gallant
3797a2a5cb simplegrep: touch up 2018-09-07 12:24:50 -04:00
Andrew Gallant
0e2f8f7b47 grep: add clap and regex dev dependencies to grep 
These are (or will be) used in grep's examples.
 2018-09-07 12:06:05 -04:00
Andrew Gallant
3dd4b77dfb grep-searcher: add Box<...> impl for Sink 
We initially did not have this impl because the first revision of the Sink
trait was much more complicated. In particular, each method was
parameterized over a Matcher. But not every Sink impl actually needs a
Matcher, and it is just as easy to borrow a Matcher explicitly, so the
added parameterization wasn't holding its own.

This does permit Sink implementations to be used as trait objects. One
key use case here is to reduce compile times, since there is quite a bit
of code inside grep-searcher that is parameterized on Sink. Unfortunately,
that code is *also* parameterized on Matcher, and the various printers in
grep-printer are also parameterized on Matcher, which means Sink trait
objects are necessary but no sufficient for a major reduction in compile
times. Unfortunately, the path to making Matcher object safe isn't quite
clear. Extension traits maybe? There's also stuff in the Serde ecosystem
that might help, but the type shenanigans can get pretty gnarly.
 2018-09-07 12:06:05 -04:00
Andrew Gallant
3b5cdea862 doc: minor touchups to API docs 2018-09-07 12:06:05 -04:00
Andrew Gallant
54b3e9eb10 grep-printer: delete unused code 2018-09-07 12:06:05 -04:00
Andrew Gallant
56e8864426 grep-matcher: add LineTerminator::is_suffix 
This centralizes the logic for checking whether a line has a line
terminator or not.
 2018-09-07 12:06:04 -04:00
Andrew Gallant
b8f619d16e readme: a few clarifications 2018-09-07 12:06:04 -04:00
Andrew Gallant
83dff33326 deps: update various deps 2018-09-04 23:29:22 -04:00
Andrew Gallant
003c3695f4 deps: update grep version 2018-09-04 23:29:05 -04:00
Andrew Gallant
10777c150d grep-0.2.1 2018-09-04 23:25:39 -04:00
Andrew Gallant
827179250b changelog: assign feature id 2018-09-04 23:24:22 -04:00
Andrew Gallant
fd22cd520b windows: fix unused warnings on Windows 2018-09-04 23:18:55 -04:00
Andrew Gallant
241bc8f8fc ripgrep: add --pre-glob flag 
The --pre-glob flag is like the --glob flag, except it applies to filtering
files through the preprocessor instead of for search. This makes it
possible to apply the preprocessor to only a small subset of files, which
can greatly reduce the process overhead of using a preprocessor when
searching large directories.
 2018-09-04 23:18:55 -04:00
Andrew Gallant
b6e30124e0 ripgrep: add --line-buffered and --block-buffered 
These flags provide granular control over ripgrep's buffering strategy.
The --line-buffered flag can be genuinely useful in certain types of shell
pipelines. The --block-buffered flag has a murkier use case, but we add it
for completeness.
 2018-09-04 23:18:55 -04:00
Andrew Gallant
4846d63539 grep-cli: introduce new grep-cli crate 
This commit moves a lot of "utility" code from ripgrep core into
grep-cli. Any one of these things might not be worth creating a new
crate, but combining everything together results in a fair number of a
convenience routines that make up a decent sized crate.

There is potentially more we could move into the crate, but much of what
remains in ripgrep core is almost entirely dealing with the number of
flags we support.

In the course of doing moving things to the grep-cli crate, we clean up
a lot of gunk and improve failure modes in a number of cases. In
particular, we've fixed a bug where other processes could deadlock if
they write too much to stderr.

Fixes #990
 2018-09-04 23:18:55 -04:00
helloer
13c47530a6 ignore/types: add pascal type 
PR #1036
 2018-09-03 07:25:07 -04:00
Jakub Wilk
328f4369e6 doc: fix typos 2018-08-31 11:59:28 -04:00
Andrew Gallant
04518e32e7 deps: update other crates 2018-08-30 23:03:07 -04:00
Andrew Gallant
f2eaf5b977 deps: update termcolor for perf tweaks 2018-08-30 22:57:01 -04:00
Andrew Gallant
3edeeca6e9 changelog: fix typo 2018-08-29 18:46:34 -04:00
Andrew Gallant
c41b353009 changelog: update 
This brings the changelog up to date with HEAD and rewords a few things.
 2018-08-29 18:25:08 -04:00
Aaron Power
d18839f3dc ignore: add into_path for DirEntry (#1031) 
This commit adds ignore::DirEntry::into_path to match
the corresponding method on walkdir::DirEntry.
 2018-08-28 18:27:34 -04:00
Andrew Gallant
8f978a3cf7 doc: clarify and fix typo 
Clarify that --byte-offset may be wrong if the source isn't being read
directly.

Also tweak the README a bit. And remove a damned Oxford comma.
 2018-08-27 21:21:37 -04:00
Andrew Gallant
87b745454d ripgrep: use 'ignore' for skipping stdout 
This removes ripgrep-specific code for filtering files that correspond to
stdout and instead uses the 'ignore' crate's functionality for doing the
same.
 2018-08-27 21:18:53 -04:00
Andrew Gallant
e5bb750995 ignore: add 'stdout' skipping to the walker 
This commit adds a new 'skip_stdout' option to the directory walker. When
enabled, it will skip yielding any directory entries that are believed to
correspond to stdout for the current process. This is useful for filtering
out 'results' in a command like 'grep -r foo > results' in order to avoid
an unbounded feedback mechanism.
 2018-08-27 21:18:53 -04:00
dana
d599f0b3c7 complete: don't complete bare pattern after -f 2018-08-27 07:56:40 -04:00
Andrew Gallant
40e310a9f9 ripgrep: add --sort and --sortr flags 
These flags each accept one of five choices: none, path, modified,
accessed or created. The value indicates how the results are sorted.
For --sort, results are sorted in ascending order where as for --sortr,
results are sorted in descending order.

Closes #404
 2018-08-26 18:42:25 -04:00
Andrew Gallant
510f15f4da ignore: add sort_by_file_path builder method 
This permits callers to sort entries by their full file path, which makes
it easy to query for various file statistics.

It would have been better to provide a comparator on DirEntry itself,
similar to how walkdir does it, but this seems to require quite a bit of
work to make the types work out, assuming we want to continue to use
walkdir's sorting support (we do).
 2018-08-26 18:42:25 -04:00
Andrew Gallant
f9ce7a84a8 ignore: add 'same_file_system' option 
This commit adds a 'same_file_system' option to the walk builder. For
single threaded walking, it defers to the walkdir crate, which has the
same option. The bulk of this commit implements this flag for the parallel
walker. We add one very feeble test for this.

The parallel walker is now officially a complete mess.

Closes #321
 2018-08-26 18:42:25 -04:00
Andrew Gallant
1b6089674e deps: more updates 2018-08-26 18:42:25 -04:00
Andrew Gallant
05a0389555 ripgrep: use winapi-util for stdin_is_readable 2018-08-25 00:30:15 -04:00
Andrew Gallant
16353bad6e deps: update various deps 
This includes a new crate, winapi-util, that is now used in wincolor,
walkdir and same-file.
 2018-08-25 00:19:40 -04:00
Tim Kilbourn
fe442de091 changelog: fix typo 
Fuchsia is a pain to spell.

PR #1026
 2018-08-23 13:17:27 -04:00
Andrew Gallant
1bb8b7170f doc: clarify use of SIMD features 
You need a nightly compiler.

Ref #188
 2018-08-23 09:56:37 -04:00
Andrew Gallant
55ed698a98 deps: update walkdir minimum version 
We'll want to be using the new `same_file_system` option soon.
 2018-08-23 09:54:45 -04:00
Andrew Gallant
f1e025873f deps: update dependencies 
This includes an update to walkdir 2.2.2, which includes a
`same_file_system` option.
 2018-08-22 20:50:24 -04:00
Andrew Gallant
033ad2b8e4 deps: update clap 
Update clap to the latest version.

Also, drop the ansi_term dependency by disabling color output in clap's
error messages.
 2018-08-21 23:10:34 -04:00
Andrew Gallant
098a8ee843 deps: various patch upgrades 2018-08-21 23:05:52 -04:00
Andrew Gallant
2f3dbf5fee ignore: fix false positive in path_is_symlink 
This commit fixes a bug where the first path always reported itself as
as symlink via `path_is_symlink`.

Part of this fix includes updating walkdir to 2.2.1, which also includes
a corresponding bug fix.

Fixes #984
 2018-08-21 23:05:52 -04:00
Andrew Gallant
5c80e4adb6 release: better support for binary Debian package 
This commit beefs up the package metadata used by the 'cargo deb' tool to
produce a binary dpkg. In particular, we now include ripgrep's man page.

This commit includes a new script, 'ci/build_deb.sh', which will handle
the build process for a dpkg, which has become a bit more nuanced than
just running 'cargo deb'. We don't (yet) run this script in CI.

Fixes #842
 2018-08-21 23:05:52 -04:00
Andrew Gallant
fcd1853031 doc: update ripgrep's description 
This now mentions PCRE2 support.
 2018-08-21 23:05:52 -04:00
Andrew Gallant
74a89be641 grep-printer: fix bug in printing truncated lines 
When emitting color, the printer wasn't checking whether the line
exceeded the maximum allowed length.
 2018-08-21 23:05:52 -04:00
Andrew Gallant
5b1ce8bdc2 tests: touch up tests on Windows 
This fixes warnings and adds an additional invalid UTF-8 test that will
run on Windows.
 2018-08-21 23:05:52 -04:00
Andrew Gallant
1529ce3341 ripgrep: remove workaround for std bug 
This commit undoes a work-around for a bug in Rust's standard library
that prevented correct file type detection on Windows in OneDrive
directories. We remove the work-around because we are moving to a
latest-stable Rust version policy, which has included this fix for a while
now.

ref #705, https://github.com/rust-lang/rust/issues/46484
 2018-08-21 23:05:52 -04:00
Andrew Gallant
95a4f15916 ignore: clarify docs for DirEntry::error 
Fixes #953
 2018-08-21 23:05:52 -04:00
Andrew Gallant
0eef05142a ripgrep: move minimum version to Rust stable 
This also updates some code to make use of our more liberal versioning
requirement, including the use of crossbeam-channel instead of the MsQueue
from the older an unmaintained crossbeam 0.3. This does regrettably add
a sizable number of dependencies, however, compile times seem mostly
unaffected.

Closes #1019
 2018-08-21 23:05:52 -04:00
Andrew Gallant
edd6eb4e06 ripgrep: make --no-pcre2-unicode the canonical flag 
Previously, we used --pcre2-unicode as the canonical flag despite the
fact that it is enabled by default, which is inconsistent with how we
handle other similar flags.

The reason why --pcre2-unicode was made the canonical flag was to make
it easier to discover since it would be sorted near the --pcre2 flag. To
solve that problem, we simply start a convention that lists related
flags in the docs.

Fixes #1022
 2018-08-21 23:05:52 -04:00
Andrew Gallant
7ac9782970 doc: fix typo 2018-08-20 18:00:14 -04:00
Andrew Gallant
180054d7dc doc: caveats 2018-08-20 17:58:29 -04:00
Andrew Gallant
7eaaa04c69 ripgrep: small cleanups 2018-08-20 17:34:45 -04:00
Andrew Gallant
87a627631c doc: add section on PCRE2 performance 2018-08-20 17:34:45 -04:00
Andrew Gallant
9df60e164e deps: update other dependencies to latest 2018-08-20 17:34:45 -04:00
Andrew Gallant
afa06c518a deps: update libripgrep crate versions 
This prepares them for an initial 0.1.0 release.
 2018-08-20 17:34:45 -04:00
Andy Freeland
e46aeb34f8 ignore/types: add .mako and .mao for Mako templates 
I've personally never seen `.mao`, but GitHub includes it in Linguist: 
4f11062304/lib/linguist/languages.yml (L2702-L2709)
 2018-08-20 15:26:49 -04:00
dana
d8f187e990 complete: add completion reference guide 2018-08-20 11:53:19 -04:00
dana
7d93d2ab05 ripgrep: add --no-multiline-dotall 2018-08-20 07:50:00 -04:00
dana
9ca2d68e94 ripgrep: fix typos in option descriptions 2018-08-20 07:50:00 -04:00
dana
60b0e3ff80 complete: update wording, exclusion, &c. 2018-08-20 07:50:00 -04:00
dana
3a1c081c13 test_complete: match certain long options in description bodies 2018-08-20 07:50:00 -04:00
Andrew Gallant
d5c0b03030 changelog: massive update for libripgrep 
This commit updates the CHANGELOG to reflect all the work done to make
libripgrep a reality.

* Closes #162 (libripgrep)
* Closes #176 (multiline search)
* Closes #188 (opt-in PCRE2 support)
* Closes #244 (JSON output)
* Closes #416 (Windows CRLF support)
* Closes #917 (trim prefix whitespace)
* Closes #993 (add --null-data flag)
* Closes #997 (--passthru works with --replace)

* Fixes #2 (memory maps and context handling work)
* Fixes #200 (ripgrep stops when pipe is closed)
* Fixes #389 (more intuitive `-w/--word-regexp`)
* Fixes #643 (detection of stdin on Windows is better)
* Fixes #441, Fixes #690, Fixes #980 (empty matching lines are weird)
* Fixes #764 (coalesce color escapes)
* Fixes #922 (memory maps failing is no big deal)
* Fixes #937 (color escapes no longer used for empty matches)
* Fixes #940 (--passthru does not impact exit status)
* Fixes #1013 (show runtime CPU features in --version output)
 2018-08-20 07:10:19 -04:00
Andrew Gallant
eb184d7711 tests: re-tool integration tests 
This basically rewrites every integration test. We reduce the amount of
magic involved here in terms of which arguments are being passed to
ripgrep processes. To make up for the boiler plate saved by the magic,
we make the Dir (formerly WorkDir) type a bit nicer to use, along with a
new TestCommand that wraps a std::process::Command. In exchange, we get
tests that are easier to read and write.

We also run every test with the `--pcre2` flag to make sure that works,
when PCRE2 is available.
 2018-08-20 07:10:19 -04:00
Andrew Gallant
bb110c1ebe ripgrep: migrate to libripgrep 
This commit does the work to delete the old `grep` crate and effectively
rewrite most of ripgrep core to use the new libripgrep crates. The new
`grep` crate is now a facade that collects the various crates that make
up libripgrep.

The most complex part of ripgrep core is now arguably the translation
between command line parameters and the library options, which is
ultimately where we want to be.
 2018-08-20 07:10:19 -04:00
Andrew Gallant
d9ca529356 libripgrep: initial commit introducing libripgrep 
libripgrep is not any one library, but rather, a collection of libraries
that roughly separate the following key distinct phases in a grep
implementation:

  1. Pattern matching (e.g., by a regex engine).
  2. Searching a file using a pattern matcher.
  3. Printing results.

Ultimately, both (1) and (3) are defined by de-coupled interfaces, of
which there may be multiple implementations. Namely, (1) is satisfied by
the `Matcher` trait in the `grep-matcher` crate and (3) is satisfied by
the `Sink` trait in the `grep2` crate. The searcher (2) ties everything
together and finds results using a matcher and reports those results
using a `Sink` implementation.

Closes #162
 2018-08-20 07:10:19 -04:00
Sylvestre Ledru
0958837ee1 readme: ripgrep is available in Debian Buster 
PR #1016
 2018-08-17 06:35:43 -04:00
Andrew Gallant
94be3bd4bb grep: remove senseless test 
It was pulling in a sizable data file and doesn't appear to be testing
anything meaningful that isn't covered by a variety of other tests.
 2018-08-15 19:52:50 -04:00
woky
deb1de6e1e ignore/types: add *.sbt to scala type 
Sbt is currently most used Scala build tool which uses
*.sbt files, which are basically Scala.

PR #1010
 2018-08-14 06:29:27 -07:00
Vanessa McHale
6afdf15d85 ignore/types: add Idris, Dhall and ATS 
And also improve Haskell detection.

PR #1007
 2018-08-07 13:10:19 -04:00
Jonatan Hamberg
6cda7b24e9 readme: update debian link to 0.9.0 
PR #1006
 2018-08-07 07:50:08 -04:00
llogiq
ad9befbc1d deps: update bytecount to 0.3.2 
PR #1003
 2018-08-06 06:44:16 -04:00
121 changed files with 13389 additions and 5096 deletions
Expand all files Collapse all files

99
.github/workflows/ci.yml vendored Normal file
View File

@@ -0,0 +1,99 @@
# test
name: ci
on:
pull_request:
push:
branches:
- master
schedule:
- cron: '00 01 * * *'
jobs:
test:
name: test
runs-on: ${{ matrix.os }}
strategy:
matrix:
# The docs seem to suggest that we can have a matrix with just an
# include directive, but it result in a "matrix must define at least
# one vector" error in the CI system.
build:
- pinned-glibc
- pinned-musl
- stable
- beta
# We test musl with nightly because every once in a while, this will
# catch an upstream regression.
- nightly-glibc
- nightly-musl
- macos
- win-msvc-32
- win-msvc-64
- win-gnu-32
- win-gnu-64
include:
# - build: pinned-glibc
# os: ubuntu-18.04
# rust: 1.34.0
# target: x86_64-unknown-linux-gnu
- build: pinned-musl
os: ubuntu-18.04
rust: 1.34.0
target: x86_64-unknown-linux-musl
- build: stable
os: ubuntu-18.04
rust: stable
target: x86_64-unknown-linux-gnu
# - build: beta
# os: ubuntu-18.04
# rust: beta
# target: x86_64-unknown-linux-gnu
# - build: nightly-glibc
# os: ubuntu-18.04
# rust: nightly
# target: x86_64-unknown-linux-gnu
# - build: nightly-musl
# os: ubuntu-18.04
# rust: nightly
# target: x86_64-unknown-linux-musl
# - build: macos
# os: macOS-10.14
# rust: stable
# target: x86_64-apple-darwin
# - build: win-msvc-32
# os: windows-2019
# rust: stable
# target: i686-pc-windows-msvc
# - build: win-msvc-64
# os: windows-2019
# rust: stable
# target: x86_64-pc-windows-msvc
# - build: win-gnu-32
# os: windows-2019
# rust: stable-i686-gnu
# target: i686-pc-windows-gnu
# - build: win-gnu-64
# os: windows-2019
# rust: stable-x86_64-gnu
# target: x86_64-pc-windows-gnu
steps:
- name: Checkout repository
uses: actions/checkout@v1
with:
fetch-depth: 1
- name: Install Rust
uses: hecrj/setup-rust-action@v1
with:
rust-version: ${{ matrix.rust }}
- name: Install Rust Target
run: rustup target add ${{ matrix.target }}
# - name: Install musl-gcc
# if: contains(matrix.target, 'musl')
# run: |
# apt-get install musl-tools
- name: Build everything
run: cargo build --verbose --target ${{ matrix.target }} --all --features pcre2
- name: Test zsh auto-completions
if: matrix.build == 'stable'
run: ./ci/test_complete.sh
- name: Run tests
run: cargo test --verbose --target ${{ matrix.target }} --all --features pcre2

12
.travis.yml
View File

@@ -1,4 +1,5 @@
language: rust
dist: xenial
env:
global:
- PROJECT_NAME: ripgrep
@@ -17,6 +18,8 @@ addons:
# Needed for testing decompression search.
- xz-utils
- liblz4-tool
# For building MUSL static builds on Linux.
- musl-tools
matrix:
fast_finish: true
include:
@@ -60,13 +63,13 @@ matrix:
# Minimum Rust supported channel. We enable these to make sure ripgrep
# continues to work on the advertised minimum Rust version.
- os: linux
rust: 1.23.0
rust: 1.34.0
env: TARGET=x86_64-unknown-linux-gnu
- os: linux
rust: 1.23.0
rust: 1.34.0
env: TARGET=x86_64-unknown-linux-musl
- os: linux
rust: 1.23.0
rust: 1.34.0
env: TARGET=arm-unknown-linux-gnueabihf GCC_VERSION=4.8
addons:
apt:
@@ -91,7 +94,7 @@ deploy:
skip_cleanup: true
on:
condition: $TRAVIS_RUST_VERSION = nightly
branch: master
branch: master # i guess we do need this after all?
tags: true
api_key:
secure: "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"
@@ -99,7 +102,6 @@ branches:
only:
# Pushes and PR to the master branch
- master
- ag/libripgrep
# Ruby regex to match tags. Required, or travis won't trigger deploys when
# a new tag is pushed.
- /^\d+\.\d+\.\d+.*$/

268
CHANGELOG.md
View File

@@ -1,3 +1,269 @@
TBD
===
TODO
Bug fixes:
* [BUG #1335](https://github.com/BurntSushi/ripgrep/issues/1335):
Fixes a performance bug when searching plain text files with very long lines.
11.0.2 (2019-08-01)
===================
ripgrep 11.0.2 is a new patch release that fixes a few bugs, including a
performance regression and a matching bug when using the `-F/--fixed-strings`
flag.
Feature enhancements:
* [FEATURE #1293](https://github.com/BurntSushi/ripgrep/issues/1293):
Added `--glob-case-insensitive` flag that makes `--glob` behave as `--iglob`.
Bug fixes:
* [BUG #1246](https://github.com/BurntSushi/ripgrep/issues/1246):
Add translations to README, starting with an unofficial Chinese translation.
* [BUG #1259](https://github.com/BurntSushi/ripgrep/issues/1259):
Fix bug where the last byte of a `-f file` was stripped if it wasn't a `\n`.
* [BUG #1261](https://github.com/BurntSushi/ripgrep/issues/1261):
Document that no error is reported when searching for `\n` with `-P/--pcre2`.
* [BUG #1284](https://github.com/BurntSushi/ripgrep/issues/1284):
Mention `.ignore` and `.rgignore` more prominently in the README.
* [BUG #1292](https://github.com/BurntSushi/ripgrep/issues/1292):
Fix bug where `--with-filename` was sometimes enabled incorrectly.
* [BUG #1268](https://github.com/BurntSushi/ripgrep/issues/1268):
Fix major performance regression in GitHub `x86_64-linux` binary release.
* [BUG #1302](https://github.com/BurntSushi/ripgrep/issues/1302):
Show better error messages when a non-existent preprocessor command is given.
* [BUG #1334](https://github.com/BurntSushi/ripgrep/issues/1334):
Fix match regression with `-F` flag when patterns contain meta characters.
11.0.1 (2019-04-16)
===================
ripgrep 11.0.1 is a new patch release that fixes a search regression introduced
in the previous 11.0.0 release. In particular, ripgrep can enter an infinite
loop for some search patterns when searching invalid UTF-8.
Bug fixes:
* [BUG #1247](https://github.com/BurntSushi/ripgrep/issues/1247):
Fix search bug that can cause ripgrep to enter an infinite loop.
11.0.0 (2019-04-15)
===================
ripgrep 11 is a new major version release of ripgrep that contains many bug
fixes, some performance improvements and a few feature enhancements. Notably,
ripgrep's user experience for binary file filtering has been improved. See the
[guide's new section on binary data](GUIDE.md#binary-data) for more details.
This release also marks a change in ripgrep's versioning. Where as the previous
version was `0.10.0`, this version is `11.0.0`. Moving forward, ripgrep's
major version will be increased a few times per year. ripgrep will continue to
be conservative with respect to backwards compatibility, but may occasionally
introduce breaking changes, which will always be documented in this CHANGELOG.
See [issue 1172](https://github.com/BurntSushi/ripgrep/issues/1172) for a bit
more detail on why this versioning change was made.
This release increases the **minimum supported Rust version** from 1.28.0 to
1.34.0.
**BREAKING CHANGES**:
* ripgrep has tweaked its exit status codes to be more like GNU grep's. Namely,
if a non-fatal error occurs during a search, then ripgrep will now always
emit a `2` exit status code, regardless of whether a match is found or not.
Previously, ripgrep would only emit a `2` exit status code for a catastrophic
error (e.g., regex syntax error). One exception to this is if ripgrep is run
with `-q/--quiet`. In that case, if an error occurs and a match is found,
then ripgrep will exit with a `0` exit status code.
* Supplying the `-u/--unrestricted` flag three times is now equivalent to
supplying `--no-ignore --hidden --binary`. Previously, `-uuu` was equivalent
to `--no-ignore --hidden --text`. The difference is that `--binary` disables
binary file filtering without potentially dumping binary data into your
terminal. That is, `rg -uuu foo` should now be equivalent to `grep -r foo`.
* The `avx-accel` feature of ripgrep has been removed since it is no longer
necessary. All uses of AVX in ripgrep are now enabled automatically via
runtime CPU feature detection. The `simd-accel` feature does remain available
(only for enabling SIMD for transcoding), however, it does increase
compilation times substantially at the moment.
Performance improvements:
* [PERF #497](https://github.com/BurntSushi/ripgrep/issues/497),
[PERF #838](https://github.com/BurntSushi/ripgrep/issues/838):
Make `rg -F -f dictionary-of-literals` much faster.
Feature enhancements:
* Added or improved file type filtering for Apache Thrift, ASP, Bazel, Brotli,
BuildStream, bzip2, C, C++, Cython, gzip, Java, Make, Postscript, QML, Tex,
XML, xz, zig and zstd.
* [FEATURE #855](https://github.com/BurntSushi/ripgrep/issues/855):
Add `--binary` flag for disabling binary file filtering.
* [FEATURE #1078](https://github.com/BurntSushi/ripgrep/pull/1078):
Add `--max-columns-preview` flag for showing a preview of long lines.
* [FEATURE #1099](https://github.com/BurntSushi/ripgrep/pull/1099):
Add support for Brotli and Zstd to the `-z/--search-zip` flag.
* [FEATURE #1138](https://github.com/BurntSushi/ripgrep/pull/1138):
Add `--no-ignore-dot` flag for ignoring `.ignore` files.
* [FEATURE #1155](https://github.com/BurntSushi/ripgrep/pull/1155):
Add `--auto-hybrid-regex` flag for automatically falling back to PCRE2.
* [FEATURE #1159](https://github.com/BurntSushi/ripgrep/pull/1159):
ripgrep's exit status logic should now match GNU grep. See updated man page.
* [FEATURE #1164](https://github.com/BurntSushi/ripgrep/pull/1164):
Add `--ignore-file-case-insensitive` for case insensitive ignore globs.
* [FEATURE #1185](https://github.com/BurntSushi/ripgrep/pull/1185):
Add `-I` flag as a short option for the `--no-filename` flag.
* [FEATURE #1207](https://github.com/BurntSushi/ripgrep/pull/1207):
Add `none` value to `-E/--encoding` to forcefully disable all transcoding.
* [FEATURE da9d7204](https://github.com/BurntSushi/ripgrep/commit/da9d7204):
Add `--pcre2-version` for querying showing PCRE2 version information.
Bug fixes:
* [BUG #306](https://github.com/BurntSushi/ripgrep/issues/306),
[BUG #855](https://github.com/BurntSushi/ripgrep/issues/855):
Improve the user experience for ripgrep's binary file filtering.
* [BUG #373](https://github.com/BurntSushi/ripgrep/issues/373),
[BUG #1098](https://github.com/BurntSushi/ripgrep/issues/1098):
`**` is now accepted as valid syntax anywhere in a glob.
* [BUG #916](https://github.com/BurntSushi/ripgrep/issues/916):
ripgrep no longer hangs when searching `/proc` with a zombie process present.
* [BUG #1052](https://github.com/BurntSushi/ripgrep/issues/1052):
Fix bug where ripgrep could panic when transcoding UTF-16 files.
* [BUG #1055](https://github.com/BurntSushi/ripgrep/issues/1055):
Suggest `-U/--multiline` when a pattern contains a `\n`.
* [BUG #1063](https://github.com/BurntSushi/ripgrep/issues/1063):
Always strip a BOM if it's present, even for UTF-8.
* [BUG #1064](https://github.com/BurntSushi/ripgrep/issues/1064):
Fix inner literal detection that could lead to incorrect matches.
* [BUG #1079](https://github.com/BurntSushi/ripgrep/issues/1079):
Fixes a bug where the order of globs could result in missing a match.
* [BUG #1089](https://github.com/BurntSushi/ripgrep/issues/1089):
Fix another bug where ripgrep could panic when transcoding UTF-16 files.
* [BUG #1091](https://github.com/BurntSushi/ripgrep/issues/1091):
Add note about inverted flags to the man page.
* [BUG #1093](https://github.com/BurntSushi/ripgrep/pull/1093):
Fix handling of literal slashes in gitignore patterns.
* [BUG #1095](https://github.com/BurntSushi/ripgrep/issues/1095):
Fix corner cases involving the `--crlf` flag.
* [BUG #1101](https://github.com/BurntSushi/ripgrep/issues/1101):
Fix AsciiDoc escaping for man page output.
* [BUG #1103](https://github.com/BurntSushi/ripgrep/issues/1103):
Clarify what `--encoding auto` does.
* [BUG #1106](https://github.com/BurntSushi/ripgrep/issues/1106):
`--files-with-matches` and `--files-without-match` work with one file.
* [BUG #1121](https://github.com/BurntSushi/ripgrep/issues/1121):
Fix bug that was triggering Windows antimalware when using the `--files`
flag.
* [BUG #1125](https://github.com/BurntSushi/ripgrep/issues/1125),
[BUG #1159](https://github.com/BurntSushi/ripgrep/issues/1159):
ripgrep shouldn't panic for `rg -h | rg` and should emit correct exit status.
* [BUG #1144](https://github.com/BurntSushi/ripgrep/issues/1144):
Fixes a bug where line numbers could be wrong on big-endian machines.
* [BUG #1154](https://github.com/BurntSushi/ripgrep/issues/1154):
Windows files with "hidden" attribute are now treated as hidden.
* [BUG #1173](https://github.com/BurntSushi/ripgrep/issues/1173):
Fix handling of `**` patterns in gitignore files.
* [BUG #1174](https://github.com/BurntSushi/ripgrep/issues/1174):
Fix handling of repeated `**` patterns in gitignore files.
* [BUG #1176](https://github.com/BurntSushi/ripgrep/issues/1176):
Fix bug where `-F`/`-x` weren't applied to patterns given via `-f`.
* [BUG #1189](https://github.com/BurntSushi/ripgrep/issues/1189):
Document cases where ripgrep may use a lot of memory.
* [BUG #1203](https://github.com/BurntSushi/ripgrep/issues/1203):
Fix a matching bug related to the suffix literal optimization.
* [BUG 8f14cb18](https://github.com/BurntSushi/ripgrep/commit/8f14cb18):
Increase the default stack size for PCRE2's JIT.
0.10.0 (2018-09-07)
===================
This is a new minor version release of ripgrep that contains some major new
features, a huge number of bug fixes, and is the first release based on
libripgrep. The entirety of ripgrep's core search and printing code has been
rewritten and generalized so that anyone can make use of it.
Major new features include PCRE2 support, multi-line search and a JSON output
format.
**BREAKING CHANGES**:
* The minimum version required to compile Rust has now changed to track the
latest stable version of Rust. Patch releases will continue to compile with
the same version of Rust as the previous patch release, but new minor
versions will use the current stable version of the Rust compile as its
minimum supported version.
* The match semantics of `-w/--word-regexp` have changed slightly. They used
to be `\b(?:<your pattern>)\b`, but now it's
`(?:^|\W)(?:<your pattern>)(?:$|\W)`. This matches the behavior of GNU grep
and is believed to be closer to the intended semantics of the flag. See
[#389](https://github.com/BurntSushi/ripgrep/issues/389) for more details.
Feature enhancements:
* [FEATURE #162](https://github.com/BurntSushi/ripgrep/issues/162):
libripgrep is now a thing. The primary crate is
[`grep`](https://docs.rs/grep).
* [FEATURE #176](https://github.com/BurntSushi/ripgrep/issues/176):
Add `-U/--multiline` flag that permits matching over multiple lines.
* [FEATURE #188](https://github.com/BurntSushi/ripgrep/issues/188):
Add `-P/--pcre2` flag that gives support for look-around and backreferences.
* [FEATURE #244](https://github.com/BurntSushi/ripgrep/issues/244):
Add `--json` flag that prints results in a JSON Lines format.
* [FEATURE #321](https://github.com/BurntSushi/ripgrep/issues/321):
Add `--one-file-system` flag to skip directories on different file systems.
* [FEATURE #404](https://github.com/BurntSushi/ripgrep/issues/404):
Add `--sort` and `--sortr` flag for more sorting. Deprecate `--sort-files`.
* [FEATURE #416](https://github.com/BurntSushi/ripgrep/issues/416):
Add `--crlf` flag to permit `$` to work with carriage returns on Windows.
* [FEATURE #917](https://github.com/BurntSushi/ripgrep/issues/917):
The `--trim` flag strips prefix whitespace from all lines printed.
* [FEATURE #993](https://github.com/BurntSushi/ripgrep/issues/993):
Add `--null-data` flag, which makes ripgrep use NUL as a line terminator.
* [FEATURE #997](https://github.com/BurntSushi/ripgrep/issues/997):
The `--passthru` flag now works with the `--replace` flag.
* [FEATURE #1038-1](https://github.com/BurntSushi/ripgrep/issues/1038):
Add `--line-buffered` and `--block-buffered` for forcing a buffer strategy.
* [FEATURE #1038-2](https://github.com/BurntSushi/ripgrep/issues/1038):
Add `--pre-glob` for filtering files through the `--pre` flag.
Bug fixes:
* [BUG #2](https://github.com/BurntSushi/ripgrep/issues/2):
Searching with non-zero context can now use memory maps if appropriate.
* [BUG #200](https://github.com/BurntSushi/ripgrep/issues/200):
ripgrep will now stop correctly when its output pipe is closed.
* [BUG #389](https://github.com/BurntSushi/ripgrep/issues/389):
The `-w/--word-regexp` flag now works more intuitively.
* [BUG #643](https://github.com/BurntSushi/ripgrep/issues/643):
Detection of readable stdin has improved on Windows.
* [BUG #441](https://github.com/BurntSushi/ripgrep/issues/441),
[BUG #690](https://github.com/BurntSushi/ripgrep/issues/690),
[BUG #980](https://github.com/BurntSushi/ripgrep/issues/980):
Matching empty lines now works correctly in several corner cases.
* [BUG #764](https://github.com/BurntSushi/ripgrep/issues/764):
Color escape sequences now coalesce, which reduces output size.
* [BUG #842](https://github.com/BurntSushi/ripgrep/issues/842):
Add man page to binary Debian package.
* [BUG #922](https://github.com/BurntSushi/ripgrep/issues/922):
ripgrep is now more robust with respect to memory maps failing.
* [BUG #937](https://github.com/BurntSushi/ripgrep/issues/937):
Color escape sequences are no longer emitted for empty matches.
* [BUG #940](https://github.com/BurntSushi/ripgrep/issues/940):
Context from the `--passthru` flag should not impact process exit status.
* [BUG #984](https://github.com/BurntSushi/ripgrep/issues/984):
Fixes bug in `ignore` crate where first path was always treated as a symlink.
* [BUG #990](https://github.com/BurntSushi/ripgrep/issues/990):
Read stderr asynchronously when running a process.
* [BUG #1013](https://github.com/BurntSushi/ripgrep/issues/1013):
Add compile time and runtime CPU features to `--version` output.
* [BUG #1028](https://github.com/BurntSushi/ripgrep/pull/1028):
Don't complete bare pattern after `-f` in zsh.
0.9.0 (2018-08-03)
==================
This is a new minor version release of ripgrep that contains some minor new
@@ -31,7 +297,7 @@ multi-line search support and a JSON output format.
Feature enhancements:
* Added or improved file type filtering for Android, Bazel, Fuschia, Haskell,
* Added or improved file type filtering for Android, Bazel, Fuchsia, Haskell,
Java and Puppet.
* [FEATURE #411](https://github.com/BurntSushi/ripgrep/issues/411):
Add a `--stats` flag, which emits aggregate statistics after search results.

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85
Cargo.toml
View File

@@ -1,11 +1,11 @@
[package]
name = "ripgrep"
version = "0.9.0" #:version
version = "11.0.2" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
ripgrep is a line-oriented search tool that recursively searches your current
directory for a regex pattern while respecting your gitignore rules. ripgrep
has first class support on Windows, macOS and Linux
has first class support on Windows, macOS and Linux.
"""
documentation = "https://github.com/BurntSushi/ripgrep"
homepage = "https://github.com/BurntSushi/ripgrep"
@@ -17,6 +17,7 @@ license = "Unlicense OR MIT"
exclude = ["HomebrewFormula"]
build = "build.rs"
autotests = false
edition = "2018"
[badges]
travis-ci = { repository = "BurntSushi/ripgrep" }
@@ -33,42 +34,78 @@ path = "tests/tests.rs"
[workspace]
members = [
"grep", "globset", "ignore",
"grep-matcher", "grep-printer", "grep-regex", "grep-searcher",
"globset",
"grep",
"grep-cli",
"grep-matcher",
"grep-pcre2",
"grep-printer",
"grep-regex",
"grep-searcher",
"ignore",
]
[dependencies]
atty = "0.2.11"
globset = { version = "0.4.0", path = "globset" }
grep = { version = "0.2.0", path = "grep" }
ignore = { version = "0.4.0", path = "ignore" }
lazy_static = "1"
log = "0.4"
num_cpus = "1"
regex = "1"
same-file = "1"
termcolor = "1"
bstr = "0.2.0"
grep = { version = "0.2.4", path = "grep" }
ignore = { version = "0.4.7", path = "ignore" }
lazy_static = "1.1.0"
log = "0.4.5"
num_cpus = "1.8.0"
regex = "1.0.5"
serde_json = "1.0.23"
termcolor = "1.0.3"
[dependencies.clap]
version = "2.29.4"
version = "2.32.0"
default-features = false
features = ["suggestions", "color"]
features = ["suggestions"]
[target.'cfg(windows)'.dependencies.winapi]
version = "0.3"
features = ["std", "winnt"]
[target.'cfg(all(target_env = "musl", target_pointer_width = "64"))'.dependencies.jemallocator]
version = "0.3.0"
[build-dependencies]
lazy_static = "1"
lazy_static = "1.1.0"
[build-dependencies.clap]
version = "2.29.4"
version = "2.32.0"
default-features = false
features = ["suggestions", "color"]
features = ["suggestions"]
[dev-dependencies]
serde = "1.0.77"
serde_derive = "1.0.77"
[features]
avx-accel = ["grep/avx-accel"]
simd-accel = ["grep/simd-accel"]
pcre2 = ["grep/pcre2"]
[profile.release]
debug = true
debug = 1
[package.metadata.deb]
features = ["pcre2"]
section = "utils"
assets = [
["target/release/rg", "usr/bin/", "755"],
["COPYING", "usr/share/doc/ripgrep/", "644"],
["LICENSE-MIT", "usr/share/doc/ripgrep/", "644"],
["UNLICENSE", "usr/share/doc/ripgrep/", "644"],
["CHANGELOG.md", "usr/share/doc/ripgrep/CHANGELOG", "644"],
["README.md", "usr/share/doc/ripgrep/README", "644"],
["FAQ.md", "usr/share/doc/ripgrep/FAQ", "644"],
# The man page is automatically generated by ripgrep's build process, so
# this file isn't actually commited. Instead, to create a dpkg, either
# create a deployment/deb directory and copy the man page to it, or use the
# 'ci/build_deb.sh' script.
["deployment/deb/rg.1", "usr/share/man/man1/rg.1", "644"],
# Similarly for shell completions.
["deployment/deb/rg.bash", "usr/share/bash-completion/completions/rg", "644"],
["deployment/deb/rg.fish", "usr/share/fish/completions/rg.fish", "644"],
["deployment/deb/_rg", "usr/share/zsh/vendor-completions/", "644"],
]
extended-description = """\
ripgrep (rg) recursively searches your current directory for a regex pattern.
By default, ripgrep will respect your .gitignore and automatically skip hidden
files/directories and binary files.
"""

2
Cross.toml Normal file
View File

@@ -0,0 +1,2 @@
[target.x86_64-unknown-linux-musl]
image = "burntsushi/x86_64-unknown-linux-musl:v0.1.14"

349
FAQ.md
View File

@@ -16,6 +16,7 @@
* [How do I get around the regex size limit?](#size-limit)
* [How do I make the `-f/--file` flag faster?](#dfa-size)
* [How do I make the output look like The Silver Searcher's output?](#silver-searcher-output)
* [Why does ripgrep get slower when I enabled PCRE2 regexes?](#pcre2-slow)
* [When I run `rg`, why does it execute some other command?](#rg-other-cmd)
* [How do I create an alias for ripgrep on Windows?](#rg-alias-windows)
* [How do I create a PowerShell profile?](#powershell-profile)
@@ -117,7 +118,7 @@ from run to run of ripgrep.
The only way to make the order of results consistent is to ask ripgrep to
sort the output. Currently, this will disable all parallelism. (On smaller
repositories, you might not notice much of a performance difference!) You
can achieve this with the `--sort-files` flag.
can achieve this with the `--sort path` flag.
There is more discussion on this topic here:
https://github.com/BurntSushi/ripgrep/issues/152
@@ -135,10 +136,10 @@ How do I search compressed files?
</h3>
ripgrep's `-z/--search-zip` flag will cause it to search compressed files
automatically. Currently, this supports gzip, bzip2, lzma, lz4 and xz only and
requires the corresponding `gzip`, `bzip2` and `xz` binaries to be installed on
your system. (That is, ripgrep does decompression by shelling out to another
process.)
automatically. Currently, this supports gzip, bzip2, xz, lzma, lz4, Brotli and
Zstd. Each of these requires requires the corresponding `gzip`, `bzip2`, `xz`,
`lz4`, `brotli` and `zstd` binaries to be installed on your system. (That is,
ripgrep does decompression by shelling out to another process.)
ripgrep currently does not search archive formats, so `*.tar.gz` files, for
example, are skipped.
@@ -148,22 +149,45 @@ example, are skipped.
How do I search over multiple lines?
</h3>
This isn't currently possible. ripgrep is fundamentally a line-oriented search
tool. With that said,
[multiline search is a planned opt-in feature](https://github.com/BurntSushi/ripgrep/issues/176).
The `-U/--multiline` flag enables ripgrep to report results that span over
multiple lines.
<h3 name="fancy">
How do I use lookaround and/or backreferences?
</h3>
This isn't currently possible. ripgrep uses finite automata to implement
regular expression search, and in turn, guarantees linear time searching on all
inputs. It is difficult to efficiently support lookaround and backreferences in
finite automata engines, so ripgrep does not provide these features.
ripgrep's default regex engine does not support lookaround or backreferences.
This is primarily because the default regex engine is implemented using finite
state machines in order to guarantee a linear worst case time complexity on all
inputs. Backreferences are not possible to implement in this paradigm, and
lookaround appears difficult to do efficiently.
If a production quality regular expression engine with these features is ever
written in Rust, then it is possible ripgrep will provide it as an opt-in
However, ripgrep optionally supports using PCRE2 as the regex engine instead of
the default one based on finite state machines. You can enable PCRE2 with the
`-P/--pcre2` flag. For example, in the root of the ripgrep repo, you can easily
find all palindromes:
```
$ rg -P '(\w{10})\1'
tests/misc.rs
483: cmd.arg("--max-filesize").arg("44444444444444444444");
globset/src/glob.rs
1206: matches!(match7, "a*a*a*a*a*a*a*a*a", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
```
If your version of ripgrep doesn't support PCRE2, then you'll get an error
message when you try to use the `-P/--pcre2` flag:
```
$ rg -P '(\w{10})\1'
PCRE2 is not available in this build of ripgrep
```
Most of the releases distributed by the ripgrep project here on GitHub will
come bundled with PCRE2 enabled. If you installed ripgrep through a different
means (like your system's package manager), then please reach out to the
maintainer of that package to see whether it's possible to enable the PCRE2
feature.
@@ -368,6 +392,301 @@ $ RIPGREP_CONFIG_PATH=$HOME/.config/ripgrep/rc rg foo
```
<h3 name="pcre2-slow">
Why does ripgrep get slower when I enable PCRE2 regexes?
</h3>
When you use the `--pcre2` (`-P` for short) flag, ripgrep will use the PCRE2
regex engine instead of the default. Both regex engines are quite fast,
but PCRE2 provides a number of additional features such as look-around and
backreferences that many enjoy using. This is largely because PCRE2 uses
a backtracking implementation where as the default regex engine uses a finite
automaton based implementation. The former provides the ability to add lots of
bells and whistles over the latter, but the latter executes with worst case
linear time complexity.
With that out of the way, if you've used `-P` with ripgrep, you may have
noticed that it can be slower. The reasons for why this is are quite complex,
and they are complex because the optimizations that ripgrep uses to implement
fast search are complex.
The task ripgrep has before it is somewhat simple; all it needs to do is search
a file for occurrences of some pattern and then print the lines containing
those occurrences. The problem lies in what is considered a valid match and how
exactly we read the bytes from a file.
In terms of what is considered a valid match, remember that ripgrep will only
report matches spanning a single line by default. The problem here is that
some patterns can match across multiple lines, and ripgrep needs to prevent
that from happening. For example, `foo\sbar` will match `foo\nbar`. The most
obvious way to achieve this is to read the data from a file, and then apply
the pattern search to that data for each line. The problem with this approach
is that it can be quite slow; it would be much faster to let the pattern
search across as much data as possible. It's faster because it gets rid of the
overhead of finding the boundaries of every line, and also because it gets rid
of the overhead of starting and stopping the pattern search for every single
line. (This is operating under the general assumption that matching lines are
much rarer than non-matching lines.)
It turns out that we can use the faster approach by applying a very simple
restriction to the pattern: *statically prevent* the pattern from matching
through a `\n` character. Namely, when given a pattern like `foo\sbar`,
ripgrep will remove `\n` from the `\s` character class automatically. In some
cases, a simple removal is not so easy. For example, ripgrep will return an
error when your pattern includes a `\n` literal:
```
$ rg '\n'
the literal '"\n"' is not allowed in a regex
```
So what does this have to do with PCRE2? Well, ripgrep's default regex engine
exposes APIs for doing syntactic analysis on the pattern in a way that makes
it quite easy to strip `\n` from the pattern (or otherwise detect it and report
an error if stripping isn't possible). PCRE2 seemingly does not provide a
similar API, so ripgrep does not do any stripping when PCRE2 is enabled. This
forces ripgrep to use the "slow" search strategy of searching each line
individually.
OK, so if enabling PCRE2 slows down the default method of searching because it
forces matches to be limited to a single line, then why is PCRE2 also sometimes
slower when performing multiline searches? Well, that's because there are
*multiple* reasons why using PCRE2 in ripgrep can be slower than the default
regex engine. This time, blame PCRE2's Unicode support, which ripgrep enables
by default. In particular, PCRE2 cannot simultaneously enable Unicode support
and search arbitrary data. That is, when PCRE2's Unicode support is enabled,
the data **must** be valid UTF-8 (to do otherwise is to invoke undefined
behavior). This is in contrast to ripgrep's default regex engine, which can
enable Unicode support and still search arbitrary data. ripgrep's default
regex engine simply won't match invalid UTF-8 for a pattern that can otherwise
only match valid UTF-8. Why doesn't PCRE2 do the same? This author isn't
familiar with its internals, so we can't comment on it here.
The bottom line here is that we can't enable PCRE2's Unicode support without
simultaneously incurring a performance penalty for ensuring that we are
searching valid UTF-8. In particular, ripgrep will transcode the contents
of each file to UTF-8 while replacing invalid UTF-8 data with the Unicode
replacement codepoint. ripgrep then disables PCRE2's own internal UTF-8
checking, since we've guaranteed the data we hand it will be valid UTF-8. The
reason why ripgrep takes this approach is because if we do hand PCRE2 invalid
UTF-8, then it will report a match error if it comes across an invalid UTF-8
sequence. This is not good news for ripgrep, since it will stop it from
searching the rest of the file, and will also print potentially undesirable
error messages to users.
All right, the above is a lot of information to swallow if you aren't already
familiar with ripgrep internals. Let's make this concrete with some examples.
First, let's get some data big enough to magnify the performance differences:
```
$ curl -O 'https://burntsushi.net/stuff/subtitles2016-sample.gz'
$ gzip -d subtitles2016-sample
$ md5sum subtitles2016-sample
e3cb796a20bbc602fbfd6bb43bda45f5 subtitles2016-sample
```
To search this data, we will use the pattern `^\w{42}$`, which contains exactly
one hit in the file and has no literals. Having no literals is important,
because it ensures that the regex engine won't use literal optimizations to
speed up the search. In other words, it lets us reason coherently about the
actual task that the regex engine is performing.
Let's now walk through a few examples in light of the information above. First,
let's consider the default search using ripgrep's default regex engine and
then the same search with PCRE2:
```
$ time rg '^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.783s
user 0m1.731s
sys 0m0.051s
$ time rg -P '^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m2.458s
user 0m2.419s
sys 0m0.038s
```
In this particular example, both pattern searches are using a Unicode aware
`\w` character class and both are counting lines in order to report line
numbers. The key difference here is that the first search will not search
line by line, but the second one will. We can observe which strategy ripgrep
uses by passing the `--trace` flag:
```
$ rg '^\w{42}$' subtitles2016-sample --trace
[... snip ...]
TRACE|grep_searcher::searcher|grep-searcher/src/searcher/mod.rs:622: Some("subtitles2016-sample"): searching via memory map
TRACE|grep_searcher::searcher|grep-searcher/src/searcher/mod.rs:712: slice reader: searching via slice-by-line strategy
TRACE|grep_searcher::searcher::core|grep-searcher/src/searcher/core.rs:61: searcher core: will use fast line searcher
[... snip ...]
$ rg -P '^\w{42}$' subtitles2016-sample --trace
[... snip ...]
TRACE|grep_searcher::searcher|grep-searcher/src/searcher/mod.rs:622: Some("subtitles2016-sample"): searching via memory map
TRACE|grep_searcher::searcher|grep-searcher/src/searcher/mod.rs:705: slice reader: needs transcoding, using generic reader
TRACE|grep_searcher::searcher|grep-searcher/src/searcher/mod.rs:685: generic reader: searching via roll buffer strategy
TRACE|grep_searcher::searcher::core|grep-searcher/src/searcher/core.rs:63: searcher core: will use slow line searcher
[... snip ...]
```
The first says it is using the "fast line searcher" where as the latter says
it is using the "slow line searcher." The latter also shows that we are
decoding the contents of the file, which also impacts performance.
Interestingly, in this case, the pattern does not match a `\n` and the file
we're searching is valid UTF-8, so neither the slow line-by-line search
strategy nor the decoding are necessary. We could fix the former issue with
better PCRE2 introspection APIs. We can actually fix the latter issue with
ripgrep's `--no-encoding` flag, which prevents the automatic UTF-8 decoding,
but will enable PCRE2's own UTF-8 validity checking. Unfortunately, it's slower
in my build of ripgrep:
```
$ time rg -P '^\w{42}$' subtitles2016-sample --no-encoding
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m3.074s
user 0m3.021s
sys 0m0.051s
```
(Tip: use the `--trace` flag to verify that no decoding in ripgrep is
happening.)
A possible reason why PCRE2's UTF-8 checking is slower is because it might
not be better than the highly optimized UTF-8 checking routines found in the
[`encoding_rs`](https://github.com/hsivonen/encoding_rs) library, which is what
ripgrep uses for UTF-8 decoding. Moreover, my build of ripgrep enables
`encoding_rs`'s SIMD optimizations, which may be in play here.
Also, note that using the `--no-encoding` flag can cause PCRE2 to report
invalid UTF-8 errors, which causes ripgrep to stop searching the file:
```
$ cat invalid-utf8
foobar
$ xxd invalid-utf8
00000000: 666f 6fff 6261 720a foo.bar.
$ rg foo invalid-utf8
1:foobar
$ rg -P foo invalid-utf8
1:foo<6F>bar
$ rg -P foo invalid-utf8 --no-encoding
invalid-utf8: PCRE2: error matching: UTF-8 error: illegal byte (0xfe or 0xff)
```
All right, so at this point, you might think that we could remove the penalty
for line-by-line searching by enabling multiline search. After all, our
particular pattern can't match across multiple lines anyway, so we'll still get
the results we want. Let's try it:
```
$ time rg -U '^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.803s
user 0m1.748s
sys 0m0.054s
$ time rg -P -U '^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m2.962s
user 0m2.246s
sys 0m0.713s
```
Search times remain the same with the default regex engine, but the PCRE2
search gets _slower_. What happened? The secrets can be revealed with the
`--trace` flag once again. In the former case, ripgrep actually detects that
the pattern can't match across multiple lines, and so will fall back to the
"fast line search" strategy as with our search without `-U`.
However, for PCRE2, things are much worse. Namely, since Unicode mode is still
enabled, ripgrep is still going to decode UTF-8 to ensure that it hands only
valid UTF-8 to PCRE2. Unfortunately, one key downside of multiline search is
that ripgrep cannot do it incrementally. Since matches can be arbitrarily long,
ripgrep actually needs the entire file in memory at once. Normally, we can use
a memory map for this, but because we need to UTF-8 decode the file before
searching it, ripgrep winds up reading the entire contents of the file on to
the heap before executing a search. Owch.
OK, so Unicode is killing us here. The file we're searching is _mostly_ ASCII,
so maybe we're OK with missing some data. (Try `rg '[\w--\p{ascii}]'` to see
non-ASCII word characters that an ASCII-only `\w` character class would miss.)
We can disable Unicode in both searches, but this is done differently depending
on the regex engine we use:
```
$ time rg '(?-u)^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.714s
user 0m1.669s
sys 0m0.044s
$ time rg -P '^\w{42}$' subtitles2016-sample --no-pcre2-unicode
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.997s
user 0m1.958s
sys 0m0.037s
```
For the most part, ripgrep's default regex engine performs about the same.
PCRE2 does improve a little bit, and is now almost as fast as the default
regex engine. If you look at the output of `--trace`, you'll see that ripgrep
will no longer perform UTF-8 decoding, but it does still use the slow
line-by-line searcher.
At this point, we can combine all of our insights above: let's try to get off
of the slow line-by-line searcher by enabling multiline mode, and let's stop
UTF-8 decoding by disabling Unicode support:
```
$ time rg -U '(?-u)^\w{42}$' subtitles2016-sample
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.714s
user 0m1.655s
sys 0m0.058s
$ time rg -P -U '^\w{42}$' subtitles2016-sample --no-pcre2-unicode
21225780:EverymajordevelopmentinthehistoryofAmerica
real 0m1.121s
user 0m1.071s
sys 0m0.048s
```
Ah, there's PCRE2's JIT shining! ripgrep's default regex engine once again
remains about the same, but PCRE2 no longer needs to search line-by-line and it
no longer needs to do any kind of UTF-8 checks. This allows the file to get
memory mapped and passed right through PCRE2's JIT at impressive speeds. (As
a brief and interesting historical note, the configuration of "memory map +
multiline + no-Unicode" is exactly the configuration used by The Silver
Searcher. This analysis perhaps sheds some reasoning as to why that
configuration is useful!)
In summary, if you want PCRE2 to go as fast as possible and you don't care
about Unicode and you don't care about matches possibly spanning across
multiple lines, then enable multiline mode with `-U` and disable PCRE2's
Unicode support with the `--no-pcre2-unicode` flag.
Caveat emptor: This author is not a PCRE2 expert, so there may be APIs that can
improve performance that the author missed. Similarly, there may be alternative
designs for a searching tool that are more amenable to how PCRE2 works.
<h3 name="rg-other-cmd">
When I run <code>rg</code>, why does it execute some other command?
</h3>
@@ -616,7 +935,7 @@ for the previous section apply.
* Are you writing portable shell scripts intended to work in a variety of
environments? Great, probably not a good idea to use ripgrep! ripgrep is has
nowhere near the ubquity of grep, so if you do use ripgrep, you might need
nowhere near the ubiquity of grep, so if you do use ripgrep, you might need
to futz with the installation process more than you would with grep.
* Do you care about POSIX compatibility? If so, then you can't use ripgrep
because it never was, isn't and never will be POSIX compatible.

132
GUIDE.md
View File

@@ -18,6 +18,7 @@ translatable to any command line shell environment.
* [Replacements](#replacements)
* [Configuration file](#configuration-file)
* [File encoding](#file-encoding)
* [Binary data](#binary-data)
* [Common options](#common-options)
@@ -109,7 +110,7 @@ colors, you'll notice that `faster` will be highlighted instead of just the
It is beyond the scope of this guide to provide a full tutorial on regular
expressions, but ripgrep's specific syntax is documented here:
https://docs.rs/regex/0.2.5/regex/#syntax
https://docs.rs/regex/*/regex/#syntax
### Recursive search
@@ -227,7 +228,7 @@ with the following contents:
```
ripgrep treats `.ignore` files with higher precedence than `.gitignore` files
(and treats `.rgignore` files with higher precdence than `.ignore` files).
(and treats `.rgignore` files with higher precedence than `.ignore` files).
This means ripgrep will see the `!log/` whitelist rule first and search that
directory.
@@ -235,6 +236,11 @@ Like `.gitignore`, a `.ignore` file can be placed in any directory. Its rules
will be processed with respect to the directory it resides in, just like
`.gitignore`.
To process `.gitignore` and `.ignore` files case insensitively, use the flag
`--ignore-file-case-insensitive`. This is especially useful on case insensitive
file systems like those on Windows and macOS. Note though that this can come
with a significant performance penalty, and is therefore disabled by default.
For a more in depth description of how glob patterns in a `.gitignore` file
are interpreted, please see `man gitignore`.
@@ -520,9 +526,9 @@ config file. Once the environment variable is set, open the file and just type
in the flags you want set automatically. There are only two rules for
describing the format of the config file:
1. Every line is a shell argument, after trimming ASCII whitespace.
2. Lines starting with `#` (optionally preceded by any amount of
ASCII whitespace) are ignored.
1. Every line is a shell argument, after trimming whitespace.
2. Lines starting with `#` (optionally preceded by any amount of whitespace)
are ignored.
In particular, there is no escaping. Each line is given to ripgrep as a single
command line argument verbatim.
@@ -532,8 +538,9 @@ formatting peculiarities:
```
$ cat $HOME/.ripgreprc
# Don't let ripgrep vomit really long lines to my terminal.
# Don't let ripgrep vomit really long lines to my terminal, and show a preview.
--max-columns=150
--max-columns-preview
# Add my 'web' type.
--type-add
@@ -580,7 +587,7 @@ override it.
If you're confused about what configuration file ripgrep is reading arguments
from, then running ripgrep with the `--debug` flag should help clarify things.
The debug output should note what config file is being loaded and the arugments
The debug output should note what config file is being loaded and the arguments
that have been read from the configuration.
Finally, if you want to make absolutely sure that ripgrep *isn't* reading a
@@ -598,13 +605,14 @@ topic, but we can try to summarize its relevancy to ripgrep:
* Files are generally just a bundle of bytes. There is no reliable way to know
their encoding.
* Either the encoding of the pattern must match the encoding of the files being
searched, or a form of transcoding must be performed converts either the
searched, or a form of transcoding must be performed that converts either the
pattern or the file to the same encoding as the other.
* ripgrep tends to work best on plain text files, and among plain text files,
the most popular encodings likely consist of ASCII, latin1 or UTF-8. As
a special exception, UTF-16 is prevalent in Windows environments
In light of the above, here is how ripgrep behaves:
In light of the above, here is how ripgrep behaves when `--encoding auto` is
given, which is the default:
* All input is assumed to be ASCII compatible (which means every byte that
corresponds to an ASCII codepoint actually is an ASCII codepoint). This
@@ -620,12 +628,15 @@ In light of the above, here is how ripgrep behaves:
they correspond to a UTF-16 BOM, then ripgrep will transcode the contents of
the file from UTF-16 to UTF-8, and then execute the search on the transcoded
version of the file. (This incurs a performance penalty since transcoding
is slower than regex searching.)
is slower than regex searching.) If the file contains invalid UTF-16, then
the Unicode replacement codepoint is substituted in place of invalid code
units.
* To handle other cases, ripgrep provides a `-E/--encoding` flag, which permits
you to specify an encoding from the
[Encoding Standard](https://encoding.spec.whatwg.org/#concept-encoding-get).
ripgrep will assume *all* files searched are the encoding specified and
will perform a transcoding step just like in the UTF-16 case described above.
ripgrep will assume *all* files searched are the encoding specified (unless
the file has a BOM) and will perform a transcoding step just like in the
UTF-16 case described above.
By default, ripgrep will not require its input be valid UTF-8. That is, ripgrep
can and will search arbitrary bytes. The key here is that if you're searching
@@ -635,9 +646,26 @@ pattern won't find anything. With all that said, this mode of operation is
important, because it lets you find ASCII or UTF-8 *within* files that are
otherwise arbitrary bytes.
As a special case, the `-E/--encoding` flag supports the value `none`, which
will completely disable all encoding related logic, including BOM sniffing.
When `-E/--encoding` is set to `none`, ripgrep will search the raw bytes of
the underlying file with no transcoding step. For example, here's how you might
search the raw UTF-16 encoding of the string `Шерлок`:
```
$ rg '(?-u)\(\x045\x04@\x04;\x04>\x04:\x04' -E none -a some-utf16-file
```
Of course, that's just an example meant to show how one can drop down into
raw bytes. Namely, the simpler command works as you might expect automatically:
```
$ rg 'Шерлок' some-utf16-file
```
Finally, it is possible to disable ripgrep's Unicode support from within the
pattern regular expression. For example, let's say you wanted `.` to match any
byte rather than any Unicode codepoint. (You might want this while searching a
regular expression. For example, let's say you wanted `.` to match any byte
rather than any Unicode codepoint. (You might want this while searching a
binary file, since `.` by default will not match invalid UTF-8.) You could do
this by disabling Unicode via a regular expression flag:
@@ -654,6 +682,76 @@ $ rg '\w(?-u:\w)\w'
```
### Binary data
In addition to skipping hidden files and files in your `.gitignore` by default,
ripgrep also attempts to skip binary files. ripgrep does this by default
because binary files (like PDFs or images) are typically not things you want to
search when searching for regex matches. Moreover, if content in a binary file
did match, then it's possible for undesirable binary data to be printed to your
terminal and wreak havoc.
Unfortunately, unlike skipping hidden files and respecting your `.gitignore`
rules, a file cannot as easily be classified as binary. In order to figure out
whether a file is binary, the most effective heuristic that balances
correctness with performance is to simply look for `NUL` bytes. At that point,
the determination is simple: a file is considered "binary" if and only if it
contains a `NUL` byte somewhere in its contents.
The issue is that while most binary files will have a `NUL` byte toward the
beginning of its contents, this is not necessarily true. The `NUL` byte might
be the very last byte in a large file, but that file is still considered
binary. While this leads to a fair amount of complexity inside ripgrep's
implementation, it also results in some unintuitive user experiences.
At a high level, ripgrep operates in three different modes with respect to
binary files:
1. The default mode is to attempt to remove binary files from a search
completely. This is meant to mirror how ripgrep removes hidden files and
files in your `.gitignore` automatically. That is, as soon as a file is
detected as binary, searching stops. If a match was already printed (because
it was detected long before a `NUL` byte), then ripgrep will print a warning
message indicating that the search stopped prematurely. This default mode
**only applies to files searched by ripgrep as a result of recursive
directory traversal**, which is consistent with ripgrep's other automatic
filtering. For example, `rg foo .file` will search `.file` even though it
is hidden. Similarly, `rg foo binary-file` search `binary-file` in "binary"
mode automatically.
2. Binary mode is similar to the default mode, except it will not always
stop searching after it sees a `NUL` byte. Namely, in this mode, ripgrep
will continue searching a file that is known to be binary until the first
of two conditions is met: 1) the end of the file has been reached or 2) a
match is or has been seen. This means that in binary mode, if ripgrep
reports no matches, then there are no matches in the file. When a match does
occur, ripgrep prints a message similar to one it prints when in its default
mode indicating that the search has stopped prematurely. This mode can be
forcefully enabled for all files with the `--binary` flag. The purpose of
binary mode is to provide a way to discover matches in all files, but to
avoid having binary data dumped into your terminal.
3. Text mode completely disables all binary detection and searches all files
as if they were text. This is useful when searching a file that is
predominantly text but contains a `NUL` byte, or if you are specifically
trying to search binary data. This mode can be enabled with the `-a/--text`
flag. Note that when using this mode on very large binary files, it is
possible for ripgrep to use a lot of memory.
Unfortunately, there is one additional complexity in ripgrep that can make it
difficult to reason about binary files. That is, the way binary detection works
depends on the way that ripgrep searches your files. Specifically:
* When ripgrep uses memory maps, then binary detection is only performed on the
first few kilobytes of the file in addition to every matching line.
* When ripgrep doesn't use memory maps, then binary detection is performed on
all bytes searched.
This means that whether a file is detected as binary or not can change based
on the internal search strategy used by ripgrep. If you prefer to keep
ripgrep's binary file detection consistent, then you can disable memory maps
via the `--no-mmap` flag. (The cost will be a small performance regression when
searching very large files on some platforms.)
### Common options
ripgrep has a lot of flags. Too many to keep in your head at once. This section
@@ -675,10 +773,10 @@ used options that will likely impact how you use ripgrep on a regular basis.
* `--files`: Print the files that ripgrep *would* search, but don't actually
search them.
* `-a/--text`: Search binary files as if they were plain text.
* `-z/--search-zip`: Search compressed files (gzip, bzip2, lzma, xz). This is
disabled by default.
* `-z/--search-zip`: Search compressed files (gzip, bzip2, lzma, xz, lz4,
brotli, zstd). This is disabled by default.
* `-C/--context`: Show the lines surrounding a match.
* `--sort-files`: Force ripgrep to sort its output by file name. (This disables
* `--sort path`: Force ripgrep to sort its output by file name. (This disables
parallelism, so it might be slower.)
* `-L/--follow`: Follow symbolic links while recursively searching.
* `-M/--max-columns`: Limit the length of lines printed by ripgrep.

215
README.md
View File

@@ -1,15 +1,17 @@
ripgrep (rg)
------------
ripgrep is a line-oriented search tool that recursively searches your current
directory for a regex pattern while respecting your gitignore rules. ripgrep
directory for a regex pattern. By default, ripgrep will respect your .gitignore
and automatically skip hidden files/directories and binary files. ripgrep
has first class support on Windows, macOS and Linux, with binary downloads
available for [every release](https://github.com/BurntSushi/ripgrep/releases).
ripgrep is similar to other popular search tools like The Silver Searcher,
ack and grep.
ripgrep is similar to other popular search tools like The Silver Searcher, ack
and grep.
[![Linux build status](https://travis-ci.org/BurntSushi/ripgrep.svg?branch=master)](https://travis-ci.org/BurntSushi/ripgrep)
[![Linux build status](https://travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![Crates.io](https://img.shields.io/crates/v/ripgrep.svg)](https://crates.io/crates/ripgrep)
[![Packaging status](https://repology.org/badge/tiny-repos/ripgrep.svg)](https://repology.org/project/ripgrep/badges)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
@@ -23,10 +25,11 @@ Please see the [CHANGELOG](CHANGELOG.md) for a release history.
* [Installation](#installation)
* [User Guide](GUIDE.md)
* [Frequently Asked Questions](FAQ.md)
* [Regex syntax](https://docs.rs/regex/0.2.5/regex/#syntax)
* [Regex syntax](https://docs.rs/regex/1/regex/#syntax)
* [Configuration files](GUIDE.md#configuration-file)
* [Shell completions](FAQ.md#complete)
* [Building](#building)
* [Translations](#translations)
### Screenshot of search results
@@ -85,14 +88,16 @@ increases the times to `2.640s` for ripgrep and `10.277s` for GNU grep.
### Why should I use ripgrep?
* It can replace many use cases served by both The Silver Searcher and GNU grep
because it is generally faster than both. (See [the FAQ](FAQ.md#posix4ever)
for more details on whether ripgrep can truly replace grep.)
* Like The Silver Searcher, ripgrep defaults to recursive directory search
and won't search files ignored by your `.gitignore` files. It also ignores
hidden and binary files by default. ripgrep also implements full support
for `.gitignore`, whereas there are many bugs related to that functionality
in The Silver Searcher.
* It can replace many use cases served by other search tools
because it contains most of their features and is generally faster. (See
[the FAQ](FAQ.md#posix4ever) for more details on whether ripgrep can truly
replace grep.)
* Like other tools specialized to code search, ripgrep defaults to recursive
directory search and won't search files ignored by your
`.gitignore`/`.ignore`/`.rgignore` files. It also ignores hidden and binary
files by default. ripgrep also implements full support for `.gitignore`,
whereas there are many bugs related to that functionality in other code
search tools claiming to provide the same functionality.
* ripgrep can search specific types of files. For example, `rg -tpy foo`
limits your search to Python files and `rg -Tjs foo` excludes Javascript
files from your search. ripgrep can be taught about new file types with
@@ -101,38 +106,45 @@ increases the times to `2.640s` for ripgrep and `10.277s` for GNU grep.
of search results, searching multiple patterns, highlighting matches with
color and full Unicode support. Unlike GNU grep, ripgrep stays fast while
supporting Unicode (which is always on).
* ripgrep has optional support for switching its regex engine to use PCRE2.
Among other things, this makes it possible to use look-around and
backreferences in your patterns, which are not supported in ripgrep's default
regex engine. PCRE2 support can be enabled with `-P/--pcre2` (use PCRE2
always) or `--auto-hybrid-regex` (use PCRE2 only if needed).
* ripgrep supports searching files in text encodings other than UTF-8, such
as UTF-16, latin-1, GBK, EUC-JP, Shift_JIS and more. (Some support for
automatically detecting UTF-16 is provided. Other text encodings must be
specifically specified with the `-E/--encoding` flag.)
* ripgrep supports searching files compressed in a common format (gzip, xz,
lzma, bzip2 or lz4) with the `-z/--search-zip` flag.
* ripgrep supports searching files compressed in a common format (brotli,
bzip2, gzip, lz4, lzma, xz, or zstandard) with the `-z/--search-zip` flag.
* ripgrep supports arbitrary input preprocessing filters which could be PDF
text extraction, less supported decompression, decrypting, automatic encoding
detection and so on.
In other words, use ripgrep if you like speed, filtering by default, fewer
bugs, and Unicode support.
bugs and Unicode support.
### Why shouldn't I use ripgrep?
I'd like to try to convince you why you *shouldn't* use ripgrep. This should
give you a glimpse at some important downsides or missing features of
ripgrep.
Despite initially not wanting to add every feature under the sun to ripgrep,
over time, ripgrep has grown support for most features found in other file
searching tools. This includes searching for results spanning across multiple
lines, and opt-in support for PCRE2, which provides look-around and
backreference support.
* ripgrep uses a regex engine based on finite automata, so if you want fancy
regex features such as backreferences or lookaround, ripgrep won't provide
them to you. ripgrep does support lots of things though, including, but not
limited to: lazy quantification (e.g., `a+?`), repetitions (e.g., `a{2,5}`),
begin/end assertions (e.g., `^\w+$`), word boundaries (e.g., `\bfoo\b`), and
support for Unicode categories (e.g., `\p{Sc}` to match currency symbols or
`\p{Lu}` to match any uppercase letter). (Fancier regexes will never be
supported.)
* ripgrep doesn't have multiline search. (Will happen as an opt-in feature.)
At this point, the primary reasons not to use ripgrep probably consist of one
or more of the following:
In other words, if you like fancy regexes or multiline search, then ripgrep
may not quite meet your needs (yet).
* You need a portable and ubiquitous tool. While ripgrep works on Windows,
macOS and Linux, it is not ubiquitous and it does not conform to any
standard such as POSIX. The best tool for this job is good old grep.
* There still exists some other feature (or bug) not listed in this README that
you rely on that's in another tool that isn't in ripgrep.
* There is a performance edge case where ripgrep doesn't do well where another
tool does do well. (Please file a bug report!)
* ripgrep isn't possible to install on your machine or isn't available for your
platform. (Please file a bug report!)
### Is it really faster than everything else?
@@ -145,7 +157,8 @@ Summarizing, ripgrep is fast because:
* It is built on top of
[Rust's regex engine](https://github.com/rust-lang-nursery/regex).
Rust's regex engine uses finite automata, SIMD and aggressive literal
optimizations to make searching very fast.
optimizations to make searching very fast. (PCRE2 support can be opted into
with the `-P/--pcre2` flag.)
* Rust's regex library maintains performance with full Unicode support by
building UTF-8 decoding directly into its deterministic finite automaton
engine.
@@ -154,7 +167,7 @@ Summarizing, ripgrep is fast because:
latter is better for large directories. ripgrep chooses the best searching
strategy for you automatically.
* Applies your ignore patterns in `.gitignore` files using a
[`RegexSet`](https://docs.rs/regex/1.0.0/regex/struct.RegexSet.html).
[`RegexSet`](https://docs.rs/regex/1/regex/struct.RegexSet.html).
That means a single file path can be matched against multiple glob patterns
simultaneously.
* It uses a lock-free parallel recursive directory iterator, courtesy of
@@ -168,6 +181,11 @@ Andy Lester, author of [ack](https://beyondgrep.com/), has published an
excellent table comparing the features of ack, ag, git-grep, GNU grep and
ripgrep: https://beyondgrep.com/feature-comparison/
Note that ripgrep has grown a few significant new features recently that
are not yet present in Andy's table. This includes, but is not limited to,
configuration files, passthru, support for searching compressed files,
multiline search and opt-in fancy regex support via PCRE2.
### Installation
@@ -192,14 +210,6 @@ from homebrew-core, (compiled with rust stable, no SIMD):
$ brew install ripgrep
```
or you can install a binary compiled with rust nightly (including SIMD and all
optimizations) by utilizing a custom tap:
```
$ brew tap burntsushi/ripgrep https://github.com/BurntSushi/ripgrep.git
$ brew install ripgrep-bin
```
If you're a **MacPorts** user, then you can install ripgrep from the
[official ports](https://www.macports.org/ports.php?by=name&substr=ripgrep):
@@ -207,13 +217,15 @@ If you're a **MacPorts** user, then you can install ripgrep from the
$ sudo port install ripgrep
```
If you're a **Windows Chocolatey** user, then you can install ripgrep from the [official repo](https://chocolatey.org/packages/ripgrep):
If you're a **Windows Chocolatey** user, then you can install ripgrep from the
[official repo](https://chocolatey.org/packages/ripgrep):
```
$ choco install ripgrep
```
If you're a **Windows Scoop** user, then you can install ripgrep from the [official bucket](https://github.com/lukesampson/scoop/blob/master/bucket/ripgrep.json):
If you're a **Windows Scoop** user, then you can install ripgrep from the
[official bucket](https://github.com/ScoopInstaller/Main/blob/master/bucket/ripgrep.json):
```
$ scoop install ripgrep
@@ -225,32 +237,38 @@ If you're an **Arch Linux** user, then you can install ripgrep from the official
$ pacman -S ripgrep
```
If you're a **Gentoo** user, you can install ripgrep from the [official repo](https://packages.gentoo.org/packages/sys-apps/ripgrep):
If you're a **Gentoo** user, you can install ripgrep from the
[official repo](https://packages.gentoo.org/packages/sys-apps/ripgrep):
```
$ emerge sys-apps/ripgrep
```
If you're a **Fedora 27+** user, you can install ripgrep from official repositories.
If you're a **Fedora** user, you can install ripgrep from official
repositories.
```
$ sudo dnf install ripgrep
```
If you're a **Fedora 24+** user, you can install ripgrep from [copr](https://copr.fedorainfracloud.org/coprs/carlwgeorge/ripgrep/):
If you're an **openSUSE Leap 15.0** user, you can install ripgrep from the
[utilities repo](https://build.opensuse.org/package/show/utilities/ripgrep):
```
$ sudo dnf copr enable carlwgeorge/ripgrep
$ sudo dnf install ripgrep
$ sudo zypper ar https://download.opensuse.org/repositories/utilities/openSUSE_Leap_15.0/utilities.repo
$ sudo zypper install ripgrep
```
If you're an **openSUSE Tumbleweed** user, you can install ripgrep from the [official repo](http://software.opensuse.org/package/ripgrep):
If you're an **openSUSE Tumbleweed** user, you can install ripgrep from the
[official repo](http://software.opensuse.org/package/ripgrep):
```
$ sudo zypper install ripgrep
```
If you're a **RHEL/CentOS 7** user, you can install ripgrep from [copr](https://copr.fedorainfracloud.org/coprs/carlwgeorge/ripgrep/):
If you're a **RHEL/CentOS 7** user, you can install ripgrep from
[copr](https://copr.fedorainfracloud.org/coprs/carlwgeorge/ripgrep/):
```
$ sudo yum-config-manager --add-repo=https://copr.fedorainfracloud.org/coprs/carlwgeorge/ripgrep/repo/epel-7/carlwgeorge-ripgrep-epel-7.repo
@@ -267,12 +285,25 @@ $ # (Or using the attribute name, which is also ripgrep.)
If you're a **Debian** user (or a user of a Debian derivative like **Ubuntu**),
then ripgrep can be installed using a binary `.deb` file provided in each
[ripgrep release](https://github.com/BurntSushi/ripgrep/releases). Note that
ripgrep is not in the official Debian or Ubuntu repositories.
[ripgrep release](https://github.com/BurntSushi/ripgrep/releases).
```
$ curl -LO https://github.com/BurntSushi/ripgrep/releases/download/0.8.1/ripgrep_0.8.1_amd64.deb
$ sudo dpkg -i ripgrep_0.8.1_amd64.deb
$ curl -LO https://github.com/BurntSushi/ripgrep/releases/download/11.0.2/ripgrep_11.0.2_amd64.deb
$ sudo dpkg -i ripgrep_11.0.2_amd64.deb
```
If you run Debian Buster (currently Debian stable) or Debian sid, ripgrep is
[officially maintained by Debian](https://tracker.debian.org/pkg/rust-ripgrep).
```
$ sudo apt-get install ripgrep
```
If you're an **Ubuntu Cosmic (18.10)** (or newer) user, ripgrep is
[available](https://launchpad.net/ubuntu/+source/rust-ripgrep) using the same
packaging as Debian:
```
$ sudo apt-get install ripgrep
```
(N.B. Various snaps for ripgrep on Ubuntu are also available, but none of them
@@ -280,26 +311,30 @@ seem to work right and generate a number of very strange bug reports that I
don't know how to fix and don't have the time to fix. Therefore, it is no
longer a recommended installation option.)
If you're a **FreeBSD** user, then you can install ripgrep from the [official ports](https://www.freshports.org/textproc/ripgrep/):
If you're a **FreeBSD** user, then you can install ripgrep from the
[official ports](https://www.freshports.org/textproc/ripgrep/):
```
# pkg install ripgrep
```
If you're an **OpenBSD** user, then you can install ripgrep from the [official ports](http://openports.se/textproc/ripgrep):
If you're an **OpenBSD** user, then you can install ripgrep from the
[official ports](http://openports.se/textproc/ripgrep):
```
$ doas pkg_add ripgrep
```
If you're a **NetBSD** user, then you can install ripgrep from [pkgsrc](http://pkgsrc.se/textproc/ripgrep):
If you're a **NetBSD** user, then you can install ripgrep from
[pkgsrc](http://pkgsrc.se/textproc/ripgrep):
```
# pkgin install ripgrep
```
If you're a **Rust programmer**, ripgrep can be installed with `cargo`.
* Note that the minimum supported version of Rust for ripgrep is **1.23.0**,
* Note that the minimum supported version of Rust for ripgrep is **1.34.0**,
although ripgrep may work with older versions.
* Note that the binary may be bigger than expected because it contains debug
symbols. This is intentional. To remove debug symbols and therefore reduce
@@ -309,18 +344,15 @@ If you're a **Rust programmer**, ripgrep can be installed with `cargo`.
$ cargo install ripgrep
```
When compiling with Rust 1.27 or newer, this will automatically enable SIMD
optimizations for search.
ripgrep isn't currently in any other package repositories.
[I'd like to change that](https://github.com/BurntSushi/ripgrep/issues/10).
### Building
ripgrep is written in Rust, so you'll need to grab a
[Rust installation](https://www.rust-lang.org/) in order to compile it.
ripgrep compiles with Rust 1.23.0 (stable) or newer. Building is easy:
ripgrep compiles with Rust 1.34.0 (stable) or newer. In general, ripgrep tracks
the latest stable release of the Rust compiler.
To build ripgrep:
```
$ git clone https://github.com/BurntSushi/ripgrep
@@ -334,18 +366,47 @@ If you have a Rust nightly compiler and a recent Intel CPU, then you can enable
additional optional SIMD acceleration like so:
```
RUSTFLAGS="-C target-cpu=native" cargo build --release --features 'simd-accel avx-accel'
RUSTFLAGS="-C target-cpu=native" cargo build --release --features 'simd-accel'
```
If your machine doesn't support AVX instructions, then simply remove
`avx-accel` from the features list. Similarly for SIMD (which corresponds
roughly to SSE instructions).
The `simd-accel` feature enables SIMD support in certain ripgrep dependencies
(responsible for transcoding). They are not necessary to get SIMD optimizations
for search; those are enabled automatically. Hopefully, some day, the
`simd-accel` feature will similarly become unnecessary. **WARNING:** Currently,
enabling this option can increase compilation times dramatically.
The `simd-accel` and `avx-accel` features enable SIMD support in certain
ripgrep dependencies (responsible for counting lines and transcoding). They
are not necessary to get SIMD optimizations for search; those are enabled
automatically. Hopefully, some day, the `simd-accel` and `avx-accel` features
will similarly become unnecessary.
Finally, optional PCRE2 support can be built with ripgrep by enabling the
`pcre2` feature:
```
$ cargo build --release --features 'pcre2'
```
(Tip: use `--features 'pcre2 simd-accel'` to also include compile time SIMD
optimizations, which will only work with a nightly compiler.)
Enabling the PCRE2 feature works with a stable Rust compiler and will
attempt to automatically find and link with your system's PCRE2 library via
`pkg-config`. If one doesn't exist, then ripgrep will build PCRE2 from source
using your system's C compiler and then statically link it into the final
executable. Static linking can be forced even when there is an available PCRE2
system library by either building ripgrep with the MUSL target or by setting
`PCRE2_SYS_STATIC=1`.
ripgrep can be built with the MUSL target on Linux by first installing the MUSL
library on your system (consult your friendly neighborhood package manager).
Then you just need to add MUSL support to your Rust toolchain and rebuild
ripgrep, which yields a fully static executable:
```
$ rustup target add x86_64-unknown-linux-musl
$ cargo build --release --target x86_64-unknown-linux-musl
```
Applying the `--features` flag from above works as expected. If you want to
build a static executable with MUSL and with PCRE2, then you will need to have
`musl-gcc` installed, which might be in a separate package from the actual
MUSL library, depending on your Linux distribution.
### Running tests
@@ -358,3 +419,11 @@ $ cargo test --all
```
from the repository root.
### Translations
The following is a list of known translations of ripgrep's documentation. These
are unofficially maintained and may not be up to date.
* [Chinese](https://github.com/chinanf-boy/ripgrep-zh#%E6%9B%B4%E6%96%B0-)

40
appveyor.yml
View File

@@ -1,8 +1,6 @@
# Inspired from https://github.com/habitat-sh/habitat/blob/master/appveyor.yml
cache:
- c:\cargo\registry
- c:\cargo\git
- c:\projects\ripgrep\target
init:
- mkdir c:\cargo
@@ -19,14 +17,20 @@ environment:
PROJECT_NAME: ripgrep
RUST_BACKTRACE: full
matrix:
- TARGET: i686-pc-windows-gnu
CHANNEL: stable
- TARGET: i686-pc-windows-msvc
CHANNEL: stable
- TARGET: x86_64-pc-windows-gnu
CHANNEL: stable
BITS: 64
MSYS2: 1
- TARGET: x86_64-pc-windows-msvc
CHANNEL: stable
BITS: 64
- TARGET: i686-pc-windows-gnu
CHANNEL: stable
BITS: 32
MSYS2: 1
- TARGET: i686-pc-windows-msvc
CHANNEL: stable
BITS: 32
matrix:
fast_finish: true
@@ -35,27 +39,27 @@ matrix:
# (Based on from https://github.com/rust-lang/libc/blob/master/appveyor.yml)
install:
- curl -sSf -o rustup-init.exe https://win.rustup.rs/
- rustup-init.exe -y --default-host %TARGET% --no-modify-path
- if defined MSYS2_BITS set PATH=%PATH%;C:\msys64\mingw%MSYS2_BITS%\bin
- rustup-init.exe -y --default-host %TARGET%
- set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
- if defined MSYS2 set PATH=C:\msys64\mingw%BITS%\bin;%PATH%
- rustc -V
- cargo -V
# ???
# Hack to work around a harmless warning in Appveyor builds?
build: false
# Equivalent to Travis' `script` phase
# TODO modify this phase as you see fit
test_script:
- cargo test --verbose --all
- cargo test --verbose --all --features pcre2
before_deploy:
# Generate artifacts for release
- cargo build --release
- cargo build --release --features pcre2
- mkdir staging
- copy target\release\rg.exe staging
- ps: copy target\release\build\ripgrep-*\out\_rg.ps1 staging
- cd staging
# release zipfile will look like 'rust-everywhere-v1.2.3-x86_64-pc-windows-msvc'
# release zipfile will look like 'ripgrep-1.2.3-x86_64-pc-windows-msvc'
- 7z a ../%PROJECT_NAME%-%APPVEYOR_REPO_TAG_NAME%-%TARGET%.zip *
- appveyor PushArtifact ../%PROJECT_NAME%-%APPVEYOR_REPO_TAG_NAME%-%TARGET%.zip
@@ -68,18 +72,10 @@ deploy:
provider: GitHub
# deploy when a new tag is pushed and only on the stable channel
on:
# channel to use to produce the release artifacts
# NOTE make sure you only release *once* per target
# TODO you may want to pick a different channel
CHANNEL: stable
appveyor_repo_tag: true
branches:
only:
- /\d+\.\d+\.\d+/
- /^\d+\.\d+\.\d+$/
- master
- ag/libripgrep
# - appveyor
# - /\d+\.\d+\.\d+/
# except:
# - master

12
build.rs
View File

@@ -1,8 +1,3 @@
#[macro_use]
extern crate clap;
#[macro_use]
extern crate lazy_static;
use std::env;
use std::fs::{self, File};
use std::io::{self, Read, Write};
@@ -168,7 +163,12 @@ fn formatted_arg(arg: &RGArg) -> io::Result<String> {
}
fn formatted_doc_txt(arg: &RGArg) -> io::Result<String> {
let paragraphs: Vec<&str> = arg.doc_long.split("\n\n").collect();
let paragraphs: Vec<String> = arg.doc_long
.replace("{", "&#123;")
.replace("}", r"&#125;")
.split("\n\n")
.map(|s| s.to_string())
.collect();
if paragraphs.is_empty() {
return Err(ioerr(format!("missing docs for --{}", arg.name)));
}

9
ci/before_deploy.sh
View File

@@ -8,7 +8,14 @@ set -ex
# Generate artifacts for release
mk_artifacts() {
cargo build --target "$TARGET" --release
CARGO="$(builder)"
if is_arm; then
"$CARGO" build --target "$TARGET" --release
else
# Technically, MUSL builds will force PCRE2 to get statically compiled,
# but we also want PCRE2 statically build for macOS binaries.
PCRE2_SYS_STATIC=1 "$CARGO" build --target "$TARGET" --release --features 'pcre2'
fi
}
mk_tarball() {

43
ci/build_deb.sh Executable file
View File

@@ -0,0 +1,43 @@
#!/bin/bash
set -e
# This script builds a binary dpkg for Debian based distros. It does not
# currently run in CI, and is instead run manually and the resulting dpkg is
# uploaded to GitHub via the web UI.
#
# Note that this requires 'cargo deb', which can be installed with
# 'cargo install cargo-deb'.
#
# This should be run from the root of the ripgrep repo.
if ! command -V cargo-deb > /dev/null 2>&1; then
echo "cargo-deb command missing" >&2
exit 1
fi
# 'cargo deb' does not seem to provide a way to specify an asset that is
# created at build time, such as ripgrep's man page. To work around this,
# we force a debug build, copy out the man page (and shell completions)
# produced from that build, put it into a predictable location and then build
# the deb, which knows where to look.
DEPLOY_DIR=deployment/deb
mkdir -p "$DEPLOY_DIR"
cargo build
# Find and copy man page.
manpage="$(find ./target/debug -name rg.1 -print0 | xargs -0 ls -t | head -n1)"
cp "$manpage" "$DEPLOY_DIR/"
# Do the same for shell completions.
compbash="$(find ./target/debug -name rg.bash -print0 | xargs -0 ls -t | head -n1)"
cp "$compbash" "$DEPLOY_DIR/"
compfish="$(find ./target/debug -name rg.fish -print0 | xargs -0 ls -t | head -n1)"
cp "$compfish" "$DEPLOY_DIR/"
compzsh="complete/_rg"
cp "$compzsh" "$DEPLOY_DIR/"
# Since we're distributing the dpkg, we don't know whether the user will have
# PCRE2 installed, so just do a static build.
PCRE2_SYS_STATIC=1 cargo deb

5
ci/docker/x86_64-unknown-linux-musl/Dockerfile Normal file
View File

@@ -0,0 +1,5 @@
FROM japaric/x86_64-unknown-linux-musl:v0.1.14
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
libxslt1-dev asciidoc docbook-xsl xsltproc libxml2-utils

10
ci/script.sh
View File

@@ -7,8 +7,14 @@ set -ex
. "$(dirname $0)/utils.sh"
main() {
CARGO="$(builder)"
# Test a normal debug build.
cargo build --target "$TARGET" --verbose --all
if is_arm; then
"$CARGO" build --target "$TARGET" --verbose
else
"$CARGO" build --target "$TARGET" --verbose --all --features 'pcre2'
fi
# Show the output of the most recent build.rs stderr.
set +x
@@ -40,7 +46,7 @@ main() {
"$(dirname "${0}")/test_complete.sh"
# Run tests for ripgrep and all sub-crates.
cargo test --target "$TARGET" --verbose --all
"$CARGO" test --target "$TARGET" --verbose --all --features 'pcre2'
}
main

12
ci/test_complete.sh
View File

@@ -39,12 +39,14 @@ main() {
print -rl - 'Comparing options:' "-$rg" "+$_rg"
# 'Parse' options out of the `--help` output. To prevent false positives we
# only look at lines where the first non-white-space character is `-`
# only look at lines where the first non-white-space character is `-`, or
# where a long option starting with certain letters (see `_rg`) is found.
# Occasionally we may have to handle some manually, however
help_args=( ${(f)"$(
$rg --help |
$rg -- '^\s*-' |
$rg -io -- '[\t ,](-[a-z0-9]|--[a-z0-9-]+)\b' |
tr -d '\t ,' |
$rg -i -- '^\s+--?[a-z0-9]|--[imnp]' |
$rg -ior '$1' -- $'[\t /\"\'`.,](-[a-z0-9]|--[a-z0-9-]+)\\b' |
$rg -v -- --print0 | # False positives
sort -u
)"} )
@@ -58,8 +60,6 @@ main() {
comp_args=( ${comp_args%%-[:[]*} ) # Strip everything after -optname-
comp_args=( ${comp_args%%[:+=[]*} ) # Strip everything after other optspecs
comp_args=( ${comp_args##[^-]*} ) # Remove non-options
# This probably isn't necessary, but we should ensure the same order
comp_args=( ${(f)"$( print -rl - $comp_args | sort -u )"} )
(( $#help_args )) || {

24
ci/utils.sh
View File

@@ -55,10 +55,10 @@ gcc_prefix() {
esac
}
is_ssse3_target() {
case "$(architecture)" in
amd64) return 0 ;;
*) return 1 ;;
is_musl() {
case "$TARGET" in
*-musl) return 0 ;;
*) return 1 ;;
esac
}
@@ -69,6 +69,13 @@ is_x86() {
esac
}
is_x86_64() {
case "$(architecture)" in
amd64) return 0 ;;
*) return 1 ;;
esac
}
is_arm() {
case "$(architecture)" in
armhf) return 0 ;;
@@ -89,3 +96,12 @@ is_osx() {
*) return 1 ;;
esac
}
builder() {
if is_musl && is_x86_64; then
cargo install cross
echo "cross"
else
echo "cargo"
fi
}

281
complete/_rg
View File

@@ -6,8 +6,8 @@
# Run ci/test_complete.sh after building to ensure that the options supported by
# this function stay in synch with the `rg` binary.
#
# @see http://zsh.sourceforge.net/Doc/Release/Completion-System.html
# @see https://github.com/zsh-users/zsh/blob/master/Etc/completion-style-guide
# For convenience, a completion reference guide is included at the bottom of
# this file.
#
# Originally based on code from the zsh-users project — see copyright notice
# below.
@@ -26,8 +26,10 @@ _rg() {
# style set. Note that this prefix check has to be updated manually to account
# for all of the potential negation options listed below!
if
# (--[imn]* => --ignore*, --messages, --no-*)
[[ $PREFIX$SUFFIX == --[imn]* ]] ||
# We also want to list all of these options during testing
[[ $_RG_COMPLETE_LIST_ARGS == (1|t*|y*) ]] ||
# (--[imnp]* => --ignore*, --messages, --no-*, --pcre2-unicode)
[[ $PREFIX$SUFFIX == --[imnp]* ]] ||
zstyle -t ":complete:$curcontext:*" complete-all
then
no=
@@ -41,6 +43,13 @@ _rg() {
+ '(exclusive)' # Misc. fully exclusive options
'(: * -)'{-h,--help}'[display help information]'
'(: * -)'{-V,--version}'[display version information]'
'(: * -)'--pcre2-version'[print the version of PCRE2 used by ripgrep, if available]'
+ '(buffered)' # buffering options
'--line-buffered[force line buffering]'
$no"--no-line-buffered[don't force line buffering]"
'--block-buffered[force block buffering]'
$no"--no-block-buffered[don't force block buffering]"
+ '(case)' # Case-sensitivity options
{-i,--ignore-case}'[search case-insensitively]'
@@ -61,11 +70,15 @@ _rg() {
$no"--no-column[don't show column numbers for matches]"
+ '(count)' # Counting options
'(passthru)'{-c,--count}'[only show count of matching lines for each file]'
'(passthru)--count-matches[only show count of individual matches for each file]'
{-c,--count}'[only show count of matching lines for each file]'
'--count-matches[only show count of individual matches for each file]'
+ '(encoding)' # Encoding options
{-E+,--encoding=}'[specify text encoding of files to search]: :_rg_encodings'
$no'--no-encoding[use default text encoding]'
+ file # File-input options
'*'{-f+,--file=}'[specify file containing patterns to search for]: :_files'
'(1)*'{-f+,--file=}'[specify file containing patterns to search for]: :_files'
+ '(file-match)' # Files with/without match options
'(stats)'{-l,--files-with-matches}'[only show names of files with matches]'
@@ -73,7 +86,11 @@ _rg() {
+ '(file-name)' # File-name options
{-H,--with-filename}'[show file name for matches]'
"--no-filename[don't show file name for matches]"
{-I,--no-filename}"[don't show file name for matches]"
+ '(file-system)' # File system options
"--one-file-system[don't descend into directories on other file systems]"
$no'--no-one-file-system[descend into directories on other file systems]'
+ '(fixed)' # Fixed-string options
{-F,--fixed-strings}'[treat pattern as literal string instead of regular expression]'
@@ -87,6 +104,10 @@ _rg() {
'*'{-g+,--glob=}'[include/exclude files matching specified glob]:glob'
'*--iglob=[include/exclude files matching specified case-insensitive glob]:glob'
+ '(glob-case-insensitive)' # File-glob case sensitivity options
'--glob-case-insensitive[treat -g/--glob patterns case insensitively]'
$no'--no-glob-case-insensitive[treat -g/--glob patterns case sensitively]'
+ '(heading)' # Heading options
'(pretty-vimgrep)--heading[show matches grouped by file name]'
"(pretty-vimgrep)--no-heading[don't show matches grouped by file name]"
@@ -95,9 +116,17 @@ _rg() {
'--hidden[search hidden files and directories]'
$no"--no-hidden[don't search hidden files and directories]"
+ '(hybrid)' # hybrid regex options
'--auto-hybrid-regex[dynamically use PCRE2 if necessary]'
$no"--no-auto-hybrid-regex[don't dynamically use PCRE2 if necessary]"
+ '(ignore)' # Ignore-file options
"(--no-ignore-global --no-ignore-parent --no-ignore-vcs)--no-ignore[don't respect ignore files]"
$no'(--ignore-global --ignore-parent --ignore-vcs)--ignore[respect ignore files]'
"(--no-ignore-global --no-ignore-parent --no-ignore-vcs --no-ignore-dot)--no-ignore[don't respect ignore files]"
$no'(--ignore-global --ignore-parent --ignore-vcs --ignore-dot)--ignore[respect ignore files]'
+ '(ignore-file-case-insensitive)' # Ignore-file case sensitivity options
'--ignore-file-case-insensitive[process ignore files case insensitively]'
$no'--no-ignore-file-case-insensitive[process ignore files case sensitively]'
+ '(ignore-global)' # Global ignore-file options
"--no-ignore-global[don't respect global ignore files]"
@@ -111,10 +140,27 @@ _rg() {
"--no-ignore-vcs[don't respect version control ignore files]"
$no'--ignore-vcs[respect version control ignore files]'
+ '(line)' # Line-number options
+ '(ignore-dot)' # .ignore-file options
"--no-ignore-dot[don't respect .ignore files]"
$no'--ignore-dot[respect .ignore files]'
+ '(json)' # JSON options
'--json[output results in JSON Lines format]'
$no"--no-json[don't output results in JSON Lines format]"
+ '(line-number)' # Line-number options
{-n,--line-number}'[show line numbers for matches]'
{-N,--no-line-number}"[don't show line numbers for matches]"
+ '(line-terminator)' # Line-terminator options
'--crlf[use CRLF as line terminator]'
$no"--no-crlf[don't use CRLF as line terminator]"
'(text)--null-data[use NUL as line terminator]'
+ '(max-columns-preview)' # max column preview options
'--max-columns-preview[show preview for long lines (with -M)]'
$no"--no-max-columns-preview[don't show preview for long lines (with -M)]"
+ '(max-depth)' # Directory-depth options
'--max-depth=[specify max number of directories to descend]:number of directories'
'!--maxdepth=:number of directories'
@@ -131,21 +177,36 @@ _rg() {
'--mmap[search using memory maps when possible]'
"--no-mmap[don't search using memory maps]"
+ '(multiline)' # multiline options
'--multiline[permit matching across multiple lines]'
$no"--no-multiline[restrict matches to at most one line each]"
+ '(multiline)' # Multiline options
{-U,--multiline}'[permit matching across multiple lines]'
$no'(multiline-dotall)--no-multiline[restrict matches to at most one line each]'
+ '(multiline-dotall)' # Multiline DOTALL options
'(--no-multiline)--multiline-dotall[allow "." to match newline (with -U)]'
$no"(--no-multiline)--no-multiline-dotall[don't allow \".\" to match newline (with -U)]"
+ '(only)' # Only-match options
'(passthru replace)'{-o,--only-matching}'[show only matching part of each line]'
{-o,--only-matching}'[show only matching part of each line]'
+ '(passthru)' # Pass-through options
'(--vimgrep count only replace)--passthru[show both matching and non-matching lines]'
'!(--vimgrep count only replace)--passthrough'
'(--vimgrep)--passthru[show both matching and non-matching lines]'
'!(--vimgrep)--passthrough'
+ '(pcre2)' # PCRE2 options
{-P,--pcre2}'[enable matching with PCRE2]'
$no'(pcre2-unicode)--no-pcre2[disable matching with PCRE2]'
+ '(pcre2-unicode)' # PCRE2 Unicode options
$no'(--no-pcre2 --no-pcre2-unicode)--pcre2-unicode[enable PCRE2 Unicode mode (with -P)]'
'(--no-pcre2 --pcre2-unicode)--no-pcre2-unicode[disable PCRE2 Unicode mode (with -P)]'
+ '(pre)' # Preprocessing options
'(-z --search-zip)--pre=[specify preprocessor utility]:preprocessor utility:_command_names -e'
$no'--no-pre[disable preprocessor utility]'
+ pre-glob # Preprocessing glob options
'*--pre-glob[include/exclude files for preprocessing with --pre]'
+ '(pretty-vimgrep)' # Pretty/vimgrep display options
'(heading)'{-p,--pretty}'[alias for --color=always --heading -n]'
'(heading passthru)--vimgrep[show results in vim-compatible format]'
@@ -154,21 +215,41 @@ _rg() {
'(1 file)*'{-e+,--regexp=}'[specify pattern]:pattern'
+ '(replace)' # Replacement options
'(count only passthru)'{-r+,--replace=}'[specify string used to replace matches]:replace string'
{-r+,--replace=}'[specify string used to replace matches]:replace string'
+ '(sort)' # File-sorting options
'(threads)--sort-files[sort results by file path (disables parallelism)]'
$no"--no-sort-files[don't sort results by file path]"
'(threads)--sort=[sort results in ascending order (disables parallelism)]:sort method:((
none\:"no sorting"
path\:"sort by file path"
modified\:"sort by last modified time"
accessed\:"sort by last accessed time"
created\:"sort by creation time"
))'
'(threads)--sortr=[sort results in descending order (disables parallelism)]:sort method:((
none\:"no sorting"
path\:"sort by file path"
modified\:"sort by last modified time"
accessed\:"sort by last accessed time"
created\:"sort by creation time"
))'
'!(threads)--sort-files[sort results by file path (disables parallelism)]'
+ stats # Statistics options
+ '(stats)' # Statistics options
'(--files file-match)--stats[show search statistics]'
$no"--no-stats[don't show search statistics]"
+ '(text)' # Binary-search options
{-a,--text}'[search binary files as if they were text]'
$no"--no-text[don't search binary files as if they were text]"
"--binary[search binary files, don't print binary data]"
$no"--no-binary[don't search binary files]"
$no"(--null-data)--no-text[don't search binary files as if they were text]"
+ '(threads)' # Thread-count options
'(--sort-files)'{-j+,--threads=}'[specify approximate number of threads to use]:number of threads'
'(sort)'{-j+,--threads=}'[specify approximate number of threads to use]:number of threads'
+ '(trim)' # Trim options
'--trim[trim any ASCII whitespace prefix from each line]'
$no"--no-trim[don't trim ASCII whitespace prefix from each line]"
+ type # Type options
'*'{-t+,--type=}'[only search files matching specified type]: :_rg_types'
@@ -198,7 +279,6 @@ _rg() {
'--context-separator=[specify string used to separate non-continuous context lines in output]:separator'
'--debug[show debug messages]'
'--dfa-size-limit=[specify upper size limit of generated DFA]:DFA size (bytes)'
'(-E --encoding)'{-E+,--encoding=}'[specify text encoding of files to search]: :_rg_encodings'
"(1 stats)--files[show each file that would be searched (but don't search)]"
'*--ignore-file=[specify additional ignore file]:ignore file:_files'
'(-v --invert-match)'{-v,--invert-match}'[invert matching]'
@@ -313,7 +393,7 @@ _rg_encodings() {
shift{-,_}jis csshiftjis {,x-}sjis ms_kanji ms932
utf{,-}8 utf-16{,be,le} unicode-1-1-utf-8
windows-{31j,874,949,125{0..8}} dos-874 tis-620 ansi_x3.4-1968
x-user-defined auto
x-user-defined auto none
)
_wanted encodings expl encoding compadd -a "$@" - _encodings
@@ -331,6 +411,157 @@ _rg_types() {
_rg "$@"
################################################################################
# ZSH COMPLETION REFERENCE
#
# For the convenience of developers who aren't especially familiar with zsh
# completion functions, a brief reference guide follows. This is in no way
# comprehensive; it covers just enough of the basic structure, syntax, and
# conventions to help someone make simple changes like adding new options. For
# more complete documentation regarding zsh completion functions, please see the
# following:
#
# * http://zsh.sourceforge.net/Doc/Release/Completion-System.html
# * https://github.com/zsh-users/zsh/blob/master/Etc/completion-style-guide
#
# OVERVIEW
#
# Most zsh completion functions are defined in terms of `_arguments`, which is a
# shell function that takes a series of argument specifications. The specs for
# `rg` are stored in an array, which is common for more complex functions; the
# elements of the array are passed to `_arguments` on invocation.
#
# ARGUMENT-SPECIFICATION SYNTAX
#
# The following is a contrived example of the argument specs for a simple tool:
#
# '(: * -)'{-h,--help}'[display help information]'
# '(-q -v --quiet --verbose)'{-q,--quiet}'[decrease output verbosity]'
# '!(-q -v --quiet --verbose)--silent'
# '(-q -v --quiet --verbose)'{-v,--verbose}'[increase output verbosity]'
# '--color=[specify when to use colors]:when:(always never auto)'
# '*:example file:_files'
#
# Although there may appear to be six specs here, there are actually nine; we
# use brace expansion to combine specs for options that go by multiple names,
# like `-q` and `--quiet`. This is customary, and ties in with the fact that zsh
# merges completion possibilities together when they have the same description.
#
# The first line defines the option `-h`/`--help`. With most tools, it isn't
# useful to complete anything after `--help` because it effectively overrides
# all others; the `(: * -)` at the beginning of the spec tells zsh not to
# complete any other operands (`:` and `*`) or options (`-`) after this one has
# been used. The `[...]` at the end associates a description with `-h`/`--help`;
# as mentioned, zsh will see the identical descriptions and merge these options
# together when offering completion possibilities.
#
# The next line defines `-q`/`--quiet`. Here we don't want to suppress further
# completions entirely, but we don't want to offer `-q` if `--quiet` has been
# given (since they do the same thing), nor do we want to offer `-v` (since it
# doesn't make sense to be quiet and verbose at the same time). We don't need to
# tell zsh not to offer `--quiet` a second time, since that's the default
# behaviour, but since this line expands to two specs describing `-q` *and*
# `--quiet` we do need to explicitly list all of them here.
#
# The next line defines a hidden option `--silent` — maybe it's a deprecated
# synonym for `--quiet`. The leading `!` indicates that zsh shouldn't offer this
# option during completion. The benefit of providing a spec for an option that
# shouldn't be completed is that, if someone *does* use it, we can correctly
# suppress completion of other options afterwards.
#
# The next line defines `-v`/`--verbose`; this works just like `-q`/`--quiet`.
#
# The next line defines `--color`. In this example, `--color` doesn't have a
# corresponding short option, so we don't need to use brace expansion. Further,
# there are no other options it's exclusive with (just itself), so we don't need
# to define those at the beginning. However, it does take a mandatory argument.
# The `=` at the end of `--color=` indicates that the argument may appear either
# like `--color always` or like `--color=always`; this is how most GNU-style
# command-line tools work. The corresponding short option would normally use `+`
# — for example, `-c+` would allow either `-c always` or `-calways`. For this
# option, the arguments are known ahead of time, so we can simply list them in
# parentheses at the end (`when` is used as the description for the argument).
#
# The last line defines an operand (a non-option argument). In this example, the
# operand can be used any number of times (the leading `*`), and it should be a
# file path, so we tell zsh to call the `_files` function to complete it. The
# `example file` in the middle is the description to use for this operand; we
# could use a space instead to accept the default provided by `_files`.
#
# GROUPING ARGUMENT SPECIFICATIONS
#
# Newer versions of zsh support grouping argument specs together. All specs
# following a `+` and then a group name are considered to be members of the
# named group. Grouping is useful mostly for organisational purposes; it makes
# the relationship between different options more obvious, and makes it easier
# to specify exclusions.
#
# We could rewrite our example above using grouping as follows:
#
# '(: * -)'{-h,--help}'[display help information]'
# '--color=[specify when to use colors]:when:(always never auto)'
# '*:example file:_files'
# + '(verbosity)'
# {-q,--quiet}'[decrease output verbosity]'
# '!--silent'
# {-v,--verbose}'[increase output verbosity]'
#
# Here we take advantage of a useful feature of spec grouping — when the group
# name is surrounded by parentheses, as in `(verbosity)`, it tells zsh that all
# of the options in that group are exclusive with each other. As a result, we
# don't need to manually list out the exclusions at the beginning of each
# option.
#
# Groups can also be referred to by name in other argument specs; for example:
#
# '(xyz)--aaa' '*: :_files'
# + xyz --xxx --yyy --zzz
#
# Here we use the group name `xyz` to tell zsh that `--xxx`, `--yyy`, and
# `--zzz` are not to be completed after `--aaa`. This makes the exclusion list
# much more compact and reusable.
#
# CONVENTIONS
#
# zsh completion functions generally adhere to the following conventions:
#
# * Use two spaces for indentation
# * Combine specs for options with different names using brace expansion
# * In combined specs, list the short option first (as in `{-a,--text}`)
# * Use `+` or `=` as described above for options that take arguments
# * Provide a description for all options, option-arguments, and operands
# * Capitalise/punctuate argument descriptions as phrases, not complete
# sentences — 'display help information', never 'Display help information.'
# (but still capitalise acronyms and proper names)
# * Write argument descriptions as verb phrases — 'display x', 'enable y',
# 'use z'
# * Word descriptions to make it clear when an option expects an argument;
# usually this is done with the word 'specify', as in 'specify x' or
# 'use specified x')
# * Write argument descriptions as tersely as possible — for example, articles
# like 'a' and 'the' should be omitted unless it would be confusing
#
# Other conventions currently used by this function:
#
# * Order argument specs alphabetically by group name, then option name
# * Group options that are directly related, mutually exclusive, or frequently
# referenced by other argument specs
# * Use only characters in the set [a-z0-9_-] in group names
# * Order exclusion lists as follows: short options, long options, groups
# * Use American English in descriptions
# * Use 'don't' in descriptions instead of 'do not'
# * Word descriptions for related options as similarly as possible. For example,
# `--foo[enable foo]` and `--no-foo[disable foo]`, or `--foo[use foo]` and
# `--no-foo[don't use foo]`
# * Word descriptions to make it clear when an option only makes sense with
# another option, usually by adding '(with -x)' to the end
# * Don't quote strings or variables unnecessarily. When quotes are required,
# prefer single-quotes to double-quotes
# * Prefix option specs with `$no` when the option serves only to negate the
# behaviour of another option that must be provided explicitly by the user.
# This prevents rarely used options from cluttering up the completion menu
################################################################################
# ------------------------------------------------------------------------------
# Copyright (c) 2011 Github zsh-users - http://github.com/zsh-users
# All rights reserved.

101
doc/rg.1.txt.tpl
View File

@@ -28,27 +28,40 @@ Synopsis
DESCRIPTION
-----------
ripgrep (rg) recursively searches your current directory for a regex pattern.
By default, ripgrep will respect your `.gitignore` and automatically skip
hidden files/directories and binary files.
By default, ripgrep will respect your .gitignore and automatically skip hidden
files/directories and binary files.
ripgrep's regex engine uses finite automata and guarantees linear time
searching. Because of this, features like backreferences and arbitrary
lookaround are not supported.
ripgrep's default regex engine uses finite automata and guarantees linear
time searching. Because of this, features like backreferences and arbitrary
look-around are not supported. However, if ripgrep is built with PCRE2, then
the *--pcre2* flag can be used to enable backreferences and look-around.
ripgrep supports configuration files. Set *RIPGREP_CONFIG_PATH* to a
configuration file. The file can specify one shell argument per line. Lines
starting with *#* are ignored. For more details, see the man page or the
*README*.
Tip: to disable all smart filtering and make ripgrep behave a bit more like
classical grep, use *rg -uuu*.
REGEX SYNTAX
------------
ripgrep uses Rust's regex engine, which documents its syntax:
https://docs.rs/regex/0.2.5/regex/#syntax
ripgrep uses Rust's regex engine by default, which documents its syntax:
https://docs.rs/regex/*/regex/#syntax
ripgrep uses byte-oriented regexes, which has some additional documentation:
https://docs.rs/regex/0.2.5/regex/bytes/index.html#syntax
https://docs.rs/regex/*/regex/bytes/index.html#syntax
To a first approximation, ripgrep uses Perl-like regexes without look-around or
backreferences. This makes them very similar to the "extended" (ERE) regular
expressions supported by `egrep`, but with a few additional features like
expressions supported by *egrep*, but with a few additional features like
Unicode character classes.
If you're using ripgrep with the *--pcre2* flag, then please consult
https://www.pcre.org or the PCRE2 man pages for documentation on the supported
syntax.
POSITIONAL ARGUMENTS
--------------------
@@ -58,18 +71,37 @@ _PATTERN_::
_PATH_::
A file or directory to search. Directories are searched recursively. Paths
specified expicitly on the command line override glob and ignore rules.
specified explicitly on the command line override glob and ignore rules.
OPTIONS
-------
Note that for many options, there exist flags to disable them. In some cases,
those flags are not listed in a first class way below. For example, the
*--column* flag (listed below) enables column numbers in ripgrep's output, but
the *--no-column* flag (not listed below) disables them. The reverse can also
exist. For example, the *--no-ignore* flag (listed below) disables ripgrep's
*gitignore* logic, but the *--ignore* flag (not listed below) enables it. These
flags are useful for overriding a ripgrep configuration file on the command
line. Each flag's documentation notes whether an inverted flag exists. In all
cases, the flag specified last takes precedence.
{OPTIONS}
EXIT STATUS
-----------
If ripgrep finds a match, then the exit status of the program is 0. If no match
could be found, then the exit status is non-zero.
could be found, then the exit status is 1. If an error occurred, then the exit
status is always 2 unless ripgrep was run with the *--quiet* flag and a match
was found. In summary:
* `0` exit status occurs only when at least one match was found, and if
no error occurred, unless *--quiet* was given.
* `1` exit status occurs only when no match was found and no error occurred.
* `2` exit status occurs when an error occurred. This is true for both
catastrophic errors (e.g., a regex syntax error) and for soft errors (e.g.,
unable to read a file).
CONFIGURATION FILES
@@ -78,12 +110,12 @@ ripgrep supports reading configuration files that change ripgrep's default
behavior. The format of the configuration file is an "rc" style and is very
simple. It is defined by two rules:
1. Every line is a shell argument, after trimming ASCII whitespace.
2. Lines starting with _#_ (optionally preceded by any amount of
ASCII whitespace) are ignored.
1. Every line is a shell argument, after trimming whitespace.
2. Lines starting with *#* (optionally preceded by any amount of
whitespace) are ignored.
ripgrep will look for a single configuration file if and only if the
_RIPGREP_CONFIG_PATH_ environment variable is set and is non-empty.
*RIPGREP_CONFIG_PATH* environment variable is set and is non-empty.
ripgrep will parse shell arguments from this file on startup and will
behave as if the arguments in this file were prepended to any explicit
arguments given to ripgrep on the command line.
@@ -111,16 +143,16 @@ would behave identically to the following command
same with using globs
--glob=!git/*
--glob=!.git
or
--glob
!git/*
!.git
would behave identically to the following command
rg --glob '!git/*' foo
rg --glob '!.git' foo
ripgrep also provides a flag, *--no-config*, that when present will suppress
any and all support for configuration. This includes any future support
@@ -145,20 +177,35 @@ SHELL COMPLETION
Shell completion files are included in the release tarball for Bash, Fish, Zsh
and PowerShell.
For *bash*, move `rg.bash` to `$XDG_CONFIG_HOME/bash_completion`
or `/etc/bash_completion.d/`.
For *bash*, move *rg.bash* to *$XDG_CONFIG_HOME/bash_completion*
or */etc/bash_completion.d/*.
For *fish*, move `rg.fish` to `$HOME/.config/fish/completions`.
For *fish*, move *rg.fish* to *$HOME/.config/fish/completions*.
For *zsh*, move `_rg` to one of your `$fpath` directories.
For *zsh*, move *_rg* to one of your *$fpath* directories.
CAVEATS
-------
ripgrep may abort unexpectedly when using default settings if it searches a
file that is simultaneously truncated. This behavior can be avoided by passing
the --no-mmap flag which will forcefully disable the use of memory maps in all
cases.
the *--no-mmap* flag which will forcefully disable the use of memory maps in
all cases.
ripgrep may use a large amount of memory depending on a few factors. Firstly,
if ripgrep uses parallelism for search (the default), then the entire output
for each individual file is buffered into memory in order to prevent
interleaving matches in the output. To avoid this, you can disable parallelism
with the *-j1* flag. Secondly, ripgrep always needs to have at least a single
line in memory in order to execute a search. A file with a very long line can
thus cause ripgrep to use a lot of memory. Generally, this only occurs when
searching binary data with the *-a* flag enabled. (When the *-a* flag isn't
enabled, ripgrep will replace all NUL bytes with line terminators, which
typically prevents exorbitant memory usage.) Thirdly, when ripgrep searches
a large file using a memory map, the process will report its resident memory
usage as the size of the file. However, this does not mean ripgrep actually
needed to use that much memory; the operating system will generally handle this
for you.
VERSION
@@ -170,7 +217,11 @@ HOMEPAGE
--------
https://github.com/BurntSushi/ripgrep
Please report bugs and feature requests in the issue tracker.
Please report bugs and feature requests in the issue tracker. Please do your
best to provide a reproducible test case for bugs. This should include the
corpus being searched, the *rg* command, the actual output and the expected
output. Please also include the output of running the same *rg* command but
with the *--debug* flag.
AUTHORS

14
globset/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "globset"
version = "0.4.1" #:version
version = "0.4.4" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Cross platform single glob and glob set matching. Glob set matching is the
@@ -19,14 +19,14 @@ name = "globset"
bench = false
[dependencies]
aho-corasick = "0.6.0"
fnv = "1.0"
log = "0.4"
memchr = "2"
regex = "1"
aho-corasick = "0.7.3"
bstr = { version = "0.2.0", default-features = false, features = ["std"] }
fnv = "1.0.6"
log = "0.4.5"
regex = "1.1.5"
[dev-dependencies]
glob = "0.2"
glob = "0.3.0"
[features]
simd-accel = []

2
globset/README.md
View File

@@ -4,7 +4,7 @@ Cross platform single glob and glob set matching. Glob set matching is the
process of matching one or more glob patterns against a single candidate path
simultaneously, and returning all of the globs that matched.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.png)](https://travis-ci.org/BurntSushi/ripgrep)
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/globset.svg)](https://crates.io/crates/globset)

99
globset/src/glob.rs
View File

@@ -837,40 +837,66 @@ impl<'a> Parser<'a> {
fn parse_star(&mut self) -> Result<(), Error> {
let prev = self.prev;
if self.chars.peek() != Some(&'*') {
if self.peek() != Some('*') {
self.push_token(Token::ZeroOrMore)?;
return Ok(());
}
assert!(self.bump() == Some('*'));
if !self.have_tokens()? {
self.push_token(Token::RecursivePrefix)?;
let next = self.bump();
if !next.map(is_separator).unwrap_or(true) {
return Err(self.error(ErrorKind::InvalidRecursive));
if !self.peek().map_or(true, is_separator) {
self.push_token(Token::ZeroOrMore)?;
self.push_token(Token::ZeroOrMore)?;
} else {
self.push_token(Token::RecursivePrefix)?;
assert!(self.bump().map_or(true, is_separator));
}
return Ok(());
}
self.pop_token()?;
if !prev.map(is_separator).unwrap_or(false) {
if self.stack.len() <= 1
|| (prev != Some(',') && prev != Some('{')) {
return Err(self.error(ErrorKind::InvalidRecursive));
|| (prev != Some(',') && prev != Some('{'))
{
self.push_token(Token::ZeroOrMore)?;
self.push_token(Token::ZeroOrMore)?;
return Ok(());
}
}
match self.chars.peek() {
None => {
assert!(self.bump().is_none());
self.push_token(Token::RecursiveSuffix)
let is_suffix =
match self.peek() {
None => {
assert!(self.bump().is_none());
true
}
Some(',') | Some('}') if self.stack.len() >= 2 => {
true
}
Some(c) if is_separator(c) => {
assert!(self.bump().map(is_separator).unwrap_or(false));
false
}
_ => {
self.push_token(Token::ZeroOrMore)?;
self.push_token(Token::ZeroOrMore)?;
return Ok(());
}
};
match self.pop_token()? {
Token::RecursivePrefix => {
self.push_token(Token::RecursivePrefix)?;
}
Some(&',') | Some(&'}') if self.stack.len() >= 2 => {
self.push_token(Token::RecursiveSuffix)
Token::RecursiveSuffix => {
self.push_token(Token::RecursiveSuffix)?;
}
Some(&c) if is_separator(c) => {
assert!(self.bump().map(is_separator).unwrap_or(false));
self.push_token(Token::RecursiveZeroOrMore)
_ => {
if is_suffix {
self.push_token(Token::RecursiveSuffix)?;
} else {
self.push_token(Token::RecursiveZeroOrMore)?;
}
}
_ => Err(self.error(ErrorKind::InvalidRecursive)),
}
Ok(())
}
fn parse_class(&mut self) -> Result<(), Error> {
@@ -959,6 +985,10 @@ impl<'a> Parser<'a> {
self.cur = self.chars.next();
self.cur
}
fn peek(&mut self) -> Option<char> {
self.chars.peek().map(|&ch| ch)
}
}
#[cfg(test)]
@@ -1144,13 +1174,6 @@ mod tests {
syntax!(cls20, "[^a]", vec![classn('a', 'a')]);
syntax!(cls21, "[^a-z]", vec![classn('a', 'z')]);
syntaxerr!(err_rseq1, "a**", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq2, "**a", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq3, "a**b", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq4, "***", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq5, "/a**", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq6, "/**a", ErrorKind::InvalidRecursive);
syntaxerr!(err_rseq7, "/a**b", ErrorKind::InvalidRecursive);
syntaxerr!(err_unclosed1, "[", ErrorKind::UnclosedClass);
syntaxerr!(err_unclosed2, "[]", ErrorKind::UnclosedClass);
syntaxerr!(err_unclosed3, "[!", ErrorKind::UnclosedClass);
@@ -1194,8 +1217,30 @@ mod tests {
toregex!(re8, "[*]", r"^[\*]$");
toregex!(re9, "[+]", r"^[\+]$");
toregex!(re10, "+", r"^\+$");
toregex!(re11, "**", r"^.*$");
toregex!(re12, "☃", r"^\xe2\x98\x83$");
toregex!(re11, "☃", r"^\xe2\x98\x83$");
toregex!(re12, "**", r"^.*$");
toregex!(re13, "**/", r"^.*$");
toregex!(re14, "**/*", r"^(?:/?|.*/).*$");
toregex!(re15, "**/**", r"^.*$");
toregex!(re16, "**/**/*", r"^(?:/?|.*/).*$");
toregex!(re17, "**/**/**", r"^.*$");
toregex!(re18, "**/**/**/*", r"^(?:/?|.*/).*$");
toregex!(re19, "a/**", r"^a(?:/?|/.*)$");
toregex!(re20, "a/**/**", r"^a(?:/?|/.*)$");
toregex!(re21, "a/**/**/**", r"^a(?:/?|/.*)$");
toregex!(re22, "a/**/b", r"^a(?:/|/.*/)b$");
toregex!(re23, "a/**/**/b", r"^a(?:/|/.*/)b$");
toregex!(re24, "a/**/**/**/b", r"^a(?:/|/.*/)b$");
toregex!(re25, "**/b", r"^(?:/?|.*/)b$");
toregex!(re26, "**/**/b", r"^(?:/?|.*/)b$");
toregex!(re27, "**/**/**/b", r"^(?:/?|.*/)b$");
toregex!(re28, "a**", r"^a.*.*$");
toregex!(re29, "**a", r"^.*.*a$");
toregex!(re30, "a**b", r"^a.*.*b$");
toregex!(re31, "***", r"^.*.*.*$");
toregex!(re32, "/a**", r"^/a.*.*$");
toregex!(re33, "/**a", r"^/.*.*a$");
toregex!(re34, "/a**b", r"^/a.*.*b$");
matches!(match1, "a", "a");
matches!(match2, "a*b", "a_b");

88
globset/src/lib.rs
View File

@@ -104,27 +104,25 @@ or to enable case insensitive matching.
#![deny(missing_docs)]
extern crate aho_corasick;
extern crate bstr;
extern crate fnv;
#[macro_use]
extern crate log;
extern crate memchr;
extern crate regex;
use std::borrow::Cow;
use std::collections::{BTreeMap, HashMap};
use std::error::Error as StdError;
use std::ffi::OsStr;
use std::fmt;
use std::hash;
use std::path::Path;
use std::str;
use aho_corasick::{Automaton, AcAutomaton, FullAcAutomaton};
use aho_corasick::AhoCorasick;
use bstr::{B, ByteSlice, ByteVec};
use regex::bytes::{Regex, RegexBuilder, RegexSet};
use pathutil::{
file_name, file_name_ext, normalize_path, os_str_bytes, path_bytes,
};
use pathutil::{file_name, file_name_ext, normalize_path};
use glob::MatchStrategy;
pub use glob::{Glob, GlobBuilder, GlobMatcher};
@@ -143,8 +141,13 @@ pub struct Error {
/// The kind of error that can occur when parsing a glob pattern.
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ErrorKind {
/// Occurs when a use of `**` is invalid. Namely, `**` can only appear
/// adjacent to a path separator, or the beginning/end of a glob.
/// **DEPRECATED**.
///
/// This error used to occur for consistency with git's glob specification,
/// but the specification now accepts all uses of `**`. When `**` does not
/// appear adjacent to a path separator or at the beginning/end of a glob,
/// it is now treated as two consecutive `*` patterns. As such, this error
/// is no longer used.
InvalidRecursive,
/// Occurs when a character class (e.g., `[abc]`) is not closed.
UnclosedClass,
@@ -289,6 +292,7 @@ pub struct GlobSet {
impl GlobSet {
/// Create an empty `GlobSet`. An empty set matches nothing.
#[inline]
pub fn empty() -> GlobSet {
GlobSet {
len: 0,
@@ -297,11 +301,13 @@ impl GlobSet {
}
/// Returns true if this set is empty, and therefore matches nothing.
#[inline]
pub fn is_empty(&self) -> bool {
self.len == 0
}
/// Returns the number of globs in this set.
#[inline]
pub fn len(&self) -> usize {
self.len
}
@@ -470,7 +476,6 @@ impl GlobSetBuilder {
}
/// Add a new pattern to this set.
#[allow(dead_code)]
pub fn add(&mut self, pat: Glob) -> &mut GlobSetBuilder {
self.pats.push(pat);
self
@@ -493,12 +498,13 @@ pub struct Candidate<'a> {
impl<'a> Candidate<'a> {
/// Create a new candidate for matching from the given path.
pub fn new<P: AsRef<Path> + ?Sized>(path: &'a P) -> Candidate<'a> {
let path = path.as_ref();
let basename = file_name(path).unwrap_or(OsStr::new(""));
let path = normalize_path(Vec::from_path_lossy(path.as_ref()));
let basename = file_name(&path).unwrap_or(Cow::Borrowed(B("")));
let ext = file_name_ext(&basename).unwrap_or(Cow::Borrowed(B("")));
Candidate {
path: normalize_path(path_bytes(path)),
basename: os_str_bytes(basename),
ext: file_name_ext(basename).unwrap_or(Cow::Borrowed(b"")),
path: path,
basename: basename,
ext: ext,
}
}
@@ -571,12 +577,12 @@ impl LiteralStrategy {
}
fn is_match(&self, candidate: &Candidate) -> bool {
self.0.contains_key(&*candidate.path)
self.0.contains_key(candidate.path.as_bytes())
}
#[inline(never)]
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
if let Some(hits) = self.0.get(&*candidate.path) {
if let Some(hits) = self.0.get(candidate.path.as_bytes()) {
matches.extend(hits);
}
}
@@ -598,7 +604,7 @@ impl BasenameLiteralStrategy {
if candidate.basename.is_empty() {
return false;
}
self.0.contains_key(&*candidate.basename)
self.0.contains_key(candidate.basename.as_bytes())
}
#[inline(never)]
@@ -606,7 +612,7 @@ impl BasenameLiteralStrategy {
if candidate.basename.is_empty() {
return;
}
if let Some(hits) = self.0.get(&*candidate.basename) {
if let Some(hits) = self.0.get(candidate.basename.as_bytes()) {
matches.extend(hits);
}
}
@@ -628,7 +634,7 @@ impl ExtensionStrategy {
if candidate.ext.is_empty() {
return false;
}
self.0.contains_key(&*candidate.ext)
self.0.contains_key(candidate.ext.as_bytes())
}
#[inline(never)]
@@ -636,7 +642,7 @@ impl ExtensionStrategy {
if candidate.ext.is_empty() {
return;
}
if let Some(hits) = self.0.get(&*candidate.ext) {
if let Some(hits) = self.0.get(candidate.ext.as_bytes()) {
matches.extend(hits);
}
}
@@ -644,7 +650,7 @@ impl ExtensionStrategy {
#[derive(Clone, Debug)]
struct PrefixStrategy {
matcher: FullAcAutomaton<Vec<u8>>,
matcher: AhoCorasick,
map: Vec<usize>,
longest: usize,
}
@@ -652,8 +658,8 @@ struct PrefixStrategy {
impl PrefixStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
let path = candidate.path_prefix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.start == 0 {
for m in self.matcher.find_overlapping_iter(path) {
if m.start() == 0 {
return true;
}
}
@@ -662,9 +668,9 @@ impl PrefixStrategy {
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
let path = candidate.path_prefix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.start == 0 {
matches.push(self.map[m.pati]);
for m in self.matcher.find_overlapping_iter(path) {
if m.start() == 0 {
matches.push(self.map[m.pattern()]);
}
}
}
@@ -672,7 +678,7 @@ impl PrefixStrategy {
#[derive(Clone, Debug)]
struct SuffixStrategy {
matcher: FullAcAutomaton<Vec<u8>>,
matcher: AhoCorasick,
map: Vec<usize>,
longest: usize,
}
@@ -680,8 +686,8 @@ struct SuffixStrategy {
impl SuffixStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
let path = candidate.path_suffix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.end == path.len() {
for m in self.matcher.find_overlapping_iter(path) {
if m.end() == path.len() {
return true;
}
}
@@ -690,9 +696,9 @@ impl SuffixStrategy {
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
let path = candidate.path_suffix(self.longest);
for m in self.matcher.find_overlapping(path) {
if m.end == path.len() {
matches.push(self.map[m.pati]);
for m in self.matcher.find_overlapping_iter(path) {
if m.end() == path.len() {
matches.push(self.map[m.pattern()]);
}
}
}
@@ -706,11 +712,11 @@ impl RequiredExtensionStrategy {
if candidate.ext.is_empty() {
return false;
}
match self.0.get(&*candidate.ext) {
match self.0.get(candidate.ext.as_bytes()) {
None => false,
Some(regexes) => {
for &(_, ref re) in regexes {
if re.is_match(&*candidate.path) {
if re.is_match(candidate.path.as_bytes()) {
return true;
}
}
@@ -724,9 +730,9 @@ impl RequiredExtensionStrategy {
if candidate.ext.is_empty() {
return;
}
if let Some(regexes) = self.0.get(&*candidate.ext) {
if let Some(regexes) = self.0.get(candidate.ext.as_bytes()) {
for &(global_index, ref re) in regexes {
if re.is_match(&*candidate.path) {
if re.is_match(candidate.path.as_bytes()) {
matches.push(global_index);
}
}
@@ -742,11 +748,11 @@ struct RegexSetStrategy {
impl RegexSetStrategy {
fn is_match(&self, candidate: &Candidate) -> bool {
self.matcher.is_match(&*candidate.path)
self.matcher.is_match(candidate.path.as_bytes())
}
fn matches_into(&self, candidate: &Candidate, matches: &mut Vec<usize>) {
for i in self.matcher.matches(&*candidate.path) {
for i in self.matcher.matches(candidate.path.as_bytes()) {
matches.push(self.map[i]);
}
}
@@ -777,18 +783,16 @@ impl MultiStrategyBuilder {
}
fn prefix(self) -> PrefixStrategy {
let it = self.literals.into_iter().map(|s| s.into_bytes());
PrefixStrategy {
matcher: AcAutomaton::new(it).into_full(),
matcher: AhoCorasick::new_auto_configured(&self.literals),
map: self.map,
longest: self.longest,
}
}
fn suffix(self) -> SuffixStrategy {
let it = self.literals.into_iter().map(|s| s.into_bytes());
SuffixStrategy {
matcher: AcAutomaton::new(it).into_full(),
matcher: AhoCorasick::new_auto_configured(&self.literals),
map: self.map,
longest: self.longest,
}

99
globset/src/pathutil.rs
View File

@@ -1,41 +1,26 @@
use std::borrow::Cow;
use std::ffi::OsStr;
use std::path::Path;
use bstr::{ByteSlice, ByteVec};
/// The final component of the path, if it is a normal file.
///
/// If the path terminates in ., .., or consists solely of a root of prefix,
/// file_name will return None.
#[cfg(unix)]
pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
path: &'a P,
) -> Option<&'a OsStr> {
use std::os::unix::ffi::OsStrExt;
use memchr::memrchr;
let path = path.as_ref().as_os_str().as_bytes();
pub fn file_name<'a>(path: &Cow<'a, [u8]>) -> Option<Cow<'a, [u8]>> {
if path.is_empty() {
return None;
} else if path.len() == 1 && path[0] == b'.' {
return None;
} else if path.last() == Some(&b'.') {
return None;
} else if path.len() >= 2 && &path[path.len() - 2..] == &b".."[..] {
} else if path.last_byte() == Some(b'.') {
return None;
}
let last_slash = memrchr(b'/', path).map(|i| i + 1).unwrap_or(0);
Some(OsStr::from_bytes(&path[last_slash..]))
}
/// The final component of the path, if it is a normal file.
///
/// If the path terminates in ., .., or consists solely of a root of prefix,
/// file_name will return None.
#[cfg(not(unix))]
pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
path: &'a P,
) -> Option<&'a OsStr> {
path.as_ref().file_name()
let last_slash = path.rfind_byte(b'/').map(|i| i + 1).unwrap_or(0);
Some(match *path {
Cow::Borrowed(path) => Cow::Borrowed(&path[last_slash..]),
Cow::Owned(ref path) => {
let mut path = path.clone();
path.drain_bytes(..last_slash);
Cow::Owned(path)
}
})
}
/// Return a file extension given a path's file name.
@@ -54,55 +39,24 @@ pub fn file_name<'a, P: AsRef<Path> + ?Sized>(
/// a pattern like `*.rs` is obviously trying to match files with a `rs`
/// extension, but it also matches files like `.rs`, which doesn't have an
/// extension according to std::path::Path::extension.
pub fn file_name_ext(name: &OsStr) -> Option<Cow<[u8]>> {
pub fn file_name_ext<'a>(name: &Cow<'a, [u8]>) -> Option<Cow<'a, [u8]>> {
if name.is_empty() {
return None;
}
let name = os_str_bytes(name);
let last_dot_at = {
let result = name
.iter().enumerate().rev()
.find(|&(_, &b)| b == b'.')
.map(|(i, _)| i);
match result {
None => return None,
Some(i) => i,
}
let last_dot_at = match name.rfind_byte(b'.') {
None => return None,
Some(i) => i,
};
Some(match name {
Some(match *name {
Cow::Borrowed(name) => Cow::Borrowed(&name[last_dot_at..]),
Cow::Owned(mut name) => {
name.drain(..last_dot_at);
Cow::Owned(ref name) => {
let mut name = name.clone();
name.drain_bytes(..last_dot_at);
Cow::Owned(name)
}
})
}
/// Return raw bytes of a path, transcoded to UTF-8 if necessary.
pub fn path_bytes(path: &Path) -> Cow<[u8]> {
os_str_bytes(path.as_os_str())
}
/// Return the raw bytes of the given OS string, possibly transcoded to UTF-8.
#[cfg(unix)]
pub fn os_str_bytes(s: &OsStr) -> Cow<[u8]> {
use std::os::unix::ffi::OsStrExt;
Cow::Borrowed(s.as_bytes())
}
/// Return the raw bytes of the given OS string, possibly transcoded to UTF-8.
#[cfg(not(unix))]
pub fn os_str_bytes(s: &OsStr) -> Cow<[u8]> {
// TODO(burntsushi): On Windows, OS strings are WTF-8, which is a superset
// of UTF-8, so even if we could get at the raw bytes, they wouldn't
// be useful. We *must* convert to UTF-8 before doing path matching.
// Unfortunate, but necessary.
match s.to_string_lossy() {
Cow::Owned(s) => Cow::Owned(s.into_bytes()),
Cow::Borrowed(s) => Cow::Borrowed(s.as_bytes()),
}
}
/// Normalizes a path to use `/` as a separator everywhere, even on platforms
/// that recognize other characters as separators.
#[cfg(unix)]
@@ -129,7 +83,8 @@ pub fn normalize_path(mut path: Cow<[u8]>) -> Cow<[u8]> {
#[cfg(test)]
mod tests {
use std::borrow::Cow;
use std::ffi::OsStr;
use bstr::{B, ByteVec};
use super::{file_name_ext, normalize_path};
@@ -137,8 +92,9 @@ mod tests {
($name:ident, $file_name:expr, $ext:expr) => {
#[test]
fn $name() {
let got = file_name_ext(OsStr::new($file_name));
assert_eq!($ext.map(|s| Cow::Borrowed(s.as_bytes())), got);
let bs = Vec::from($file_name);
let got = file_name_ext(&Cow::Owned(bs));
assert_eq!($ext.map(|s| Cow::Borrowed(B(s))), got);
}
};
}
@@ -153,7 +109,8 @@ mod tests {
($name:ident, $path:expr, $expected:expr) => {
#[test]
fn $name() {
let got = normalize_path(Cow::Owned($path.to_vec()));
let bs = Vec::from_slice($path);
let got = normalize_path(Cow::Owned(bs));
assert_eq!($expected.to_vec(), got.into_owned());
}
};

26
grep-cli/Cargo.toml Normal file
View File

@@ -0,0 +1,26 @@
[package]
name = "grep-cli"
version = "0.1.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Utilities for search oriented command line applications.
"""
documentation = "https://docs.rs/grep-cli"
homepage = "https://github.com/BurntSushi/ripgrep"
repository = "https://github.com/BurntSushi/ripgrep"
readme = "README.md"
keywords = ["regex", "grep", "cli", "utility", "util"]
license = "Unlicense/MIT"
[dependencies]
atty = "0.2.11"
bstr = "0.2.0"
globset = { version = "0.4.3", path = "../globset" }
lazy_static = "1.1.0"
log = "0.4.5"
regex = "1.1"
same-file = "1.0.4"
termcolor = "1.0.4"
[target.'cfg(windows)'.dependencies.winapi-util]
version = "0.1.1"

21
grep-cli/LICENSE-MIT Normal file
View File

@@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2015 Andrew Gallant
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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grep-cli
--------
A utility library that provides common routines desired in search oriented
command line applications. This includes, but is not limited to, parsing hex
escapes, detecting whether stdin is readable and more. To the extent possible,
this crate strives for compatibility across Windows, macOS and Linux.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-cli.svg)](https://crates.io/crates/grep-cli)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-cli](https://docs.rs/grep-cli)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-cli = "0.1"
```
and this to your crate root:
```rust
extern crate grep_cli;
```

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This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>

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use std::ffi::{OsStr, OsString};
use std::fs::File;
use std::io;
use std::path::Path;
use std::process::Command;
use globset::{Glob, GlobSet, GlobSetBuilder};
use process::{CommandError, CommandReader, CommandReaderBuilder};
/// A builder for a matcher that determines which files get decompressed.
#[derive(Clone, Debug)]
pub struct DecompressionMatcherBuilder {
/// The commands for each matching glob.
commands: Vec<DecompressionCommand>,
/// Whether to include the default matching rules.
defaults: bool,
}
/// A representation of a single command for decompressing data
/// out-of-proccess.
#[derive(Clone, Debug)]
struct DecompressionCommand {
/// The glob that matches this command.
glob: String,
/// The command or binary name.
bin: OsString,
/// The arguments to invoke with the command.
args: Vec<OsString>,
}
impl Default for DecompressionMatcherBuilder {
fn default() -> DecompressionMatcherBuilder {
DecompressionMatcherBuilder::new()
}
}
impl DecompressionMatcherBuilder {
/// Create a new builder for configuring a decompression matcher.
pub fn new() -> DecompressionMatcherBuilder {
DecompressionMatcherBuilder {
commands: vec![],
defaults: true,
}
}
/// Build a matcher for determining how to decompress files.
///
/// If there was a problem compiling the matcher, then an error is
/// returned.
pub fn build(&self) -> Result<DecompressionMatcher, CommandError> {
let defaults =
if !self.defaults {
vec![]
} else {
default_decompression_commands()
};
let mut glob_builder = GlobSetBuilder::new();
let mut commands = vec![];
for decomp_cmd in defaults.iter().chain(&self.commands) {
let glob = Glob::new(&decomp_cmd.glob).map_err(|err| {
CommandError::io(io::Error::new(io::ErrorKind::Other, err))
})?;
glob_builder.add(glob);
commands.push(decomp_cmd.clone());
}
let globs = glob_builder.build().map_err(|err| {
CommandError::io(io::Error::new(io::ErrorKind::Other, err))
})?;
Ok(DecompressionMatcher { globs, commands })
}
/// When enabled, the default matching rules will be compiled into this
/// matcher before any other associations. When disabled, only the
/// rules explicitly given to this builder will be used.
///
/// This is enabled by default.
pub fn defaults(&mut self, yes: bool) -> &mut DecompressionMatcherBuilder {
self.defaults = yes;
self
}
/// Associates a glob with a command to decompress files matching the glob.
///
/// If multiple globs match the same file, then the most recently added
/// glob takes precedence.
///
/// The syntax for the glob is documented in the
/// [`globset` crate](https://docs.rs/globset/#syntax).
pub fn associate<P, I, A>(
&mut self,
glob: &str,
program: P,
args: I,
) -> &mut DecompressionMatcherBuilder
where P: AsRef<OsStr>,
I: IntoIterator<Item=A>,
A: AsRef<OsStr>,
{
let glob = glob.to_string();
let bin = program.as_ref().to_os_string();
let args = args
.into_iter()
.map(|a| a.as_ref().to_os_string())
.collect();
self.commands.push(DecompressionCommand { glob, bin, args });
self
}
}
/// A matcher for determining how to decompress files.
#[derive(Clone, Debug)]
pub struct DecompressionMatcher {
/// The set of globs to match. Each glob has a corresponding entry in
/// `commands`. When a glob matches, the corresponding command should be
/// used to perform out-of-process decompression.
globs: GlobSet,
/// The commands for each matching glob.
commands: Vec<DecompressionCommand>,
}
impl Default for DecompressionMatcher {
fn default() -> DecompressionMatcher {
DecompressionMatcher::new()
}
}
impl DecompressionMatcher {
/// Create a new matcher with default rules.
///
/// To add more matching rules, build a matcher with
/// [`DecompressionMatcherBuilder`](struct.DecompressionMatcherBuilder.html).
pub fn new() -> DecompressionMatcher {
DecompressionMatcherBuilder::new()
.build()
.expect("built-in matching rules should always compile")
}
/// Return a pre-built command based on the given file path that can
/// decompress its contents. If no such decompressor is known, then this
/// returns `None`.
///
/// If there are multiple possible commands matching the given path, then
/// the command added last takes precedence.
pub fn command<P: AsRef<Path>>(&self, path: P) -> Option<Command> {
for i in self.globs.matches(path).into_iter().rev() {
let decomp_cmd = &self.commands[i];
let mut cmd = Command::new(&decomp_cmd.bin);
cmd.args(&decomp_cmd.args);
return Some(cmd);
}
None
}
/// Returns true if and only if the given file path has at least one
/// matching command to perform decompression on.
pub fn has_command<P: AsRef<Path>>(&self, path: P) -> bool {
self.globs.is_match(path)
}
}
/// Configures and builds a streaming reader for decompressing data.
#[derive(Clone, Debug, Default)]
pub struct DecompressionReaderBuilder {
matcher: DecompressionMatcher,
command_builder: CommandReaderBuilder,
}
impl DecompressionReaderBuilder {
/// Create a new builder with the default configuration.
pub fn new() -> DecompressionReaderBuilder {
DecompressionReaderBuilder::default()
}
/// Build a new streaming reader for decompressing data.
///
/// If decompression is done out-of-process and if there was a problem
/// spawning the process, then its error is logged at the debug level and a
/// passthru reader is returned that does no decompression. This behavior
/// typically occurs when the given file path matches a decompression
/// command, but is executing in an environment where the decompression
/// command is not available.
///
/// If the given file path could not be matched with a decompression
/// strategy, then a passthru reader is returned that does no
/// decompression.
pub fn build<P: AsRef<Path>>(
&self,
path: P,
) -> Result<DecompressionReader, CommandError> {
let path = path.as_ref();
let mut cmd = match self.matcher.command(path) {
None => return DecompressionReader::new_passthru(path),
Some(cmd) => cmd,
};
cmd.arg(path);
match self.command_builder.build(&mut cmd) {
Ok(cmd_reader) => Ok(DecompressionReader { rdr: Ok(cmd_reader) }),
Err(err) => {
debug!(
"{}: error spawning command '{:?}': {} \
(falling back to uncompressed reader)",
path.display(),
cmd,
err,
);
DecompressionReader::new_passthru(path)
}
}
}
/// Set the matcher to use to look up the decompression command for each
/// file path.
///
/// A set of sensible rules is enabled by default. Setting this will
/// completely replace the current rules.
pub fn matcher(
&mut self,
matcher: DecompressionMatcher,
) -> &mut DecompressionReaderBuilder {
self.matcher = matcher;
self
}
/// Get the underlying matcher currently used by this builder.
pub fn get_matcher(&self) -> &DecompressionMatcher {
&self.matcher
}
/// When enabled, the reader will asynchronously read the contents of the
/// command's stderr output. When disabled, stderr is only read after the
/// stdout stream has been exhausted (or if the process quits with an error
/// code).
///
/// Note that when enabled, this may require launching an additional
/// thread in order to read stderr. This is done so that the process being
/// executed is never blocked from writing to stdout or stderr. If this is
/// disabled, then it is possible for the process to fill up the stderr
/// buffer and deadlock.
///
/// This is enabled by default.
pub fn async_stderr(
&mut self,
yes: bool,
) -> &mut DecompressionReaderBuilder {
self.command_builder.async_stderr(yes);
self
}
}
/// A streaming reader for decompressing the contents of a file.
///
/// The purpose of this reader is to provide a seamless way to decompress the
/// contents of file using existing tools in the current environment. This is
/// meant to be an alternative to using decompression libraries in favor of the
/// simplicity and portability of using external commands such as `gzip` and
/// `xz`. This does impose the overhead of spawning a process, so other means
/// for performing decompression should be sought if this overhead isn't
/// acceptable.
///
/// A decompression reader comes with a default set of matching rules that are
/// meant to associate file paths with the corresponding command to use to
/// decompress them. For example, a glob like `*.gz` matches gzip compressed
/// files with the command `gzip -d -c`. If a file path does not match any
/// existing rules, or if it matches a rule whose command does not exist in the
/// current environment, then the decompression reader passes through the
/// contents of the underlying file without doing any decompression.
///
/// The default matching rules are probably good enough for most cases, and if
/// they require revision, pull requests are welcome. In cases where they must
/// be changed or extended, they can be customized through the use of
/// [`DecompressionMatcherBuilder`](struct.DecompressionMatcherBuilder.html)
/// and
/// [`DecompressionReaderBuilder`](struct.DecompressionReaderBuilder.html).
///
/// By default, this reader will asynchronously read the processes' stderr.
/// This prevents subtle deadlocking bugs for noisy processes that write a lot
/// to stderr. Currently, the entire contents of stderr is read on to the heap.
///
/// # Example
///
/// This example shows how to read the decompressed contents of a file without
/// needing to explicitly choose the decompression command to run.
///
/// Note that if you need to decompress multiple files, it is better to use
/// `DecompressionReaderBuilder`, which will amortize the cost of compiling the
/// matcher.
///
/// ```no_run
/// use std::io::Read;
/// use std::process::Command;
/// use grep_cli::DecompressionReader;
///
/// # fn example() -> Result<(), Box<::std::error::Error>> {
/// let mut rdr = DecompressionReader::new("/usr/share/man/man1/ls.1.gz")?;
/// let mut contents = vec![];
/// rdr.read_to_end(&mut contents)?;
/// # Ok(()) }
/// ```
#[derive(Debug)]
pub struct DecompressionReader {
rdr: Result<CommandReader, File>,
}
impl DecompressionReader {
/// Build a new streaming reader for decompressing data.
///
/// If decompression is done out-of-process and if there was a problem
/// spawning the process, then its error is returned.
///
/// If the given file path could not be matched with a decompression
/// strategy, then a passthru reader is returned that does no
/// decompression.
///
/// This uses the default matching rules for determining how to decompress
/// the given file. To change those matching rules, use
/// [`DecompressionReaderBuilder`](struct.DecompressionReaderBuilder.html)
/// and
/// [`DecompressionMatcherBuilder`](struct.DecompressionMatcherBuilder.html).
///
/// When creating readers for many paths. it is better to use the builder
/// since it will amortize the cost of constructing the matcher.
pub fn new<P: AsRef<Path>>(
path: P,
) -> Result<DecompressionReader, CommandError> {
DecompressionReaderBuilder::new().build(path)
}
/// Creates a new "passthru" decompression reader that reads from the file
/// corresponding to the given path without doing decompression and without
/// executing another process.
fn new_passthru(path: &Path) -> Result<DecompressionReader, CommandError> {
let file = File::open(path)?;
Ok(DecompressionReader { rdr: Err(file) })
}
}
impl io::Read for DecompressionReader {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
match self.rdr {
Ok(ref mut rdr) => rdr.read(buf),
Err(ref mut rdr) => rdr.read(buf),
}
}
}
fn default_decompression_commands() -> Vec<DecompressionCommand> {
const ARGS_GZIP: &[&str] = &["gzip", "-d", "-c"];
const ARGS_BZIP: &[&str] = &["bzip2", "-d", "-c"];
const ARGS_XZ: &[&str] = &["xz", "-d", "-c"];
const ARGS_LZ4: &[&str] = &["lz4", "-d", "-c"];
const ARGS_LZMA: &[&str] = &["xz", "--format=lzma", "-d", "-c"];
const ARGS_BROTLI: &[&str] = &["brotli", "-d", "-c"];
const ARGS_ZSTD: &[&str] = &["zstd", "-q", "-d", "-c"];
fn cmd(glob: &str, args: &[&str]) -> DecompressionCommand {
DecompressionCommand {
glob: glob.to_string(),
bin: OsStr::new(&args[0]).to_os_string(),
args: args
.iter()
.skip(1)
.map(|s| OsStr::new(s).to_os_string())
.collect(),
}
}
vec![
cmd("*.gz", ARGS_GZIP),
cmd("*.tgz", ARGS_GZIP),
cmd("*.bz2", ARGS_BZIP),
cmd("*.tbz2", ARGS_BZIP),
cmd("*.xz", ARGS_XZ),
cmd("*.txz", ARGS_XZ),
cmd("*.lz4", ARGS_LZ4),
cmd("*.lzma", ARGS_LZMA),
cmd("*.br", ARGS_BROTLI),
cmd("*.zst", ARGS_ZSTD),
cmd("*.zstd", ARGS_ZSTD),
]
}

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use std::ffi::OsStr;
use std::str;
use bstr::{ByteSlice, ByteVec};
/// A single state in the state machine used by `unescape`.
#[derive(Clone, Copy, Eq, PartialEq)]
enum State {
/// The state after seeing a `\`.
Escape,
/// The state after seeing a `\x`.
HexFirst,
/// The state after seeing a `\x[0-9A-Fa-f]`.
HexSecond(char),
/// Default state.
Literal,
}
/// Escapes arbitrary bytes into a human readable string.
///
/// This converts `\t`, `\r` and `\n` into their escaped forms. It also
/// converts the non-printable subset of ASCII in addition to invalid UTF-8
/// bytes to hexadecimal escape sequences. Everything else is left as is.
///
/// The dual of this routine is [`unescape`](fn.unescape.html).
///
/// # Example
///
/// This example shows how to convert a byte string that contains a `\n` and
/// invalid UTF-8 bytes into a `String`.
///
/// Pay special attention to the use of raw strings. That is, `r"\n"` is
/// equivalent to `"\\n"`.
///
/// ```
/// use grep_cli::escape;
///
/// assert_eq!(r"foo\nbar\xFFbaz", escape(b"foo\nbar\xFFbaz"));
/// ```
pub fn escape(bytes: &[u8]) -> String {
let mut escaped = String::new();
for (s, e, ch) in bytes.char_indices() {
if ch == '\u{FFFD}' {
for b in bytes[s..e].bytes() {
escape_byte(b, &mut escaped);
}
} else {
escape_char(ch, &mut escaped);
}
}
escaped
}
/// Escapes an OS string into a human readable string.
///
/// This is like [`escape`](fn.escape.html), but accepts an OS string.
pub fn escape_os(string: &OsStr) -> String {
escape(Vec::from_os_str_lossy(string).as_bytes())
}
/// Unescapes a string.
///
/// It supports a limited set of escape sequences:
///
/// * `\t`, `\r` and `\n` are mapped to their corresponding ASCII bytes.
/// * `\xZZ` hexadecimal escapes are mapped to their byte.
///
/// Everything else is left as is, including non-hexadecimal escapes like
/// `\xGG`.
///
/// This is useful when it is desirable for a command line argument to be
/// capable of specifying arbitrary bytes or otherwise make it easier to
/// specify non-printable characters.
///
/// The dual of this routine is [`escape`](fn.escape.html).
///
/// # Example
///
/// This example shows how to convert an escaped string (which is valid UTF-8)
/// into a corresponding sequence of bytes. Each escape sequence is mapped to
/// its bytes, which may include invalid UTF-8.
///
/// Pay special attention to the use of raw strings. That is, `r"\n"` is
/// equivalent to `"\\n"`.
///
/// ```
/// use grep_cli::unescape;
///
/// assert_eq!(&b"foo\nbar\xFFbaz"[..], &*unescape(r"foo\nbar\xFFbaz"));
/// ```
pub fn unescape(s: &str) -> Vec<u8> {
use self::State::*;
let mut bytes = vec![];
let mut state = Literal;
for c in s.chars() {
match state {
Escape => {
match c {
'\\' => { bytes.push(b'\\'); state = Literal; }
'n' => { bytes.push(b'\n'); state = Literal; }
'r' => { bytes.push(b'\r'); state = Literal; }
't' => { bytes.push(b'\t'); state = Literal; }
'x' => { state = HexFirst; }
c => {
bytes.extend(format!(r"\{}", c).into_bytes());
state = Literal;
}
}
}
HexFirst => {
match c {
'0'..='9' | 'A'..='F' | 'a'..='f' => {
state = HexSecond(c);
}
c => {
bytes.extend(format!(r"\x{}", c).into_bytes());
state = Literal;
}
}
}
HexSecond(first) => {
match c {
'0'..='9' | 'A'..='F' | 'a'..='f' => {
let ordinal = format!("{}{}", first, c);
let byte = u8::from_str_radix(&ordinal, 16).unwrap();
bytes.push(byte);
state = Literal;
}
c => {
let original = format!(r"\x{}{}", first, c);
bytes.extend(original.into_bytes());
state = Literal;
}
}
}
Literal => {
match c {
'\\' => { state = Escape; }
c => { bytes.extend(c.to_string().as_bytes()); }
}
}
}
}
match state {
Escape => bytes.push(b'\\'),
HexFirst => bytes.extend(b"\\x"),
HexSecond(c) => bytes.extend(format!("\\x{}", c).into_bytes()),
Literal => {}
}
bytes
}
/// Unescapes an OS string.
///
/// This is like [`unescape`](fn.unescape.html), but accepts an OS string.
///
/// Note that this first lossily decodes the given OS string as UTF-8. That
/// is, an escaped string (the thing given) should be valid UTF-8.
pub fn unescape_os(string: &OsStr) -> Vec<u8> {
unescape(&string.to_string_lossy())
}
/// Adds the given codepoint to the given string, escaping it if necessary.
fn escape_char(cp: char, into: &mut String) {
if cp.is_ascii() {
escape_byte(cp as u8, into);
} else {
into.push(cp);
}
}
/// Adds the given byte to the given string, escaping it if necessary.
fn escape_byte(byte: u8, into: &mut String) {
match byte {
0x21..=0x5B | 0x5D..=0x7D => into.push(byte as char),
b'\n' => into.push_str(r"\n"),
b'\r' => into.push_str(r"\r"),
b'\t' => into.push_str(r"\t"),
b'\\' => into.push_str(r"\\"),
_ => into.push_str(&format!(r"\x{:02X}", byte)),
}
}
#[cfg(test)]
mod tests {
use super::{escape, unescape};
fn b(bytes: &'static [u8]) -> Vec<u8> {
bytes.to_vec()
}
#[test]
fn empty() {
assert_eq!(b(b""), unescape(r""));
assert_eq!(r"", escape(b""));
}
#[test]
fn backslash() {
assert_eq!(b(b"\\"), unescape(r"\\"));
assert_eq!(r"\\", escape(b"\\"));
}
#[test]
fn nul() {
assert_eq!(b(b"\x00"), unescape(r"\x00"));
assert_eq!(r"\x00", escape(b"\x00"));
}
#[test]
fn nl() {
assert_eq!(b(b"\n"), unescape(r"\n"));
assert_eq!(r"\n", escape(b"\n"));
}
#[test]
fn tab() {
assert_eq!(b(b"\t"), unescape(r"\t"));
assert_eq!(r"\t", escape(b"\t"));
}
#[test]
fn carriage() {
assert_eq!(b(b"\r"), unescape(r"\r"));
assert_eq!(r"\r", escape(b"\r"));
}
#[test]
fn nothing_simple() {
assert_eq!(b(b"\\a"), unescape(r"\a"));
assert_eq!(b(b"\\a"), unescape(r"\\a"));
assert_eq!(r"\\a", escape(b"\\a"));
}
#[test]
fn nothing_hex0() {
assert_eq!(b(b"\\x"), unescape(r"\x"));
assert_eq!(b(b"\\x"), unescape(r"\\x"));
assert_eq!(r"\\x", escape(b"\\x"));
}
#[test]
fn nothing_hex1() {
assert_eq!(b(b"\\xz"), unescape(r"\xz"));
assert_eq!(b(b"\\xz"), unescape(r"\\xz"));
assert_eq!(r"\\xz", escape(b"\\xz"));
}
#[test]
fn nothing_hex2() {
assert_eq!(b(b"\\xzz"), unescape(r"\xzz"));
assert_eq!(b(b"\\xzz"), unescape(r"\\xzz"));
assert_eq!(r"\\xzz", escape(b"\\xzz"));
}
#[test]
fn invalid_utf8() {
assert_eq!(r"\xFF", escape(b"\xFF"));
assert_eq!(r"a\xFFb", escape(b"a\xFFb"));
}
}

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use std::error;
use std::fmt;
use std::io;
use std::num::ParseIntError;
use regex::Regex;
/// An error that occurs when parsing a human readable size description.
///
/// This error provides a end user friendly message describing why the
/// description coudln't be parsed and what the expected format is.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct ParseSizeError {
original: String,
kind: ParseSizeErrorKind,
}
#[derive(Clone, Debug, Eq, PartialEq)]
enum ParseSizeErrorKind {
InvalidFormat,
InvalidInt(ParseIntError),
Overflow,
}
impl ParseSizeError {
fn format(original: &str) -> ParseSizeError {
ParseSizeError {
original: original.to_string(),
kind: ParseSizeErrorKind::InvalidFormat,
}
}
fn int(original: &str, err: ParseIntError) -> ParseSizeError {
ParseSizeError {
original: original.to_string(),
kind: ParseSizeErrorKind::InvalidInt(err),
}
}
fn overflow(original: &str) -> ParseSizeError {
ParseSizeError {
original: original.to_string(),
kind: ParseSizeErrorKind::Overflow,
}
}
}
impl error::Error for ParseSizeError {
fn description(&self) -> &str { "invalid size" }
}
impl fmt::Display for ParseSizeError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use self::ParseSizeErrorKind::*;
match self.kind {
InvalidFormat => {
write!(
f,
"invalid format for size '{}', which should be a sequence \
of digits followed by an optional 'K', 'M' or 'G' \
suffix",
self.original
)
}
InvalidInt(ref err) => {
write!(
f,
"invalid integer found in size '{}': {}",
self.original,
err
)
}
Overflow => {
write!(f, "size too big in '{}'", self.original)
}
}
}
}
impl From<ParseSizeError> for io::Error {
fn from(size_err: ParseSizeError) -> io::Error {
io::Error::new(io::ErrorKind::Other, size_err)
}
}
/// Parse a human readable size like `2M` into a corresponding number of bytes.
///
/// Supported size suffixes are `K` (for kilobyte), `M` (for megabyte) and `G`
/// (for gigabyte). If a size suffix is missing, then the size is interpreted
/// as bytes. If the size is too big to fit into a `u64`, then this returns an
/// error.
///
/// Additional suffixes may be added over time.
pub fn parse_human_readable_size(size: &str) -> Result<u64, ParseSizeError> {
lazy_static! {
// Normally I'd just parse something this simple by hand to avoid the
// regex dep, but we bring regex in any way for glob matching, so might
// as well use it.
static ref RE: Regex = Regex::new(r"^([0-9]+)([KMG])?$").unwrap();
}
let caps = match RE.captures(size) {
Some(caps) => caps,
None => return Err(ParseSizeError::format(size)),
};
let value: u64 = caps[1].parse().map_err(|err| {
ParseSizeError::int(size, err)
})?;
let suffix = match caps.get(2) {
None => return Ok(value),
Some(cap) => cap.as_str(),
};
let bytes = match suffix {
"K" => value.checked_mul(1<<10),
"M" => value.checked_mul(1<<20),
"G" => value.checked_mul(1<<30),
// Because if the regex matches this group, it must be [KMG].
_ => unreachable!(),
};
bytes.ok_or_else(|| ParseSizeError::overflow(size))
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn suffix_none() {
let x = parse_human_readable_size("123").unwrap();
assert_eq!(123, x);
}
#[test]
fn suffix_k() {
let x = parse_human_readable_size("123K").unwrap();
assert_eq!(123 * (1<<10), x);
}
#[test]
fn suffix_m() {
let x = parse_human_readable_size("123M").unwrap();
assert_eq!(123 * (1<<20), x);
}
#[test]
fn suffix_g() {
let x = parse_human_readable_size("123G").unwrap();
assert_eq!(123 * (1<<30), x);
}
#[test]
fn invalid_empty() {
assert!(parse_human_readable_size("").is_err());
}
#[test]
fn invalid_non_digit() {
assert!(parse_human_readable_size("a").is_err());
}
#[test]
fn invalid_overflow() {
assert!(parse_human_readable_size("9999999999999999G").is_err());
}
#[test]
fn invalid_suffix() {
assert!(parse_human_readable_size("123T").is_err());
}
}

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/*!
This crate provides common routines used in command line applications, with a
focus on routines useful for search oriented applications. As a utility
library, there is no central type or function. However, a key focus of this
crate is to improve failure modes and provide user friendly error messages
when things go wrong.
To the best extent possible, everything in this crate works on Windows, macOS
and Linux.
# Standard I/O
The
[`is_readable_stdin`](fn.is_readable_stdin.html),
[`is_tty_stderr`](fn.is_tty_stderr.html),
[`is_tty_stdin`](fn.is_tty_stdin.html)
and
[`is_tty_stdout`](fn.is_tty_stdout.html)
routines query aspects of standard I/O. `is_readable_stdin` determines whether
stdin can be usefully read from, while the `tty` methods determine whether a
tty is attached to stdin/stdout/stderr.
`is_readable_stdin` is useful when writing an application that changes behavior
based on whether the application was invoked with data on stdin. For example,
`rg foo` might recursively search the current working directory for
occurrences of `foo`, but `rg foo < file` might only search the contents of
`file`.
The `tty` methods are useful for similar reasons. Namely, commands like `ls`
will change their output depending on whether they are printing to a terminal
or not. For example, `ls` shows a file on each line when stdout is redirected
to a file or a pipe, but condenses the output to show possibly many files on
each line when stdout is connected to a tty.
# Coloring and buffering
The
[`stdout`](fn.stdout.html),
[`stdout_buffered_block`](fn.stdout_buffered_block.html)
and
[`stdout_buffered_line`](fn.stdout_buffered_line.html)
routines are alternative constructors for
[`StandardStream`](struct.StandardStream.html).
A `StandardStream` implements `termcolor::WriteColor`, which provides a way
to emit colors to terminals. Its key use is the encapsulation of buffering
style. Namely, `stdout` will return a line buffered `StandardStream` if and
only if stdout is connected to a tty, and will otherwise return a block
buffered `StandardStream`. Line buffering is important for use with a tty
because it typically decreases the latency at which the end user sees output.
Block buffering is used otherwise because it is faster, and redirecting stdout
to a file typically doesn't benefit from the decreased latency that line
buffering provides.
The `stdout_buffered_block` and `stdout_buffered_line` can be used to
explicitly set the buffering strategy regardless of whether stdout is connected
to a tty or not.
# Escaping
The
[`escape`](fn.escape.html),
[`escape_os`](fn.escape_os.html),
[`unescape`](fn.unescape.html)
and
[`unescape_os`](fn.unescape_os.html)
routines provide a user friendly way of dealing with UTF-8 encoded strings that
can express arbitrary bytes. For example, you might want to accept a string
containing arbitrary bytes as a command line argument, but most interactive
shells make such strings difficult to type. Instead, we can ask users to use
escape sequences.
For example, `a\xFFz` is itself a valid UTF-8 string corresponding to the
following bytes:
```ignore
[b'a', b'\\', b'x', b'F', b'F', b'z']
```
However, we can
interpret `\xFF` as an escape sequence with the `unescape`/`unescape_os`
routines, which will yield
```ignore
[b'a', b'\xFF', b'z']
```
instead. For example:
```
use grep_cli::unescape;
// Note the use of a raw string!
assert_eq!(vec![b'a', b'\xFF', b'z'], unescape(r"a\xFFz"));
```
The `escape`/`escape_os` routines provide the reverse transformation, which
makes it easy to show user friendly error messages involving arbitrary bytes.
# Building patterns
Typically, regular expression patterns must be valid UTF-8. However, command
line arguments aren't guaranteed to be valid UTF-8. Unfortunately, the
standard library's UTF-8 conversion functions from `OsStr`s do not provide
good error messages. However, the
[`pattern_from_bytes`](fn.pattern_from_bytes.html)
and
[`pattern_from_os`](fn.pattern_from_os.html)
do, including reporting exactly where the first invalid UTF-8 byte is seen.
Additionally, it can be useful to read patterns from a file while reporting
good error messages that include line numbers. The
[`patterns_from_path`](fn.patterns_from_path.html),
[`patterns_from_reader`](fn.patterns_from_reader.html)
and
[`patterns_from_stdin`](fn.patterns_from_stdin.html)
routines do just that. If any pattern is found that is invalid UTF-8, then the
error includes the file path (if available) along with the line number and the
byte offset at which the first invalid UTF-8 byte was observed.
# Read process output
Sometimes a command line application needs to execute other processes and read
its stdout in a streaming fashion. The
[`CommandReader`](struct.CommandReader.html)
provides this functionality with an explicit goal of improving failure modes.
In particular, if the process exits with an error code, then stderr is read
and converted into a normal Rust error to show to end users. This makes the
underlying failure modes explicit and gives more information to end users for
debugging the problem.
As a special case,
[`DecompressionReader`](struct.DecompressionReader.html)
provides a way to decompress arbitrary files by matching their file extensions
up with corresponding decompression programs (such as `gzip` and `xz`). This
is useful as a means of performing simplistic decompression in a portable
manner without binding to specific compression libraries. This does come with
some overhead though, so if you need to decompress lots of small files, this
may not be an appropriate convenience to use.
Each reader has a corresponding builder for additional configuration, such as
whether to read stderr asynchronously in order to avoid deadlock (which is
enabled by default).
# Miscellaneous parsing
The
[`parse_human_readable_size`](fn.parse_human_readable_size.html)
routine parses strings like `2M` and converts them to the corresponding number
of bytes (`2 * 1<<20` in this case). If an invalid size is found, then a good
error message is crafted that typically tells the user how to fix the problem.
*/
#![deny(missing_docs)]
extern crate atty;
extern crate bstr;
extern crate globset;
#[macro_use]
extern crate lazy_static;
#[macro_use]
extern crate log;
extern crate regex;
extern crate same_file;
extern crate termcolor;
#[cfg(windows)]
extern crate winapi_util;
mod decompress;
mod escape;
mod human;
mod pattern;
mod process;
mod wtr;
pub use decompress::{
DecompressionMatcher, DecompressionMatcherBuilder,
DecompressionReader, DecompressionReaderBuilder,
};
pub use escape::{escape, escape_os, unescape, unescape_os};
pub use human::{ParseSizeError, parse_human_readable_size};
pub use pattern::{
InvalidPatternError,
pattern_from_os, pattern_from_bytes,
patterns_from_path, patterns_from_reader, patterns_from_stdin,
};
pub use process::{CommandError, CommandReader, CommandReaderBuilder};
pub use wtr::{
StandardStream,
stdout, stdout_buffered_line, stdout_buffered_block,
};
/// Returns true if and only if stdin is believed to be readable.
///
/// When stdin is readable, command line programs may choose to behave
/// differently than when stdin is not readable. For example, `command foo`
/// might search the current directory for occurrences of `foo` where as
/// `command foo < some-file` or `cat some-file | command foo` might instead
/// only search stdin for occurrences of `foo`.
pub fn is_readable_stdin() -> bool {
#[cfg(unix)]
fn imp() -> bool {
use std::os::unix::fs::FileTypeExt;
use same_file::Handle;
let ft = match Handle::stdin().and_then(|h| h.as_file().metadata()) {
Err(_) => return false,
Ok(md) => md.file_type(),
};
ft.is_file() || ft.is_fifo()
}
#[cfg(windows)]
fn imp() -> bool {
use winapi_util as winutil;
winutil::file::typ(winutil::HandleRef::stdin())
.map(|t| t.is_disk() || t.is_pipe())
.unwrap_or(false)
}
!is_tty_stdin() && imp()
}
/// Returns true if and only if stdin is believed to be connectted to a tty
/// or a console.
pub fn is_tty_stdin() -> bool {
atty::is(atty::Stream::Stdin)
}
/// Returns true if and only if stdout is believed to be connectted to a tty
/// or a console.
///
/// This is useful for when you want your command line program to produce
/// different output depending on whether it's printing directly to a user's
/// terminal or whether it's being redirected somewhere else. For example,
/// implementations of `ls` will often show one item per line when stdout is
/// redirected, but will condensed output when printing to a tty.
pub fn is_tty_stdout() -> bool {
atty::is(atty::Stream::Stdout)
}
/// Returns true if and only if stderr is believed to be connectted to a tty
/// or a console.
pub fn is_tty_stderr() -> bool {
atty::is(atty::Stream::Stderr)
}

201
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use std::error;
use std::ffi::OsStr;
use std::fmt;
use std::fs::File;
use std::io;
use std::path::Path;
use std::str;
use bstr::io::BufReadExt;
use escape::{escape, escape_os};
/// An error that occurs when a pattern could not be converted to valid UTF-8.
///
/// The purpose of this error is to give a more targeted failure mode for
/// patterns written by end users that are not valid UTF-8.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct InvalidPatternError {
original: String,
valid_up_to: usize,
}
impl InvalidPatternError {
/// Returns the index in the given string up to which valid UTF-8 was
/// verified.
pub fn valid_up_to(&self) -> usize {
self.valid_up_to
}
}
impl error::Error for InvalidPatternError {
fn description(&self) -> &str { "invalid pattern" }
}
impl fmt::Display for InvalidPatternError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(
f,
"found invalid UTF-8 in pattern at byte offset {} \
(use hex escape sequences to match arbitrary bytes \
in a pattern, e.g., \\xFF): '{}'",
self.valid_up_to,
self.original,
)
}
}
impl From<InvalidPatternError> for io::Error {
fn from(paterr: InvalidPatternError) -> io::Error {
io::Error::new(io::ErrorKind::Other, paterr)
}
}
/// Convert an OS string into a regular expression pattern.
///
/// This conversion fails if the given pattern is not valid UTF-8, in which
/// case, a targeted error with more information about where the invalid UTF-8
/// occurs is given. The error also suggests the use of hex escape sequences,
/// which are supported by many regex engines.
pub fn pattern_from_os(pattern: &OsStr) -> Result<&str, InvalidPatternError> {
pattern.to_str().ok_or_else(|| {
let valid_up_to = pattern
.to_string_lossy()
.find('\u{FFFD}')
.expect("a Unicode replacement codepoint for invalid UTF-8");
InvalidPatternError {
original: escape_os(pattern),
valid_up_to: valid_up_to,
}
})
}
/// Convert arbitrary bytes into a regular expression pattern.
///
/// This conversion fails if the given pattern is not valid UTF-8, in which
/// case, a targeted error with more information about where the invalid UTF-8
/// occurs is given. The error also suggests the use of hex escape sequences,
/// which are supported by many regex engines.
pub fn pattern_from_bytes(
pattern: &[u8],
) -> Result<&str, InvalidPatternError> {
str::from_utf8(pattern).map_err(|err| {
InvalidPatternError {
original: escape(pattern),
valid_up_to: err.valid_up_to(),
}
})
}
/// Read patterns from a file path, one per line.
///
/// If there was a problem reading or if any of the patterns contain invalid
/// UTF-8, then an error is returned. If there was a problem with a specific
/// pattern, then the error message will include the line number and the file
/// path.
pub fn patterns_from_path<P: AsRef<Path>>(path: P) -> io::Result<Vec<String>> {
let path = path.as_ref();
let file = File::open(path).map_err(|err| {
io::Error::new(
io::ErrorKind::Other,
format!("{}: {}", path.display(), err),
)
})?;
patterns_from_reader(file).map_err(|err| {
io::Error::new(
io::ErrorKind::Other,
format!("{}:{}", path.display(), err),
)
})
}
/// Read patterns from stdin, one per line.
///
/// If there was a problem reading or if any of the patterns contain invalid
/// UTF-8, then an error is returned. If there was a problem with a specific
/// pattern, then the error message will include the line number and the fact
/// that it came from stdin.
pub fn patterns_from_stdin() -> io::Result<Vec<String>> {
let stdin = io::stdin();
let locked = stdin.lock();
patterns_from_reader(locked).map_err(|err| {
io::Error::new(
io::ErrorKind::Other,
format!("<stdin>:{}", err),
)
})
}
/// Read patterns from any reader, one per line.
///
/// If there was a problem reading or if any of the patterns contain invalid
/// UTF-8, then an error is returned. If there was a problem with a specific
/// pattern, then the error message will include the line number.
///
/// Note that this routine uses its own internal buffer, so the caller should
/// not provide their own buffered reader if possible.
///
/// # Example
///
/// This shows how to parse patterns, one per line.
///
/// ```
/// use grep_cli::patterns_from_reader;
///
/// # fn example() -> Result<(), Box<::std::error::Error>> {
/// let patterns = "\
/// foo
/// bar\\s+foo
/// [a-z]{3}
/// ";
///
/// assert_eq!(patterns_from_reader(patterns.as_bytes())?, vec![
/// r"foo",
/// r"bar\s+foo",
/// r"[a-z]{3}",
/// ]);
/// # Ok(()) }
/// ```
pub fn patterns_from_reader<R: io::Read>(rdr: R) -> io::Result<Vec<String>> {
let mut patterns = vec![];
let mut line_number = 0;
io::BufReader::new(rdr).for_byte_line(|line| {
line_number += 1;
match pattern_from_bytes(line) {
Ok(pattern) => {
patterns.push(pattern.to_string());
Ok(true)
}
Err(err) => {
Err(io::Error::new(
io::ErrorKind::Other,
format!("{}: {}", line_number, err),
))
}
}
})?;
Ok(patterns)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn bytes() {
let pat = b"abc\xFFxyz";
let err = pattern_from_bytes(pat).unwrap_err();
assert_eq!(3, err.valid_up_to());
}
#[test]
#[cfg(unix)]
fn os() {
use std::os::unix::ffi::OsStrExt;
use std::ffi::OsStr;
let pat = OsStr::from_bytes(b"abc\xFFxyz");
let err = pattern_from_os(pat).unwrap_err();
assert_eq!(3, err.valid_up_to());
}
}

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use std::error;
use std::fmt;
use std::io::{self, Read};
use std::iter;
use std::process;
use std::thread::{self, JoinHandle};
/// An error that can occur while running a command and reading its output.
///
/// This error can be seamlessly converted to an `io::Error` via a `From`
/// implementation.
#[derive(Debug)]
pub struct CommandError {
kind: CommandErrorKind,
}
#[derive(Debug)]
enum CommandErrorKind {
Io(io::Error),
Stderr(Vec<u8>),
}
impl CommandError {
/// Create an error from an I/O error.
pub(crate) fn io(ioerr: io::Error) -> CommandError {
CommandError { kind: CommandErrorKind::Io(ioerr) }
}
/// Create an error from the contents of stderr (which may be empty).
pub(crate) fn stderr(bytes: Vec<u8>) -> CommandError {
CommandError { kind: CommandErrorKind::Stderr(bytes) }
}
}
impl error::Error for CommandError {
fn description(&self) -> &str { "command error" }
}
impl fmt::Display for CommandError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.kind {
CommandErrorKind::Io(ref e) => e.fmt(f),
CommandErrorKind::Stderr(ref bytes) => {
let msg = String::from_utf8_lossy(bytes);
if msg.trim().is_empty() {
write!(f, "<stderr is empty>")
} else {
let div = iter::repeat('-').take(79).collect::<String>();
write!(f, "\n{div}\n{msg}\n{div}", div=div, msg=msg.trim())
}
}
}
}
}
impl From<io::Error> for CommandError {
fn from(ioerr: io::Error) -> CommandError {
CommandError { kind: CommandErrorKind::Io(ioerr) }
}
}
impl From<CommandError> for io::Error {
fn from(cmderr: CommandError) -> io::Error {
match cmderr.kind {
CommandErrorKind::Io(ioerr) => ioerr,
CommandErrorKind::Stderr(_) => {
io::Error::new(io::ErrorKind::Other, cmderr)
}
}
}
}
/// Configures and builds a streaming reader for process output.
#[derive(Clone, Debug, Default)]
pub struct CommandReaderBuilder {
async_stderr: bool,
}
impl CommandReaderBuilder {
/// Create a new builder with the default configuration.
pub fn new() -> CommandReaderBuilder {
CommandReaderBuilder::default()
}
/// Build a new streaming reader for the given command's output.
///
/// The caller should set everything that's required on the given command
/// before building a reader, such as its arguments, environment and
/// current working directory. Settings such as the stdout and stderr (but
/// not stdin) pipes will be overridden so that they can be controlled by
/// the reader.
///
/// If there was a problem spawning the given command, then its error is
/// returned.
pub fn build(
&self,
command: &mut process::Command,
) -> Result<CommandReader, CommandError> {
let mut child = command
.stdout(process::Stdio::piped())
.stderr(process::Stdio::piped())
.spawn()?;
let stdout = child.stdout.take().unwrap();
let stderr =
if self.async_stderr {
StderrReader::async(child.stderr.take().unwrap())
} else {
StderrReader::sync(child.stderr.take().unwrap())
};
Ok(CommandReader {
child: child,
stdout: stdout,
stderr: stderr,
done: false,
})
}
/// When enabled, the reader will asynchronously read the contents of the
/// command's stderr output. When disabled, stderr is only read after the
/// stdout stream has been exhausted (or if the process quits with an error
/// code).
///
/// Note that when enabled, this may require launching an additional
/// thread in order to read stderr. This is done so that the process being
/// executed is never blocked from writing to stdout or stderr. If this is
/// disabled, then it is possible for the process to fill up the stderr
/// buffer and deadlock.
///
/// This is enabled by default.
pub fn async_stderr(&mut self, yes: bool) -> &mut CommandReaderBuilder {
self.async_stderr = yes;
self
}
}
/// A streaming reader for a command's output.
///
/// The purpose of this reader is to provide an easy way to execute processes
/// whose stdout is read in a streaming way while also making the processes'
/// stderr available when the process fails with an exit code. This makes it
/// possible to execute processes while surfacing the underlying failure mode
/// in the case of an error.
///
/// Moreover, by default, this reader will asynchronously read the processes'
/// stderr. This prevents subtle deadlocking bugs for noisy processes that
/// write a lot to stderr. Currently, the entire contents of stderr is read
/// on to the heap.
///
/// # Example
///
/// This example shows how to invoke `gzip` to decompress the contents of a
/// file. If the `gzip` command reports a failing exit status, then its stderr
/// is returned as an error.
///
/// ```no_run
/// use std::io::Read;
/// use std::process::Command;
/// use grep_cli::CommandReader;
///
/// # fn example() -> Result<(), Box<::std::error::Error>> {
/// let mut cmd = Command::new("gzip");
/// cmd.arg("-d").arg("-c").arg("/usr/share/man/man1/ls.1.gz");
///
/// let mut rdr = CommandReader::new(&mut cmd)?;
/// let mut contents = vec![];
/// rdr.read_to_end(&mut contents)?;
/// # Ok(()) }
/// ```
#[derive(Debug)]
pub struct CommandReader {
child: process::Child,
stdout: process::ChildStdout,
stderr: StderrReader,
done: bool,
}
impl CommandReader {
/// Create a new streaming reader for the given command using the default
/// configuration.
///
/// The caller should set everything that's required on the given command
/// before building a reader, such as its arguments, environment and
/// current working directory. Settings such as the stdout and stderr (but
/// not stdin) pipes will be overridden so that they can be controlled by
/// the reader.
///
/// If there was a problem spawning the given command, then its error is
/// returned.
///
/// If the caller requires additional configuration for the reader
/// returned, then use
/// [`CommandReaderBuilder`](struct.CommandReaderBuilder.html).
pub fn new(
cmd: &mut process::Command,
) -> Result<CommandReader, CommandError> {
CommandReaderBuilder::new().build(cmd)
}
}
impl io::Read for CommandReader {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
if self.done {
return Ok(0);
}
let nread = self.stdout.read(buf)?;
if nread == 0 {
self.done = true;
// Reap the child now that we're done reading. If the command
// failed, report stderr as an error.
if !self.child.wait()?.success() {
return Err(io::Error::from(self.stderr.read_to_end()));
}
}
Ok(nread)
}
}
/// A reader that encapsulates the asynchronous or synchronous reading of
/// stderr.
#[derive(Debug)]
enum StderrReader {
Async(Option<JoinHandle<CommandError>>),
Sync(process::ChildStderr),
}
impl StderrReader {
/// Create a reader for stderr that reads contents asynchronously.
fn async(mut stderr: process::ChildStderr) -> StderrReader {
let handle = thread::spawn(move || {
stderr_to_command_error(&mut stderr)
});
StderrReader::Async(Some(handle))
}
/// Create a reader for stderr that reads contents synchronously.
fn sync(stderr: process::ChildStderr) -> StderrReader {
StderrReader::Sync(stderr)
}
/// Consumes all of stderr on to the heap and returns it as an error.
///
/// If there was a problem reading stderr itself, then this returns an I/O
/// command error.
fn read_to_end(&mut self) -> CommandError {
match *self {
StderrReader::Async(ref mut handle) => {
let handle = handle
.take()
.expect("read_to_end cannot be called more than once");
handle
.join()
.expect("stderr reading thread does not panic")
}
StderrReader::Sync(ref mut stderr) => {
stderr_to_command_error(stderr)
}
}
}
}
fn stderr_to_command_error(stderr: &mut process::ChildStderr) -> CommandError {
let mut bytes = vec![];
match stderr.read_to_end(&mut bytes) {
Ok(_) => CommandError::stderr(bytes),
Err(err) => CommandError::io(err),
}
}

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use std::io;
use termcolor;
use is_tty_stdout;
/// A writer that supports coloring with either line or block buffering.
pub struct StandardStream(StandardStreamKind);
/// Returns a possibly buffered writer to stdout for the given color choice.
///
/// The writer returned is either line buffered or block buffered. The decision
/// between these two is made automatically based on whether a tty is attached
/// to stdout or not. If a tty is attached, then line buffering is used.
/// Otherwise, block buffering is used. In general, block buffering is more
/// efficient, but may increase the time it takes for the end user to see the
/// first bits of output.
///
/// If you need more fine grained control over the buffering mode, then use one
/// of `stdout_buffered_line` or `stdout_buffered_block`.
///
/// The color choice given is passed along to the underlying writer. To
/// completely disable colors in all cases, use `ColorChoice::Never`.
pub fn stdout(color_choice: termcolor::ColorChoice) -> StandardStream {
if is_tty_stdout() {
stdout_buffered_line(color_choice)
} else {
stdout_buffered_block(color_choice)
}
}
/// Returns a line buffered writer to stdout for the given color choice.
///
/// This writer is useful when printing results directly to a tty such that
/// users see output as soon as it's written. The downside of this approach
/// is that it can be slower, especially when there is a lot of output.
///
/// You might consider using
/// [`stdout`](fn.stdout.html)
/// instead, which chooses the buffering strategy automatically based on
/// whether stdout is connected to a tty.
pub fn stdout_buffered_line(
color_choice: termcolor::ColorChoice,
) -> StandardStream {
let out = termcolor::StandardStream::stdout(color_choice);
StandardStream(StandardStreamKind::LineBuffered(out))
}
/// Returns a block buffered writer to stdout for the given color choice.
///
/// This writer is useful when printing results to a file since it amortizes
/// the cost of writing data. The downside of this approach is that it can
/// increase the latency of display output when writing to a tty.
///
/// You might consider using
/// [`stdout`](fn.stdout.html)
/// instead, which chooses the buffering strategy automatically based on
/// whether stdout is connected to a tty.
pub fn stdout_buffered_block(
color_choice: termcolor::ColorChoice,
) -> StandardStream {
let out = termcolor::BufferedStandardStream::stdout(color_choice);
StandardStream(StandardStreamKind::BlockBuffered(out))
}
enum StandardStreamKind {
LineBuffered(termcolor::StandardStream),
BlockBuffered(termcolor::BufferedStandardStream),
}
impl io::Write for StandardStream {
#[inline]
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref mut w) => w.write(buf),
BlockBuffered(ref mut w) => w.write(buf),
}
}
#[inline]
fn flush(&mut self) -> io::Result<()> {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref mut w) => w.flush(),
BlockBuffered(ref mut w) => w.flush(),
}
}
}
impl termcolor::WriteColor for StandardStream {
#[inline]
fn supports_color(&self) -> bool {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref w) => w.supports_color(),
BlockBuffered(ref w) => w.supports_color(),
}
}
#[inline]
fn set_color(&mut self, spec: &termcolor::ColorSpec) -> io::Result<()> {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref mut w) => w.set_color(spec),
BlockBuffered(ref mut w) => w.set_color(spec),
}
}
#[inline]
fn reset(&mut self) -> io::Result<()> {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref mut w) => w.reset(),
BlockBuffered(ref mut w) => w.reset(),
}
}
#[inline]
fn is_synchronous(&self) -> bool {
use self::StandardStreamKind::*;
match self.0 {
LineBuffered(ref w) => w.is_synchronous(),
BlockBuffered(ref w) => w.is_synchronous(),
}
}
}

6
grep-matcher/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "grep-matcher"
version = "0.0.1" #:version
version = "0.1.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
A trait for regular expressions, with a focus on line oriented search.
@@ -14,10 +14,10 @@ license = "Unlicense/MIT"
autotests = false
[dependencies]
memchr = "2"
memchr = "2.1"
[dev-dependencies]
regex = "1"
regex = "1.1"
[[test]]
name = "integration"

40
grep-matcher/README.md
View File

@@ -1,4 +1,36 @@
grep
----
This is a *library* that provides grep-style line-by-line regex searching (with
comparable performance to `grep` itself).
grep-matcher
------------
This crate provides a low level interface for describing regular expression
matchers. The `grep` crate uses this interface in order to make the regex
engine it uses pluggable.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-matcher.svg)](https://crates.io/crates/grep-matcher)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-matcher](https://docs.rs/grep-matcher)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-matcher = "0.1"
```
and this to your crate root:
```rust
extern crate grep_matcher;
```

2
grep-matcher/src/interpolate.rs
View File

@@ -134,7 +134,7 @@ fn find_cap_ref(replacement: &[u8]) -> Option<CaptureRef> {
/// Returns true if and only if the given byte is allowed in a capture name.
fn is_valid_cap_letter(b: &u8) -> bool {
match *b {
b'0' ... b'9' | b'a' ... b'z' | b'A' ... b'Z' | b'_' => true,
b'0' ..= b'9' | b'a' ..= b'z' | b'A' ..= b'Z' | b'_' => true,
_ => false,
}
}

72
grep-matcher/src/lib.rs
View File

@@ -1,5 +1,39 @@
/*!
An interface for regular expressions, with a focus on line oriented search.
This crate provides an interface for regular expressions, with a focus on line
oriented search. The purpose of this crate is to provide a low level matching
interface that permits any kind of substring or regex implementation to power
the search routines provided by the
[`grep-searcher`](https://docs.rs/grep-searcher)
crate.
The primary thing provided by this crate is the
[`Matcher`](trait.Matcher.html)
trait. The trait defines an abstract interface for text search. It is robust
enough to support everything from basic substring search all the way to
arbitrarily complex regular expression implementations without sacrificing
performance.
A key design decision made in this crate is the use of *internal iteration*,
or otherwise known as the "push" model of searching. In this paradigm,
implementations of the `Matcher` trait will drive search and execute callbacks
provided by the caller when a match is found. This is in contrast to the
usual style of *external iteration* (the "pull" model) found throughout the
Rust ecosystem. There are two primary reasons why internal iteration was
chosen:
* Some search implementations may themselves require internal iteration.
Converting an internal iterator to an external iterator can be non-trivial
and sometimes even practically impossible.
* Rust's type system isn't quite expressive enough to write a generic interface
using external iteration without giving something else up (namely, ease of
use and/or performance).
In other words, internal iteration was chosen because it is the lowest common
denominator and because it is probably the least bad way of expressing the
interface in today's Rust. As a result, this trait isn't specifically intended
for everyday use, although, you might find it to be a happy price to pay if you
want to write code that is generic over multiple different regex
implementations.
*/
#![deny(missing_docs)]
@@ -186,6 +220,7 @@ enum LineTerminatorImp {
impl LineTerminator {
/// Return a new single-byte line terminator. Any byte is valid.
#[inline]
pub fn byte(byte: u8) -> LineTerminator {
LineTerminator(LineTerminatorImp::Byte([byte]))
}
@@ -194,11 +229,13 @@ impl LineTerminator {
///
/// When this option is used, consumers may generally treat a lone `\n` as
/// a line terminator in addition to `\r\n`.
#[inline]
pub fn crlf() -> LineTerminator {
LineTerminator(LineTerminatorImp::CRLF)
}
/// Returns true if and only if this line terminator is CRLF.
#[inline]
pub fn is_crlf(&self) -> bool {
self.0 == LineTerminatorImp::CRLF
}
@@ -208,6 +245,7 @@ impl LineTerminator {
/// If the line terminator is CRLF, then this returns `\n`. This is
/// useful for routines that, for example, find line boundaries by treating
/// `\n` as a line terminator even when it isn't preceded by `\r`.
#[inline]
pub fn as_byte(&self) -> u8 {
match self.0 {
LineTerminatorImp::Byte(array) => array[0],
@@ -221,15 +259,27 @@ impl LineTerminator {
/// `CRLF`, in which case, it returns `\r\n`.
///
/// The slice returned is guaranteed to have length at least `1`.
#[inline]
pub fn as_bytes(&self) -> &[u8] {
match self.0 {
LineTerminatorImp::Byte(ref array) => array,
LineTerminatorImp::CRLF => &[b'\r', b'\n'],
}
}
/// Returns true if and only if the given slice ends with this line
/// terminator.
///
/// If this line terminator is `CRLF`, then this only checks whether the
/// last byte is `\n`.
#[inline]
pub fn is_suffix(&self, slice: &[u8]) -> bool {
slice.last().map_or(false, |&b| b == self.as_byte())
}
}
impl Default for LineTerminator {
#[inline]
fn default() -> LineTerminator {
LineTerminator::byte(b'\n')
}
@@ -324,12 +374,12 @@ impl ByteSet {
///
/// Principally, this trait provides a way to access capturing groups
/// in a uniform way that does not require any specific representation.
/// Namely, differ matcher implementations may require different in-memory
/// Namely, different matcher implementations may require different in-memory
/// representations of capturing groups. This trait permits matchers to
/// maintain their specific in-memory representation.
///
/// Note that this trait explicitly does not provide a way to construct a new
/// captures value. Instead, it is the responsibility of a `Matcher` to build
/// capture value. Instead, it is the responsibility of a `Matcher` to build
/// one, which might require knowledge of the matcher's internal implementation
/// details.
pub trait Captures {
@@ -426,7 +476,7 @@ impl Captures for NoCaptures {
/// This error type implements the `std::error::Error` and `fmt::Display`
/// traits for use in matcher implementations that can never produce errors.
///
/// The `fmt::Display` impl for this type panics.
/// The `fmt::Debug` and `fmt::Display` impls for this type panics.
#[derive(Debug, Eq, PartialEq)]
pub struct NoError(());
@@ -463,6 +513,20 @@ pub enum LineMatchKind {
}
/// A matcher defines an interface for regular expression implementations.
///
/// While this trait is large, there are only two required methods that
/// implementors must provide: `find_at` and `new_captures`. If captures
/// aren't supported by your implementation, then `new_captures` can be
/// implemented with
/// [`NoCaptures`](struct.NoCaptures.html). If your implementation does support
/// capture groups, then you should also implement the other capture related
/// methods, as dictated by the documentation. Crucially, this includes
/// `captures_at`.
///
/// The rest of the methods on this trait provide default implementations on
/// top of `find_at` and `new_captures`. It is not uncommon for implementations
/// to be able to provide faster variants of some methods; in those cases,
/// simply override the default implementation.
pub trait Matcher {
/// The concrete type of capturing groups used for this matcher.
///

17
grep-pcre2/Cargo.toml Normal file
View File

@@ -0,0 +1,17 @@
[package]
name = "grep-pcre2"
version = "0.1.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Use PCRE2 with the 'grep' crate.
"""
documentation = "https://docs.rs/grep-pcre2"
homepage = "https://github.com/BurntSushi/ripgrep"
repository = "https://github.com/BurntSushi/ripgrep"
readme = "README.md"
keywords = ["regex", "grep", "pcre", "backreference", "look"]
license = "Unlicense/MIT"
[dependencies]
grep-matcher = { version = "0.1.2", path = "../grep-matcher" }
pcre2 = "0.2.0"

21
grep-pcre2/LICENSE-MIT Normal file
View File

@@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2015 Andrew Gallant
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

39
grep-pcre2/README.md Normal file
View File

@@ -0,0 +1,39 @@
grep-pcre2
----------
The `grep-pcre2` crate provides an implementation of the `Matcher` trait from
the `grep-matcher` crate. This implementation permits PCRE2 to be used in the
`grep` crate for fast line oriented searching.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-pcre2.svg)](https://crates.io/crates/grep-pcre2)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-pcre2](https://docs.rs/grep-pcre2)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
If you're looking to just use PCRE2 from Rust, then you probably want the
[`pcre2`](https://docs.rs/pcre2)
crate, which provide high level safe bindings to PCRE2.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-pcre2 = "0.1"
```
and this to your crate root:
```rust
extern crate grep_pcre2;
```

24
grep-pcre2/UNLICENSE Normal file
View File

@@ -0,0 +1,24 @@
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>

59
grep-pcre2/src/error.rs Normal file
View File

@@ -0,0 +1,59 @@
use std::error;
use std::fmt;
/// An error that can occur in this crate.
///
/// Generally, this error corresponds to problems building a regular
/// expression, whether it's in parsing, compilation or a problem with
/// guaranteeing a configured optimization.
#[derive(Clone, Debug)]
pub struct Error {
kind: ErrorKind,
}
impl Error {
pub(crate) fn regex<E: error::Error>(err: E) -> Error {
Error { kind: ErrorKind::Regex(err.to_string()) }
}
/// Return the kind of this error.
pub fn kind(&self) -> &ErrorKind {
&self.kind
}
}
/// The kind of an error that can occur.
#[derive(Clone, Debug)]
pub enum ErrorKind {
/// An error that occurred as a result of parsing a regular expression.
/// This can be a syntax error or an error that results from attempting to
/// compile a regular expression that is too big.
///
/// The string here is the underlying error converted to a string.
Regex(String),
/// Hints that destructuring should not be exhaustive.
///
/// This enum may grow additional variants, so this makes sure clients
/// don't count on exhaustive matching. (Otherwise, adding a new variant
/// could break existing code.)
#[doc(hidden)]
__Nonexhaustive,
}
impl error::Error for Error {
fn description(&self) -> &str {
match self.kind {
ErrorKind::Regex(_) => "regex error",
ErrorKind::__Nonexhaustive => unreachable!(),
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.kind {
ErrorKind::Regex(ref s) => write!(f, "{}", s),
ErrorKind::__Nonexhaustive => unreachable!(),
}
}
}

16
grep-pcre2/src/lib.rs Normal file
View File

@@ -0,0 +1,16 @@
/*!
An implementation of `grep-matcher`'s `Matcher` trait for
[PCRE2](https://www.pcre.org/).
*/
#![deny(missing_docs)]
extern crate grep_matcher;
extern crate pcre2;
pub use error::{Error, ErrorKind};
pub use matcher::{RegexCaptures, RegexMatcher, RegexMatcherBuilder};
pub use pcre2::{is_jit_available, version};
mod error;
mod matcher;

464
grep-pcre2/src/matcher.rs Normal file
View File

@@ -0,0 +1,464 @@
use std::collections::HashMap;
use grep_matcher::{Captures, Match, Matcher};
use pcre2::bytes::{CaptureLocations, Regex, RegexBuilder};
use error::Error;
/// A builder for configuring the compilation of a PCRE2 regex.
#[derive(Clone, Debug)]
pub struct RegexMatcherBuilder {
builder: RegexBuilder,
case_smart: bool,
word: bool,
}
impl RegexMatcherBuilder {
/// Create a new matcher builder with a default configuration.
pub fn new() -> RegexMatcherBuilder {
RegexMatcherBuilder {
builder: RegexBuilder::new(),
case_smart: false,
word: false,
}
}
/// Compile the given pattern into a PCRE matcher using the current
/// configuration.
///
/// If there was a problem compiling the pattern, then an error is
/// returned.
pub fn build(&self, pattern: &str) -> Result<RegexMatcher, Error> {
let mut builder = self.builder.clone();
if self.case_smart && !has_uppercase_literal(pattern) {
builder.caseless(true);
}
let res =
if self.word {
let pattern = format!(r"(?<!\w)(?:{})(?!\w)", pattern);
builder.build(&pattern)
} else {
builder.build(pattern)
};
res.map_err(Error::regex).map(|regex| {
let mut names = HashMap::new();
for (i, name) in regex.capture_names().iter().enumerate() {
if let Some(ref name) = *name {
names.insert(name.to_string(), i);
}
}
RegexMatcher { regex, names }
})
}
/// Enables case insensitive matching.
///
/// If the `utf` option is also set, then Unicode case folding is used
/// to determine case insensitivity. When the `utf` option is not set,
/// then only standard ASCII case insensitivity is considered.
///
/// This option corresponds to the `i` flag.
pub fn caseless(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.caseless(yes);
self
}
/// Whether to enable "smart case" or not.
///
/// When smart case is enabled, the builder will automatically enable
/// case insensitive matching based on how the pattern is written. Namely,
/// case insensitive mode is enabled when both of the following things
/// are believed to be true:
///
/// 1. The pattern contains at least one literal character. For example,
/// `a\w` contains a literal (`a`) but `\w` does not.
/// 2. Of the literals in the pattern, none of them are considered to be
/// uppercase according to Unicode. For example, `foo\pL` has no
/// uppercase literals but `Foo\pL` does.
///
/// Note that the implementation of this is not perfect. Namely, `\p{Ll}`
/// will prevent case insensitive matching even though it is part of a meta
/// sequence. This bug will probably never be fixed.
pub fn case_smart(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.case_smart = yes;
self
}
/// Enables "dot all" matching.
///
/// When enabled, the `.` metacharacter in the pattern matches any
/// character, include `\n`. When disabled (the default), `.` will match
/// any character except for `\n`.
///
/// This option corresponds to the `s` flag.
pub fn dotall(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.dotall(yes);
self
}
/// Enable "extended" mode in the pattern, where whitespace is ignored.
///
/// This option corresponds to the `x` flag.
pub fn extended(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.extended(yes);
self
}
/// Enable multiline matching mode.
///
/// When enabled, the `^` and `$` anchors will match both at the beginning
/// and end of a subject string, in addition to matching at the start of
/// a line and the end of a line. When disabled, the `^` and `$` anchors
/// will only match at the beginning and end of a subject string.
///
/// This option corresponds to the `m` flag.
pub fn multi_line(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.multi_line(yes);
self
}
/// Enable matching of CRLF as a line terminator.
///
/// When enabled, anchors such as `^` and `$` will match any of the
/// following as a line terminator: `\r`, `\n` or `\r\n`.
///
/// This is disabled by default, in which case, only `\n` is recognized as
/// a line terminator.
pub fn crlf(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.crlf(yes);
self
}
/// Require that all matches occur on word boundaries.
///
/// Enabling this option is subtly different than putting `\b` assertions
/// on both sides of your pattern. In particular, a `\b` assertion requires
/// that one side of it match a word character while the other match a
/// non-word character. This option, in contrast, merely requires that
/// one side match a non-word character.
///
/// For example, `\b-2\b` will not match `foo -2 bar` since `-` is not a
/// word character. However, `-2` with this `word` option enabled will
/// match the `-2` in `foo -2 bar`.
pub fn word(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.word = yes;
self
}
/// Enable Unicode matching mode.
///
/// When enabled, the following patterns become Unicode aware: `\b`, `\B`,
/// `\d`, `\D`, `\s`, `\S`, `\w`, `\W`.
///
/// When set, this implies UTF matching mode. It is not possible to enable
/// Unicode matching mode without enabling UTF matching mode.
///
/// This is disabled by default.
pub fn ucp(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.ucp(yes);
self
}
/// Enable UTF matching mode.
///
/// When enabled, characters are treated as sequences of code units that
/// make up a single codepoint instead of as single bytes. For example,
/// this will cause `.` to match any single UTF-8 encoded codepoint, where
/// as when this is disabled, `.` will any single byte (except for `\n` in
/// both cases, unless "dot all" mode is enabled).
///
/// Note that when UTF matching mode is enabled, every search performed
/// will do a UTF-8 validation check, which can impact performance. The
/// UTF-8 check can be disabled via the `disable_utf_check` option, but it
/// is undefined behavior to enable UTF matching mode and search invalid
/// UTF-8.
///
/// This is disabled by default.
pub fn utf(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.utf(yes);
self
}
/// When UTF matching mode is enabled, this will disable the UTF checking
/// that PCRE2 will normally perform automatically. If UTF matching mode
/// is not enabled, then this has no effect.
///
/// UTF checking is enabled by default when UTF matching mode is enabled.
/// If UTF matching mode is enabled and UTF checking is enabled, then PCRE2
/// will return an error if you attempt to search a subject string that is
/// not valid UTF-8.
///
/// # Safety
///
/// It is undefined behavior to disable the UTF check in UTF matching mode
/// and search a subject string that is not valid UTF-8. When the UTF check
/// is disabled, callers must guarantee that the subject string is valid
/// UTF-8.
pub unsafe fn disable_utf_check(&mut self) -> &mut RegexMatcherBuilder {
self.builder.disable_utf_check();
self
}
/// Enable PCRE2's JIT and return an error if it's not available.
///
/// This generally speeds up matching quite a bit. The downside is that it
/// can increase the time it takes to compile a pattern.
///
/// If the JIT isn't available or if JIT compilation returns an error, then
/// regex compilation will fail with the corresponding error.
///
/// This is disabled by default, and always overrides `jit_if_available`.
pub fn jit(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.jit(yes);
self
}
/// Enable PCRE2's JIT if it's available.
///
/// This generally speeds up matching quite a bit. The downside is that it
/// can increase the time it takes to compile a pattern.
///
/// If the JIT isn't available or if JIT compilation returns an error,
/// then a debug message with the error will be emitted and the regex will
/// otherwise silently fall back to non-JIT matching.
///
/// This is disabled by default, and always overrides `jit`.
pub fn jit_if_available(&mut self, yes: bool) -> &mut RegexMatcherBuilder {
self.builder.jit_if_available(yes);
self
}
/// Set the maximum size of PCRE2's JIT stack, in bytes. If the JIT is
/// not enabled, then this has no effect.
///
/// When `None` is given, no custom JIT stack will be created, and instead,
/// the default JIT stack is used. When the default is used, its maximum
/// size is 32 KB.
///
/// When this is set, then a new JIT stack will be created with the given
/// maximum size as its limit.
///
/// Increasing the stack size can be useful for larger regular expressions.
///
/// By default, this is set to `None`.
pub fn max_jit_stack_size(
&mut self,
bytes: Option<usize>,
) -> &mut RegexMatcherBuilder {
self.builder.max_jit_stack_size(bytes);
self
}
}
/// An implementation of the `Matcher` trait using PCRE2.
#[derive(Clone, Debug)]
pub struct RegexMatcher {
regex: Regex,
names: HashMap<String, usize>,
}
impl RegexMatcher {
/// Create a new matcher from the given pattern using the default
/// configuration.
pub fn new(pattern: &str) -> Result<RegexMatcher, Error> {
RegexMatcherBuilder::new().build(pattern)
}
}
impl Matcher for RegexMatcher {
type Captures = RegexCaptures;
type Error = Error;
fn find_at(
&self,
haystack: &[u8],
at: usize,
) -> Result<Option<Match>, Error> {
Ok(self.regex
.find_at(haystack, at)
.map_err(Error::regex)?
.map(|m| Match::new(m.start(), m.end())))
}
fn new_captures(&self) -> Result<RegexCaptures, Error> {
Ok(RegexCaptures::new(self.regex.capture_locations()))
}
fn capture_count(&self) -> usize {
self.regex.captures_len()
}
fn capture_index(&self, name: &str) -> Option<usize> {
self.names.get(name).map(|i| *i)
}
fn try_find_iter<F, E>(
&self,
haystack: &[u8],
mut matched: F,
) -> Result<Result<(), E>, Error>
where F: FnMut(Match) -> Result<bool, E>
{
for result in self.regex.find_iter(haystack) {
let m = result.map_err(Error::regex)?;
match matched(Match::new(m.start(), m.end())) {
Ok(true) => continue,
Ok(false) => return Ok(Ok(())),
Err(err) => return Ok(Err(err)),
}
}
Ok(Ok(()))
}
fn captures_at(
&self,
haystack: &[u8],
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, Error> {
Ok(self.regex
.captures_read_at(&mut caps.locs, haystack, at)
.map_err(Error::regex)?
.is_some())
}
}
/// Represents the match offsets of each capturing group in a match.
///
/// The first, or `0`th capture group, always corresponds to the entire match
/// and is guaranteed to be present when a match occurs. The next capture
/// group, at index `1`, corresponds to the first capturing group in the regex,
/// ordered by the position at which the left opening parenthesis occurs.
///
/// Note that not all capturing groups are guaranteed to be present in a match.
/// For example, in the regex, `(?P<foo>\w)|(?P<bar>\W)`, only one of `foo`
/// or `bar` will ever be set in any given match.
///
/// In order to access a capture group by name, you'll need to first find the
/// index of the group using the corresponding matcher's `capture_index`
/// method, and then use that index with `RegexCaptures::get`.
#[derive(Clone, Debug)]
pub struct RegexCaptures {
/// Where the locations are stored.
locs: CaptureLocations,
}
impl Captures for RegexCaptures {
fn len(&self) -> usize {
self.locs.len()
}
fn get(&self, i: usize) -> Option<Match> {
self.locs.get(i).map(|(s, e)| Match::new(s, e))
}
}
impl RegexCaptures {
pub(crate) fn new(locs: CaptureLocations) -> RegexCaptures {
RegexCaptures { locs }
}
}
/// Determine whether the pattern contains an uppercase character which should
/// negate the effect of the smart-case option.
///
/// Ideally we would be able to check the AST in order to correctly handle
/// things like '\p{Ll}' and '\p{Lu}' (which should be treated as explicitly
/// cased), but PCRE doesn't expose enough details for that kind of analysis.
/// For now, our 'good enough' solution is to simply perform a semi-naïve
/// scan of the input pattern and ignore all characters following a '\'. The
/// This at least lets us support the most common cases, like 'foo\w' and
/// 'foo\S', in an intuitive manner.
fn has_uppercase_literal(pattern: &str) -> bool {
let mut chars = pattern.chars();
while let Some(c) = chars.next() {
if c == '\\' {
chars.next();
} else if c.is_uppercase() {
return true;
}
}
false
}
#[cfg(test)]
mod tests {
use grep_matcher::{LineMatchKind, Matcher};
use super::*;
// Test that enabling word matches does the right thing and demonstrate
// the difference between it and surrounding the regex in `\b`.
#[test]
fn word() {
let matcher = RegexMatcherBuilder::new()
.word(true)
.build(r"-2")
.unwrap();
assert!(matcher.is_match(b"abc -2 foo").unwrap());
let matcher = RegexMatcherBuilder::new()
.word(false)
.build(r"\b-2\b")
.unwrap();
assert!(!matcher.is_match(b"abc -2 foo").unwrap());
}
// Test that enabling CRLF permits `$` to match at the end of a line.
#[test]
fn line_terminator_crlf() {
// Test normal use of `$` with a `\n` line terminator.
let matcher = RegexMatcherBuilder::new()
.multi_line(true)
.build(r"abc$")
.unwrap();
assert!(matcher.is_match(b"abc\n").unwrap());
// Test that `$` doesn't match at `\r\n` boundary normally.
let matcher = RegexMatcherBuilder::new()
.multi_line(true)
.build(r"abc$")
.unwrap();
assert!(!matcher.is_match(b"abc\r\n").unwrap());
// Now check the CRLF handling.
let matcher = RegexMatcherBuilder::new()
.multi_line(true)
.crlf(true)
.build(r"abc$")
.unwrap();
assert!(matcher.is_match(b"abc\r\n").unwrap());
}
// Test that smart case works.
#[test]
fn case_smart() {
let matcher = RegexMatcherBuilder::new()
.case_smart(true)
.build(r"abc")
.unwrap();
assert!(matcher.is_match(b"ABC").unwrap());
let matcher = RegexMatcherBuilder::new()
.case_smart(true)
.build(r"aBc")
.unwrap();
assert!(!matcher.is_match(b"ABC").unwrap());
}
// Test that finding candidate lines works as expected.
#[test]
fn candidate_lines() {
fn is_confirmed(m: LineMatchKind) -> bool {
match m {
LineMatchKind::Confirmed(_) => true,
_ => false,
}
}
let matcher = RegexMatcherBuilder::new()
.build(r"\wfoo\s")
.unwrap();
let m = matcher.find_candidate_line(b"afoo ").unwrap().unwrap();
assert!(is_confirmed(m));
}
}

20
grep-printer/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "grep-printer"
version = "0.0.1" #:version
version = "0.1.3" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
An implementation of the grep crate's Sink trait that provides standard
@@ -18,14 +18,14 @@ default = ["serde1"]
serde1 = ["base64", "serde", "serde_derive", "serde_json"]
[dependencies]
base64 = { version = "0.9", optional = true }
grep-matcher = { version = "0.0.1", path = "../grep-matcher" }
grep-searcher = { version = "0.0.1", path = "../grep-searcher" }
log = "0.4"
termcolor = "1"
serde = { version = "1", optional = true }
serde_derive = { version = "1", optional = true }
serde_json = { version = "1", optional = true }
base64 = { version = "0.10.0", optional = true }
bstr = "0.2.0"
grep-matcher = { version = "0.1.2", path = "../grep-matcher" }
grep-searcher = { version = "0.1.4", path = "../grep-searcher" }
termcolor = "1.0.4"
serde = { version = "1.0.77", optional = true }
serde_derive = { version = "1.0.77", optional = true }
serde_json = { version = "1.0.27", optional = true }
[dev-dependencies]
grep-regex = { version = "0.0.1", path = "../grep-regex" }
grep-regex = { version = "0.1.3", path = "../grep-regex" }

39
grep-printer/README.md
View File

@@ -1,4 +1,35 @@
grep
----
This is a *library* that provides grep-style line-by-line regex searching (with
comparable performance to `grep` itself).
grep-printer
------------
Print results from line oriented searching in a human readable, aggregate or
JSON Lines format.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-printer.svg)](https://crates.io/crates/grep-printer)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-printer](https://docs.rs/grep-printer)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-printer = "0.1"
```
and this to your crate root:
```rust
extern crate grep_printer;
```

28
grep-printer/src/color.rs
View File

@@ -4,6 +4,25 @@ use std::str::FromStr;
use termcolor::{Color, ColorSpec, ParseColorError};
/// Returns a default set of color specifications.
///
/// This may change over time, but the color choices are meant to be fairly
/// conservative that work across terminal themes.
///
/// Additional color specifications can be added to the list returned. More
/// recently added specifications override previously added specifications.
pub fn default_color_specs() -> Vec<UserColorSpec> {
vec![
#[cfg(unix)]
"path:fg:magenta".parse().unwrap(),
#[cfg(windows)]
"path:fg:cyan".parse().unwrap(),
"line:fg:green".parse().unwrap(),
"match:fg:red".parse().unwrap(),
"match:style:bold".parse().unwrap(),
]
}
/// An error that can occur when parsing color specifications.
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ColorError {
@@ -227,6 +246,15 @@ impl ColorSpecs {
merged
}
/// Create a default set of specifications that have color.
///
/// This is distinct from `ColorSpecs`'s `Default` implementation in that
/// this provides a set of default color choices, where as the `Default`
/// implementation provides no color choices.
pub fn default_with_color() -> ColorSpecs {
ColorSpecs::new(&default_color_specs())
}
/// Return the color specification for coloring file paths.
pub fn path(&self) -> &ColorSpec {
&self.path

55
grep-printer/src/json.rs
View File

@@ -91,7 +91,7 @@ impl JSONBuilder {
/// When enabled, the `begin` and `end` messages are always emitted, even
/// when no match is found.
///
/// When disabled, the `begin` and `end` messages are only shown is there
/// When disabled, the `begin` and `end` messages are only shown if there
/// is at least one `match` or `context` message.
///
/// This is disabled by default.
@@ -108,7 +108,7 @@ impl JSONBuilder {
///
/// # Format
///
/// This section describe the JSON format used by this printer.
/// This section describes the JSON format used by this printer.
///
/// To skip the rigamarole, take a look at the
/// [example](#example)
@@ -619,6 +619,13 @@ impl<'p, 's, M: Matcher, W: io::Write> JSONSink<'p, 's, M, W> {
matches.push(m);
true
}).map_err(io::Error::error_message)?;
// Don't report empty matches appearing at the end of the bytes.
if !matches.is_empty()
&& matches.last().unwrap().is_empty()
&& matches.last().unwrap().start() >= bytes.len()
{
matches.pop().unwrap();
}
Ok(())
}
@@ -810,7 +817,8 @@ impl<'a> SubMatches<'a> {
#[cfg(test)]
mod tests {
use grep_regex::RegexMatcher;
use grep_regex::{RegexMatcher, RegexMatcherBuilder};
use grep_matcher::LineTerminator;
use grep_searcher::SearcherBuilder;
use super::{JSON, JSONBuilder};
@@ -911,4 +919,45 @@ and exhibited clearly, with a label attached.\
assert_eq!(got.lines().count(), 2);
assert!(got.contains("begin") && got.contains("end"));
}
#[test]
fn missing_crlf() {
let haystack = "test\r\n".as_bytes();
let matcher = RegexMatcherBuilder::new()
.build("test")
.unwrap();
let mut printer = JSONBuilder::new()
.build(vec![]);
SearcherBuilder::new()
.build()
.search_reader(&matcher, haystack, printer.sink(&matcher))
.unwrap();
let got = printer_contents(&mut printer);
assert_eq!(got.lines().count(), 3);
assert!(
got.lines().nth(1).unwrap().contains(r"test\r\n"),
r"missing 'test\r\n' in '{}'",
got.lines().nth(1).unwrap(),
);
let matcher = RegexMatcherBuilder::new()
.crlf(true)
.build("test")
.unwrap();
let mut printer = JSONBuilder::new()
.build(vec![]);
SearcherBuilder::new()
.line_terminator(LineTerminator::crlf())
.build()
.search_reader(&matcher, haystack, printer.sink(&matcher))
.unwrap();
let got = printer_contents(&mut printer);
assert_eq!(got.lines().count(), 3);
assert!(
got.lines().nth(1).unwrap().contains(r"test\r\n"),
r"missing 'test\r\n' in '{}'",
got.lines().nth(1).unwrap(),
);
}
}

66
grep-printer/src/jsont.rs
View File

@@ -114,39 +114,6 @@ impl<'a> Data<'a> {
// so we do the easy thing for now.
Data::Text { text: path.to_string_lossy() }
}
// Unused deserialization routines.
/*
fn into_bytes(self) -> Vec<u8> {
match self {
Data::Text { text } => text.into_bytes(),
Data::Bytes { bytes } => bytes,
}
}
#[cfg(unix)]
fn into_path_buf(&self) -> PathBuf {
use std::os::unix::ffi::OsStrExt;
match self {
Data::Text { text } => PathBuf::from(text),
Data::Bytes { bytes } => {
PathBuf::from(OsStr::from_bytes(bytes))
}
}
}
#[cfg(not(unix))]
fn into_path_buf(&self) -> PathBuf {
match self {
Data::Text { text } => PathBuf::from(text),
Data::Bytes { bytes } => {
PathBuf::from(String::from_utf8_lossy(&bytes).into_owned())
}
}
}
*/
}
fn to_base64<T, S>(
@@ -178,36 +145,3 @@ where P: AsRef<Path>,
{
path.as_ref().map(|p| Data::from_path(p.as_ref())).serialize(ser)
}
// The following are some deserialization helpers, in case we decide to support
// deserialization of the above types.
/*
fn from_base64<'de, D>(
de: D,
) -> Result<Vec<u8>, D::Error>
where D: Deserializer<'de>
{
let encoded = String::deserialize(de)?;
let decoded = base64::decode(encoded.as_bytes())
.map_err(D::Error::custom)?;
Ok(decoded)
}
fn deser_bytes<'de, D>(
de: D,
) -> Result<Vec<u8>, D::Error>
where D: Deserializer<'de>
{
Data::deserialize(de).map(|datum| datum.into_bytes())
}
fn deser_path<'de, D>(
de: D,
) -> Result<Option<PathBuf>, D::Error>
where D: Deserializer<'de>
{
Option::<Data>::deserialize(de)
.map(|opt| opt.map(|datum| datum.into_path_buf()))
}
*/

11
grep-printer/src/lib.rs
View File

@@ -1,7 +1,7 @@
/*!
This crate provides a featureful and fast printer for showing search results
in a human readable way, and another printer for showing results in a machine
readable way.
This crate provides featureful and fast printers that interoperate with the
[`grep-searcher`](https://docs.rs/grep-searcher)
crate.
# Brief overview
@@ -70,12 +70,11 @@ fn example() -> Result<(), Box<Error>> {
#[cfg(feature = "serde1")]
extern crate base64;
extern crate bstr;
extern crate grep_matcher;
#[cfg(test)]
extern crate grep_regex;
extern crate grep_searcher;
#[macro_use]
extern crate log;
#[cfg(feature = "serde1")]
extern crate serde;
#[cfg(feature = "serde1")]
@@ -85,7 +84,7 @@ extern crate serde_derive;
extern crate serde_json;
extern crate termcolor;
pub use color::{ColorError, ColorSpecs, UserColorSpec};
pub use color::{ColorError, ColorSpecs, UserColorSpec, default_color_specs};
#[cfg(feature = "serde1")]
pub use json::{JSON, JSONBuilder, JSONSink};
pub use standard::{Standard, StandardBuilder, StandardSink};

1
grep-printer/src/macros.rs
View File

@@ -1,3 +1,4 @@
/// Like assert_eq, but nicer output for long strings.
#[cfg(test)]
#[macro_export]
macro_rules! assert_eq_printed {

748
grep-printer/src/standard.rs
View File

File diff suppressed because it is too large Load Diff

37
grep-printer/src/summary.rs
View File

@@ -190,6 +190,8 @@ impl SummaryBuilder {
/// A [`UserColorSpec`](struct.UserColorSpec.html) can be constructed from
/// a string in accordance with the color specification format. See the
/// `UserColorSpec` type documentation for more details on the format.
/// A [`ColorSpecs`](struct.ColorSpecs.html) can then be generated from
/// zero or more `UserColorSpec`s.
///
/// Regardless of the color specifications provided here, whether color
/// is actually used or not is determined by the implementation of
@@ -401,7 +403,7 @@ impl<W: WriteColor> Summary<W> {
where M: Matcher,
P: ?Sized + AsRef<Path>,
{
if !self.config.path {
if !self.config.path && !self.config.kind.requires_path() {
return self.sink(matcher);
}
let stats =
@@ -475,7 +477,10 @@ impl<'p, 's, M: Matcher, W: WriteColor> SummarySink<'p, 's, M, W> {
/// This is unaffected by the result of searches before the previous
/// search.
pub fn has_match(&self) -> bool {
self.match_count > 0
match self.summary.config.kind {
SummaryKind::PathWithoutMatch => self.match_count == 0,
_ => self.match_count > 0,
}
}
/// If binary data was found in the previous search, this returns the
@@ -631,6 +636,34 @@ impl<'p, 's, M: Matcher, W: WriteColor> Sink for SummarySink<'p, 's, M, W> {
stats.add_bytes_searched(finish.byte_count());
stats.add_bytes_printed(self.summary.wtr.borrow().count());
}
// If our binary detection method says to quit after seeing binary
// data, then we shouldn't print any results at all, even if we've
// found a match before detecting binary data. The intent here is to
// keep BinaryDetection::quit as a form of filter. Otherwise, we can
// present a matching file with a smaller number of matches than
// there might be, which can be quite misleading.
//
// If our binary detection method is to convert binary data, then we
// don't quit and therefore search the entire contents of the file.
//
// There is an unfortunate inconsistency here. Namely, when using
// Quiet or PathWithMatch, then the printer can quit after the first
// match seen, which could be long before seeing binary data. This
// means that using PathWithMatch can print a path where as using
// Count might not print it at all because of binary data.
//
// It's not possible to fix this without also potentially significantly
// impacting the performance of Quiet or PathWithMatch, so we accept
// the bug.
if self.binary_byte_offset.is_some()
&& searcher.binary_detection().quit_byte().is_some()
{
// Squash the match count. The statistics reported will still
// contain the match count, but the "official" match count should
// be zero.
self.match_count = 0;
return Ok(());
}
let show_count =
!self.summary.config.exclude_zero

62
grep-printer/src/util.rs
View File

@@ -4,7 +4,8 @@ use std::io;
use std::path::Path;
use std::time;
use grep_matcher::{Captures, Match, Matcher};
use bstr::{ByteSlice, ByteVec};
use grep_matcher::{Captures, LineTerminator, Match, Matcher};
use grep_searcher::{
LineIter,
SinkError, SinkContext, SinkContextKind, SinkMatch,
@@ -157,6 +158,7 @@ pub struct Sunk<'a> {
}
impl<'a> Sunk<'a> {
#[inline]
pub fn empty() -> Sunk<'static> {
Sunk {
bytes: &[],
@@ -168,6 +170,7 @@ impl<'a> Sunk<'a> {
}
}
#[inline]
pub fn from_sink_match(
sunk: &'a SinkMatch<'a>,
original_matches: &'a [Match],
@@ -186,6 +189,7 @@ impl<'a> Sunk<'a> {
}
}
#[inline]
pub fn from_sink_context(
sunk: &'a SinkContext<'a>,
original_matches: &'a [Match],
@@ -204,30 +208,37 @@ impl<'a> Sunk<'a> {
}
}
#[inline]
pub fn context_kind(&self) -> Option<&'a SinkContextKind> {
self.context_kind
}
#[inline]
pub fn bytes(&self) -> &'a [u8] {
self.bytes
}
#[inline]
pub fn matches(&self) -> &'a [Match] {
self.matches
}
#[inline]
pub fn original_matches(&self) -> &'a [Match] {
self.original_matches
}
#[inline]
pub fn lines(&self, line_term: u8) -> LineIter<'a> {
LineIter::new(line_term, self.bytes())
}
#[inline]
pub fn absolute_byte_offset(&self) -> u64 {
self.absolute_byte_offset
}
#[inline]
pub fn line_number(&self) -> Option<u64> {
self.line_number
}
@@ -257,21 +268,7 @@ pub struct PrinterPath<'a>(Cow<'a, [u8]>);
impl<'a> PrinterPath<'a> {
/// Create a new path suitable for printing.
pub fn new(path: &'a Path) -> PrinterPath<'a> {
PrinterPath::new_impl(path)
}
#[cfg(unix)]
fn new_impl(path: &'a Path) -> PrinterPath<'a> {
use std::os::unix::ffi::OsStrExt;
PrinterPath(Cow::Borrowed(path.as_os_str().as_bytes()))
}
#[cfg(not(unix))]
fn new_impl(path: &'a Path) -> PrinterPath<'a> {
PrinterPath(match path.to_string_lossy() {
Cow::Owned(path) => Cow::Owned(path.into_bytes()),
Cow::Borrowed(path) => Cow::Borrowed(path.as_bytes()),
})
PrinterPath(Vec::from_path_lossy(path))
}
/// Create a new printer path from the given path which can be efficiently
@@ -292,7 +289,7 @@ impl<'a> PrinterPath<'a> {
/// path separators that are both replaced by `new_sep`. In all other
/// environments, only `/` is treated as a path separator.
fn replace_separator(&mut self, new_sep: u8) {
let transformed_path: Vec<_> = self.as_bytes().iter().map(|&b| {
let transformed_path: Vec<u8> = self.0.bytes().map(|b| {
if b == b'/' || (cfg!(windows) && b == b'\\') {
new_sep
} else {
@@ -304,7 +301,7 @@ impl<'a> PrinterPath<'a> {
/// Return the raw bytes for this path.
pub fn as_bytes(&self) -> &[u8] {
&*self.0
&self.0
}
}
@@ -317,7 +314,7 @@ pub struct NiceDuration(pub time::Duration);
impl fmt::Display for NiceDuration {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:0.4}s", self.fractional_seconds())
write!(f, "{:0.6}s", self.fractional_seconds())
}
}
@@ -346,21 +343,26 @@ impl Serialize for NiceDuration {
/// Trim prefix ASCII spaces from the given slice and return the corresponding
/// range.
pub fn trim_ascii_prefix_range(slice: &[u8], range: Match) -> Match {
fn is_space(b: &&u8) -> bool {
match **b {
///
/// This stops trimming a prefix as soon as it sees non-whitespace or a line
/// terminator.
pub fn trim_ascii_prefix(
line_term: LineTerminator,
slice: &[u8],
range: Match,
) -> Match {
fn is_space(b: u8) -> bool {
match b {
b'\t' | b'\n' | b'\x0B' | b'\x0C' | b'\r' | b' ' => true,
_ => false,
}
}
let count = slice[range].iter().take_while(is_space).count();
let count = slice[range]
.iter()
.take_while(|&&b| -> bool {
is_space(b) && !line_term.as_bytes().contains(&b)
})
.count();
range.with_start(range.start() + count)
}
/// Trim prefix ASCII spaces from the given slice and return the corresponding
/// sub-slice.
pub fn trim_ascii_prefix(slice: &[u8]) -> &[u8] {
let range = trim_ascii_prefix_range(slice, Match::new(0, slice.len()));
&slice[range]
}

14
grep-regex/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "grep-regex"
version = "0.0.1" #:version
version = "0.1.5" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Use Rust's regex library with the 'grep' crate.
@@ -13,9 +13,9 @@ keywords = ["regex", "grep", "search", "pattern", "line"]
license = "Unlicense/MIT"
[dependencies]
log = "0.4"
grep-matcher = { version = "0.0.1", path = "../grep-matcher" }
regex = "1"
regex-syntax = "0.6"
thread_local = "0.3.5"
utf8-ranges = "1"
aho-corasick = "0.7.3"
grep-matcher = { version = "0.1.2", path = "../grep-matcher" }
log = "0.4.5"
regex = "1.1"
regex-syntax = "0.6.5"
thread_local = "0.3.6"

39
grep-regex/README.md
View File

@@ -1,4 +1,35 @@
grep
----
This is a *library* that provides grep-style line-by-line regex searching (with
comparable performance to `grep` itself).
grep-regex
----------
The `grep-regex` crate provides an implementation of the `Matcher` trait from
the `grep-matcher` crate. This implementation permits Rust's regex engine to
be used in the `grep` crate for fast line oriented searching.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-regex.svg)](https://crates.io/crates/grep-regex)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-regex](https://docs.rs/grep-regex)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-regex = "0.1"
```
and this to your crate root:
```rust
extern crate grep_regex;
```

74
grep-regex/src/config.rs
View File

@@ -1,12 +1,13 @@
use grep_matcher::{ByteSet, LineTerminator};
use regex::bytes::{Regex, RegexBuilder};
use regex_syntax::ast::{self, Ast};
use regex_syntax::hir::Hir;
use regex_syntax::hir::{self, Hir};
use ast::AstAnalysis;
use crlf::crlfify;
use error::Error;
use literal::LiteralSets;
use multi::alternation_literals;
use non_matching::non_matching_bytes;
use strip::strip_from_match;
@@ -67,19 +68,17 @@ impl Config {
/// If there was a problem parsing the given expression then an error
/// is returned.
pub fn hir(&self, pattern: &str) -> Result<ConfiguredHIR, Error> {
let analysis = self.analysis(pattern)?;
let expr = ::regex_syntax::ParserBuilder::new()
.nest_limit(self.nest_limit)
.octal(self.octal)
let ast = self.ast(pattern)?;
let analysis = self.analysis(&ast)?;
let expr = hir::translate::TranslatorBuilder::new()
.allow_invalid_utf8(true)
.ignore_whitespace(self.ignore_whitespace)
.case_insensitive(self.is_case_insensitive(&analysis)?)
.case_insensitive(self.is_case_insensitive(&analysis))
.multi_line(self.multi_line)
.dot_matches_new_line(self.dot_matches_new_line)
.swap_greed(self.swap_greed)
.unicode(self.unicode)
.build()
.parse(pattern)
.translate(pattern, &ast)
.map_err(Error::regex)?;
let expr = match self.line_terminator {
None => expr,
@@ -99,21 +98,34 @@ impl Config {
fn is_case_insensitive(
&self,
analysis: &AstAnalysis,
) -> Result<bool, Error> {
) -> bool {
if self.case_insensitive {
return Ok(true);
return true;
}
if !self.case_smart {
return Ok(false);
return false;
}
Ok(analysis.any_literal() && !analysis.any_uppercase())
analysis.any_literal() && !analysis.any_uppercase()
}
/// Returns true if and only if this config is simple enough such that
/// if the pattern is a simple alternation of literals, then it can be
/// constructed via a plain Aho-Corasick automaton.
///
/// Note that it is OK to return true even when settings like `multi_line`
/// are enabled, since if multi-line can impact the match semantics of a
/// regex, then it is by definition not a simple alternation of literals.
pub fn can_plain_aho_corasick(&self) -> bool {
!self.word
&& !self.case_insensitive
&& !self.case_smart
}
/// Perform analysis on the AST of this pattern.
///
/// This returns an error if the given pattern failed to parse.
fn analysis(&self, pattern: &str) -> Result<AstAnalysis, Error> {
Ok(AstAnalysis::from_ast(&self.ast(pattern)?))
fn analysis(&self, ast: &Ast) -> Result<AstAnalysis, Error> {
Ok(AstAnalysis::from_ast(ast))
}
/// Parse the given pattern into its abstract syntax.
@@ -160,11 +172,28 @@ impl ConfiguredHIR {
non_matching_bytes(&self.expr)
}
/// Returns true if and only if this regex needs to have its match offsets
/// tweaked because of CRLF support. Specifically, this occurs when the
/// CRLF hack is enabled and the regex is line anchored at the end. In
/// this case, matches that end with a `\r` have the `\r` stripped.
pub fn needs_crlf_stripped(&self) -> bool {
self.config.crlf && self.expr.is_line_anchored_end()
}
/// Builds a regular expression from this HIR expression.
pub fn regex(&self) -> Result<Regex, Error> {
self.pattern_to_regex(&self.expr.to_string())
}
/// If this HIR corresponds to an alternation of literals with no
/// capturing groups, then this returns those literals.
pub fn alternation_literals(&self) -> Option<Vec<Vec<u8>>> {
if !self.config.can_plain_aho_corasick() {
return None;
}
alternation_literals(&self.expr)
}
/// Applies the given function to the concrete syntax of this HIR and then
/// generates a new HIR based on the result of the function in a way that
/// preserves the configuration.
@@ -199,23 +228,8 @@ impl ConfiguredHIR {
if self.config.line_terminator.is_none() {
return Ok(None);
}
match LiteralSets::new(&self.expr).one_regex() {
match LiteralSets::new(&self.expr).one_regex(self.config.word) {
None => Ok(None),
/*
if !self.config.crlf {
return Ok(None);
}
// If we're trying to support CRLF, then our "fast" line
// oriented regex needs `$` to be able to match at a `\r\n`
// boundary. The regex engine doesn't support this, so we
// "fake" it by replacing `$` with `(?:\r?$)`. Since the
// fast line regex is only used to detect lines, this never
// infects match offsets. Namely, the regex generated via
// `self.expr` is matched against lines with line terminators
// stripped.
let pattern = crlfify(self.expr.clone()).to_string();
self.pattern_to_regex(&pattern).map(Some)
*/
Some(pattern) => self.pattern_to_regex(&pattern).map(Some),
}
}

107
grep-regex/src/crlf.rs
View File

@@ -1,5 +1,112 @@
use std::collections::HashMap;
use grep_matcher::{Match, Matcher, NoError};
use regex::bytes::Regex;
use regex_syntax::hir::{self, Hir, HirKind};
use config::ConfiguredHIR;
use error::Error;
use matcher::RegexCaptures;
/// A matcher for implementing "word match" semantics.
#[derive(Clone, Debug)]
pub struct CRLFMatcher {
/// The regex.
regex: Regex,
/// A map from capture group name to capture group index.
names: HashMap<String, usize>,
}
impl CRLFMatcher {
/// Create a new matcher from the given pattern that strips `\r` from the
/// end of every match.
///
/// This panics if the given expression doesn't need its CRLF stripped.
pub fn new(expr: &ConfiguredHIR) -> Result<CRLFMatcher, Error> {
assert!(expr.needs_crlf_stripped());
let regex = expr.regex()?;
let mut names = HashMap::new();
for (i, optional_name) in regex.capture_names().enumerate() {
if let Some(name) = optional_name {
names.insert(name.to_string(), i.checked_sub(1).unwrap());
}
}
Ok(CRLFMatcher { regex, names })
}
/// Return the underlying regex used by this matcher.
pub fn regex(&self) -> &Regex {
&self.regex
}
}
impl Matcher for CRLFMatcher {
type Captures = RegexCaptures;
type Error = NoError;
fn find_at(
&self,
haystack: &[u8],
at: usize,
) -> Result<Option<Match>, NoError> {
let m = match self.regex.find_at(haystack, at) {
None => return Ok(None),
Some(m) => Match::new(m.start(), m.end()),
};
Ok(Some(adjust_match(haystack, m)))
}
fn new_captures(&self) -> Result<RegexCaptures, NoError> {
Ok(RegexCaptures::new(self.regex.capture_locations()))
}
fn capture_count(&self) -> usize {
self.regex.captures_len().checked_sub(1).unwrap()
}
fn capture_index(&self, name: &str) -> Option<usize> {
self.names.get(name).map(|i| *i)
}
fn captures_at(
&self,
haystack: &[u8],
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
caps.strip_crlf(false);
let r = self.regex.captures_read_at(
caps.locations_mut(), haystack, at,
);
if !r.is_some() {
return Ok(false);
}
// If the end of our match includes a `\r`, then strip it from all
// capture groups ending at the same location.
let end = caps.locations().get(0).unwrap().1;
if end > 0 && haystack.get(end - 1) == Some(&b'\r') {
caps.strip_crlf(true);
}
Ok(true)
}
// We specifically do not implement other methods like find_iter or
// captures_iter. Namely, the iter methods are guaranteed to be correct
// by virtue of implementing find_at and captures_at above.
}
/// If the given match ends with a `\r`, then return a new match that ends
/// immediately before the `\r`.
pub fn adjust_match(haystack: &[u8], m: Match) -> Match {
if m.end() > 0 && haystack.get(m.end() - 1) == Some(&b'\r') {
m.with_end(m.end() - 1)
} else {
m
}
}
/// Substitutes all occurrences of multi-line enabled `$` with `(?:\r?$)`.
///
/// This does not preserve the exact semantics of the given expression,

3
grep-regex/src/lib.rs
View File

@@ -4,13 +4,13 @@ An implementation of `grep-matcher`'s `Matcher` trait for Rust's regex engine.
#![deny(missing_docs)]
extern crate aho_corasick;
extern crate grep_matcher;
#[macro_use]
extern crate log;
extern crate regex;
extern crate regex_syntax;
extern crate thread_local;
extern crate utf8_ranges;
pub use error::{Error, ErrorKind};
pub use matcher::{RegexCaptures, RegexMatcher, RegexMatcherBuilder};
@@ -21,6 +21,7 @@ mod crlf;
mod error;
mod literal;
mod matcher;
mod multi;
mod non_matching;
mod strip;
mod util;

45
grep-regex/src/literal.rs
View File

@@ -47,18 +47,23 @@ impl LiteralSets {
/// generated these literal sets. The idea here is that the pattern
/// returned by this method is much cheaper to search for. i.e., It is
/// usually a single literal or an alternation of literals.
pub fn one_regex(&self) -> Option<String> {
pub fn one_regex(&self, word: bool) -> Option<String> {
// TODO: The logic in this function is basically inscrutable. It grew
// organically in the old grep 0.1 crate. Ideally, it would be
// re-worked. In fact, the entire inner literal extraction should be
// re-worked. Actually, most of regex-syntax's literal extraction
// should also be re-worked. Alas... only so much time in the day.
if self.prefixes.all_complete() && !self.prefixes.is_empty() {
debug!("literal prefixes detected: {:?}", self.prefixes);
// When this is true, the regex engine will do a literal scan,
// so we don't need to return anything.
return None;
if !word {
if self.prefixes.all_complete() && !self.prefixes.is_empty() {
debug!("literal prefixes detected: {:?}", self.prefixes);
// When this is true, the regex engine will do a literal scan,
// so we don't need to return anything. But we only do this
// if we aren't doing a word regex, since a word regex adds
// a `(?:\W|^)` to the beginning of the regex, thereby
// defeating the regex engine's literal detection.
return None;
}
}
// Out of inner required literals, prefixes and suffixes, which one
@@ -166,10 +171,10 @@ fn union_required(expr: &Hir, lits: &mut Literals) {
lits.cut();
continue;
}
if lits2.contains_empty() {
if lits2.contains_empty() || !is_simple(&e) {
lits.cut();
}
if !lits.cross_product(&lits2) {
if !lits.cross_product(&lits2) || !lits2.any_complete() {
// If this expression couldn't yield any literal that
// could be extended, then we need to quit. Since we're
// short-circuiting, we also need to freeze every member.
@@ -250,6 +255,20 @@ fn alternate_literals<F: FnMut(&Hir, &mut Literals)>(
}
}
fn is_simple(expr: &Hir) -> bool {
match *expr.kind() {
HirKind::Empty
| HirKind::Literal(_)
| HirKind::Class(_)
| HirKind::Repetition(_)
| HirKind::Concat(_)
| HirKind::Alternation(_) => true,
HirKind::Anchor(_)
| HirKind::WordBoundary(_)
| HirKind::Group(_) => false,
}
}
/// Return the number of characters in the given class.
fn count_unicode_class(cls: &hir::ClassUnicode) -> u32 {
cls.iter().map(|r| 1 + (r.end() as u32 - r.start() as u32)).sum()
@@ -271,7 +290,7 @@ mod tests {
}
fn one_regex(pattern: &str) -> Option<String> {
sets(pattern).one_regex()
sets(pattern).one_regex(false)
}
// Put a pattern into the same format as the one returned by `one_regex`.
@@ -301,4 +320,12 @@ mod tests {
// assert_eq!(one_regex(r"\w(foo|bar|baz)"), pat("foo|bar|baz"));
// assert_eq!(one_regex(r"\w(foo|bar|baz)\w"), pat("foo|bar|baz"));
}
#[test]
fn regression_1064() {
// Regression from:
// https://github.com/BurntSushi/ripgrep/issues/1064
// assert_eq!(one_regex(r"a.*c"), pat("a"));
assert_eq!(one_regex(r"a(.*c)"), pat("a"));
}
}

265
grep-regex/src/matcher.rs
View File

@@ -6,7 +6,9 @@ use grep_matcher::{
use regex::bytes::{CaptureLocations, Regex};
use config::{Config, ConfiguredHIR};
use crlf::CRLFMatcher;
use error::Error;
use multi::MultiLiteralMatcher;
use word::WordMatcher;
/// A builder for constructing a `Matcher` using regular expressions.
@@ -49,14 +51,61 @@ impl RegexMatcherBuilder {
if let Some(ref re) = fast_line_regex {
trace!("extracted fast line regex: {:?}", re);
}
let matcher = RegexMatcherImpl::new(&chir)?;
trace!("final regex: {:?}", matcher.regex());
Ok(RegexMatcher {
config: self.config.clone(),
matcher: RegexMatcherImpl::new(&chir)?,
matcher: matcher,
fast_line_regex: fast_line_regex,
non_matching_bytes: non_matching_bytes,
})
}
/// Build a new matcher from a plain alternation of literals.
///
/// Depending on the configuration set by the builder, this may be able to
/// build a matcher substantially faster than by joining the patterns with
/// a `|` and calling `build`.
pub fn build_literals<B: AsRef<str>>(
&self,
literals: &[B],
) -> Result<RegexMatcher, Error> {
let mut has_escape = false;
let mut slices = vec![];
for lit in literals {
slices.push(lit.as_ref());
has_escape = has_escape || lit.as_ref().contains('\\');
}
// Even when we have a fixed set of literals, we might still want to
// use the regex engine. Specifically, if any string has an escape
// in it, then we probably can't feed it to Aho-Corasick without
// removing the escape. Additionally, if there are any particular
// special match semantics we need to honor, that Aho-Corasick isn't
// enough. Finally, the regex engine can do really well with a small
// number of literals (at time of writing, this is changing soon), so
// we use it when there's a small set.
//
// Yes, this is one giant hack. Ideally, this entirely separate literal
// matcher that uses Aho-Corasick would be pushed down into the regex
// engine.
if has_escape
|| !self.config.can_plain_aho_corasick()
|| literals.len() < 40
{
return self.build(&slices.join("|"));
}
let matcher = MultiLiteralMatcher::new(&slices)?;
let imp = RegexMatcherImpl::MultiLiteral(matcher);
Ok(RegexMatcher {
config: self.config.clone(),
matcher: imp,
fast_line_regex: None,
non_matching_bytes: ByteSet::empty(),
})
}
/// Set the value for the case insensitive (`i`) flag.
///
/// When enabled, letters in the pattern will match both upper case and
@@ -263,7 +312,7 @@ impl RegexMatcherBuilder {
/// be slightly different than what one would expect given the pattern.
/// This is the trade off made: in many cases, `$` will "just work" in the
/// presence of `\r\n` line terminators, but matches may require some
/// trimming to faithfully represent the indended match.
/// trimming to faithfully represent the intended match.
///
/// Note that if you do not wish to set the line terminator but would still
/// like `$` to match `\r\n` line terminators, then it is valid to call
@@ -323,8 +372,15 @@ impl RegexMatcher {
/// Create a new matcher from the given pattern using the default
/// configuration, but matches lines terminated by `\n`.
///
/// This returns an error if the given pattern contains a literal `\n`.
/// Other uses of `\n` (such as in `\s`) are removed transparently.
/// This is meant to be a convenience constructor for using a
/// `RegexMatcherBuilder` and setting its
/// [`line_terminator`](struct.RegexMatcherBuilder.html#method.line_terminator)
/// to `\n`. The purpose of using this constructor is to permit special
/// optimizations that help speed up line oriented search. These types of
/// optimizations are only appropriate when matches span no more than one
/// line. For this reason, this constructor will return an error if the
/// given pattern contains a literal `\n`. Other uses of `\n` (such as in
/// `\s`) are removed transparently.
pub fn new_line_matcher(pattern: &str) -> Result<RegexMatcher, Error> {
RegexMatcherBuilder::new()
.line_terminator(Some(b'\n'))
@@ -337,6 +393,13 @@ impl RegexMatcher {
enum RegexMatcherImpl {
/// The standard matcher used for all regular expressions.
Standard(StandardMatcher),
/// A matcher for an alternation of plain literals.
MultiLiteral(MultiLiteralMatcher),
/// A matcher that strips `\r` from the end of matches.
///
/// This is only used when the CRLF hack is enabled and the regex is line
/// anchored at the end.
CRLF(CRLFMatcher),
/// A matcher that only matches at word boundaries. This transforms the
/// regex to `(^|\W)(...)($|\W)` instead of the more intuitive `\b(...)\b`.
/// Because of this, the WordMatcher provides its own implementation of
@@ -351,10 +414,28 @@ impl RegexMatcherImpl {
fn new(expr: &ConfiguredHIR) -> Result<RegexMatcherImpl, Error> {
if expr.config().word {
Ok(RegexMatcherImpl::Word(WordMatcher::new(expr)?))
} else if expr.needs_crlf_stripped() {
Ok(RegexMatcherImpl::CRLF(CRLFMatcher::new(expr)?))
} else {
if let Some(lits) = expr.alternation_literals() {
if lits.len() >= 40 {
let matcher = MultiLiteralMatcher::new(&lits)?;
return Ok(RegexMatcherImpl::MultiLiteral(matcher));
}
}
Ok(RegexMatcherImpl::Standard(StandardMatcher::new(expr)?))
}
}
/// Return the underlying regex object used.
fn regex(&self) -> String {
match *self {
RegexMatcherImpl::Word(ref x) => x.regex().to_string(),
RegexMatcherImpl::CRLF(ref x) => x.regex().to_string(),
RegexMatcherImpl::MultiLiteral(_) => "<N/A>".to_string(),
RegexMatcherImpl::Standard(ref x) => x.regex.to_string(),
}
}
}
// This implementation just dispatches on the internal matcher impl except
@@ -372,6 +453,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find_at(haystack, at),
MultiLiteral(ref m) => m.find_at(haystack, at),
CRLF(ref m) => m.find_at(haystack, at),
Word(ref m) => m.find_at(haystack, at),
}
}
@@ -380,6 +463,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.new_captures(),
MultiLiteral(ref m) => m.new_captures(),
CRLF(ref m) => m.new_captures(),
Word(ref m) => m.new_captures(),
}
}
@@ -388,6 +473,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.capture_count(),
MultiLiteral(ref m) => m.capture_count(),
CRLF(ref m) => m.capture_count(),
Word(ref m) => m.capture_count(),
}
}
@@ -396,6 +483,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.capture_index(name),
MultiLiteral(ref m) => m.capture_index(name),
CRLF(ref m) => m.capture_index(name),
Word(ref m) => m.capture_index(name),
}
}
@@ -404,6 +493,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find(haystack),
MultiLiteral(ref m) => m.find(haystack),
CRLF(ref m) => m.find(haystack),
Word(ref m) => m.find(haystack),
}
}
@@ -418,6 +509,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.find_iter(haystack, matched),
MultiLiteral(ref m) => m.find_iter(haystack, matched),
CRLF(ref m) => m.find_iter(haystack, matched),
Word(ref m) => m.find_iter(haystack, matched),
}
}
@@ -432,6 +525,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.try_find_iter(haystack, matched),
MultiLiteral(ref m) => m.try_find_iter(haystack, matched),
CRLF(ref m) => m.try_find_iter(haystack, matched),
Word(ref m) => m.try_find_iter(haystack, matched),
}
}
@@ -444,6 +539,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures(haystack, caps),
MultiLiteral(ref m) => m.captures(haystack, caps),
CRLF(ref m) => m.captures(haystack, caps),
Word(ref m) => m.captures(haystack, caps),
}
}
@@ -459,6 +556,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures_iter(haystack, caps, matched),
MultiLiteral(ref m) => m.captures_iter(haystack, caps, matched),
CRLF(ref m) => m.captures_iter(haystack, caps, matched),
Word(ref m) => m.captures_iter(haystack, caps, matched),
}
}
@@ -474,6 +573,10 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.try_captures_iter(haystack, caps, matched),
MultiLiteral(ref m) => {
m.try_captures_iter(haystack, caps, matched)
}
CRLF(ref m) => m.try_captures_iter(haystack, caps, matched),
Word(ref m) => m.try_captures_iter(haystack, caps, matched),
}
}
@@ -487,6 +590,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.captures_at(haystack, at, caps),
MultiLiteral(ref m) => m.captures_at(haystack, at, caps),
CRLF(ref m) => m.captures_at(haystack, at, caps),
Word(ref m) => m.captures_at(haystack, at, caps),
}
}
@@ -502,6 +607,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.replace(haystack, dst, append),
MultiLiteral(ref m) => m.replace(haystack, dst, append),
CRLF(ref m) => m.replace(haystack, dst, append),
Word(ref m) => m.replace(haystack, dst, append),
}
}
@@ -520,6 +627,12 @@ impl Matcher for RegexMatcher {
Standard(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
MultiLiteral(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
CRLF(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
Word(ref m) => {
m.replace_with_captures(haystack, caps, dst, append)
}
@@ -530,6 +643,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.is_match(haystack),
MultiLiteral(ref m) => m.is_match(haystack),
CRLF(ref m) => m.is_match(haystack),
Word(ref m) => m.is_match(haystack),
}
}
@@ -542,6 +657,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.is_match_at(haystack, at),
MultiLiteral(ref m) => m.is_match_at(haystack, at),
CRLF(ref m) => m.is_match_at(haystack, at),
Word(ref m) => m.is_match_at(haystack, at),
}
}
@@ -553,6 +670,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.shortest_match(haystack),
MultiLiteral(ref m) => m.shortest_match(haystack),
CRLF(ref m) => m.shortest_match(haystack),
Word(ref m) => m.shortest_match(haystack),
}
}
@@ -565,6 +684,8 @@ impl Matcher for RegexMatcher {
use self::RegexMatcherImpl::*;
match self.matcher {
Standard(ref m) => m.shortest_match_at(haystack, at),
MultiLiteral(ref m) => m.shortest_match_at(haystack, at),
CRLF(ref m) => m.shortest_match_at(haystack, at),
Word(ref m) => m.shortest_match_at(haystack, at),
}
}
@@ -664,7 +785,9 @@ impl Matcher for StandardMatcher {
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
Ok(self.regex.captures_read_at(&mut caps.locs, haystack, at).is_some())
Ok(self.regex.captures_read_at(
&mut caps.locations_mut(), haystack, at,
).is_some())
}
fn shortest_match_at(
@@ -691,34 +814,84 @@ impl Matcher for StandardMatcher {
/// index of the group using the corresponding matcher's `capture_index`
/// method, and then use that index with `RegexCaptures::get`.
#[derive(Clone, Debug)]
pub struct RegexCaptures {
/// Where the locations are stored.
locs: CaptureLocations,
/// These captures behave as if the capturing groups begin at the given
/// offset. When set to `0`, this has no affect and capture groups are
/// indexed like normal.
///
/// This is useful when building matchers that wrap arbitrary regular
/// expressions. For example, `WordMatcher` takes an existing regex `re`
/// and creates `(?:^|\W)(re)(?:$|\W)`, but hides the fact that the regex
/// has been wrapped from the caller. In order to do this, the matcher
/// and the capturing groups must behave as if `(re)` is the `0`th capture
/// group.
offset: usize,
pub struct RegexCaptures(RegexCapturesImp);
#[derive(Clone, Debug)]
enum RegexCapturesImp {
AhoCorasick {
/// The start and end of the match, corresponding to capture group 0.
mat: Option<Match>,
},
Regex {
/// Where the locations are stored.
locs: CaptureLocations,
/// These captures behave as if the capturing groups begin at the given
/// offset. When set to `0`, this has no affect and capture groups are
/// indexed like normal.
///
/// This is useful when building matchers that wrap arbitrary regular
/// expressions. For example, `WordMatcher` takes an existing regex
/// `re` and creates `(?:^|\W)(re)(?:$|\W)`, but hides the fact that
/// the regex has been wrapped from the caller. In order to do this,
/// the matcher and the capturing groups must behave as if `(re)` is
/// the `0`th capture group.
offset: usize,
/// When enable, the end of a match has `\r` stripped from it, if one
/// exists.
strip_crlf: bool,
},
}
impl Captures for RegexCaptures {
fn len(&self) -> usize {
self.locs.len().checked_sub(self.offset).unwrap()
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => 1,
RegexCapturesImp::Regex { ref locs, offset, .. } => {
locs.len().checked_sub(offset).unwrap()
}
}
}
fn get(&self, i: usize) -> Option<Match> {
let actual = i.checked_add(self.offset).unwrap();
self.locs.pos(actual).map(|(s, e)| Match::new(s, e))
match self.0 {
RegexCapturesImp::AhoCorasick { mat, .. } => {
if i == 0 {
mat
} else {
None
}
}
RegexCapturesImp::Regex { ref locs, offset, strip_crlf } => {
if !strip_crlf {
let actual = i.checked_add(offset).unwrap();
return locs.pos(actual).map(|(s, e)| Match::new(s, e));
}
// currently don't support capture offsetting with CRLF
// stripping
assert_eq!(offset, 0);
let m = match locs.pos(i).map(|(s, e)| Match::new(s, e)) {
None => return None,
Some(m) => m,
};
// If the end position of this match corresponds to the end
// position of the overall match, then we apply our CRLF
// stripping. Otherwise, we cannot assume stripping is correct.
if i == 0 || m.end() == locs.pos(0).unwrap().1 {
Some(m.with_end(m.end() - 1))
} else {
Some(m)
}
}
}
}
}
impl RegexCaptures {
pub(crate) fn simple() -> RegexCaptures {
RegexCaptures(RegexCapturesImp::AhoCorasick { mat: None })
}
pub(crate) fn new(locs: CaptureLocations) -> RegexCaptures {
RegexCaptures::with_offset(locs, 0)
}
@@ -727,11 +900,53 @@ impl RegexCaptures {
locs: CaptureLocations,
offset: usize,
) -> RegexCaptures {
RegexCaptures { locs, offset }
RegexCaptures(RegexCapturesImp::Regex {
locs, offset, strip_crlf: false,
})
}
pub(crate) fn locations(&mut self) -> &mut CaptureLocations {
&mut self.locs
pub(crate) fn locations(&self) -> &CaptureLocations {
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("getting locations for simple captures is invalid")
}
RegexCapturesImp::Regex { ref locs, .. } => {
locs
}
}
}
pub(crate) fn locations_mut(&mut self) -> &mut CaptureLocations {
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("getting locations for simple captures is invalid")
}
RegexCapturesImp::Regex { ref mut locs, .. } => {
locs
}
}
}
pub(crate) fn strip_crlf(&mut self, yes: bool) {
match self.0 {
RegexCapturesImp::AhoCorasick { .. } => {
panic!("setting strip_crlf for simple captures is invalid")
}
RegexCapturesImp::Regex { ref mut strip_crlf, .. } => {
*strip_crlf = yes;
}
}
}
pub(crate) fn set_simple(&mut self, one: Option<Match>) {
match self.0 {
RegexCapturesImp::AhoCorasick { ref mut mat } => {
*mat = one;
}
RegexCapturesImp::Regex { .. } => {
panic!("setting simple captures for regex is invalid")
}
}
}
}

127
grep-regex/src/multi.rs Normal file
View File

@@ -0,0 +1,127 @@
use aho_corasick::{AhoCorasick, AhoCorasickBuilder, MatchKind};
use grep_matcher::{Matcher, Match, NoError};
use regex_syntax::hir::Hir;
use error::Error;
use matcher::RegexCaptures;
/// A matcher for an alternation of literals.
///
/// Ideally, this optimization would be pushed down into the regex engine, but
/// making this work correctly there would require quite a bit of refactoring.
/// Moreover, doing it one layer above lets us do thing like, "if we
/// specifically only want to search for literals, then don't bother with
/// regex parsing at all."
#[derive(Clone, Debug)]
pub struct MultiLiteralMatcher {
/// The Aho-Corasick automaton.
ac: AhoCorasick,
}
impl MultiLiteralMatcher {
/// Create a new multi-literal matcher from the given literals.
pub fn new<B: AsRef<[u8]>>(
literals: &[B],
) -> Result<MultiLiteralMatcher, Error> {
let ac = AhoCorasickBuilder::new()
.match_kind(MatchKind::LeftmostFirst)
.auto_configure(literals)
.build_with_size::<usize, _, _>(literals)
.map_err(Error::regex)?;
Ok(MultiLiteralMatcher { ac })
}
}
impl Matcher for MultiLiteralMatcher {
type Captures = RegexCaptures;
type Error = NoError;
fn find_at(
&self,
haystack: &[u8],
at: usize,
) -> Result<Option<Match>, NoError> {
match self.ac.find(&haystack[at..]) {
None => Ok(None),
Some(m) => Ok(Some(Match::new(at + m.start(), at + m.end()))),
}
}
fn new_captures(&self) -> Result<RegexCaptures, NoError> {
Ok(RegexCaptures::simple())
}
fn capture_count(&self) -> usize {
1
}
fn capture_index(&self, _: &str) -> Option<usize> {
None
}
fn captures_at(
&self,
haystack: &[u8],
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
caps.set_simple(None);
let mat = self.find_at(haystack, at)?;
caps.set_simple(mat);
Ok(mat.is_some())
}
// We specifically do not implement other methods like find_iter. Namely,
// the iter methods are guaranteed to be correct by virtue of implementing
// find_at above.
}
/// Alternation literals checks if the given HIR is a simple alternation of
/// literals, and if so, returns them. Otherwise, this returns None.
pub fn alternation_literals(expr: &Hir) -> Option<Vec<Vec<u8>>> {
use regex_syntax::hir::{HirKind, Literal};
// This is pretty hacky, but basically, if `is_alternation_literal` is
// true, then we can make several assumptions about the structure of our
// HIR. This is what justifies the `unreachable!` statements below.
if !expr.is_alternation_literal() {
return None;
}
let alts = match *expr.kind() {
HirKind::Alternation(ref alts) => alts,
_ => return None, // one literal isn't worth it
};
let extendlit = |lit: &Literal, dst: &mut Vec<u8>| {
match *lit {
Literal::Unicode(c) => {
let mut buf = [0; 4];
dst.extend_from_slice(c.encode_utf8(&mut buf).as_bytes());
}
Literal::Byte(b) => {
dst.push(b);
}
}
};
let mut lits = vec![];
for alt in alts {
let mut lit = vec![];
match *alt.kind() {
HirKind::Empty => {}
HirKind::Literal(ref x) => extendlit(x, &mut lit),
HirKind::Concat(ref exprs) => {
for e in exprs {
match *e.kind() {
HirKind::Literal(ref x) => extendlit(x, &mut lit),
_ => unreachable!("expected literal, got {:?}", e),
}
}
}
_ => unreachable!("expected literal or concat, got {:?}", alt),
}
lits.push(lit);
}
Some(lits)
}

2
grep-regex/src/non_matching.rs
View File

@@ -1,6 +1,6 @@
use grep_matcher::ByteSet;
use regex_syntax::hir::{self, Hir, HirKind};
use utf8_ranges::Utf8Sequences;
use regex_syntax::utf8::Utf8Sequences;
/// Return a confirmed set of non-matching bytes from the given expression.
pub fn non_matching_bytes(expr: &Hir) -> ByteSet {

9
grep-regex/src/word.rs
View File

@@ -55,6 +55,11 @@ impl WordMatcher {
}
Ok(WordMatcher { regex, names, locs })
}
/// Return the underlying regex used by this matcher.
pub fn regex(&self) -> &Regex {
&self.regex
}
}
impl Matcher for WordMatcher {
@@ -98,7 +103,9 @@ impl Matcher for WordMatcher {
at: usize,
caps: &mut RegexCaptures,
) -> Result<bool, NoError> {
let r = self.regex.captures_read_at(caps.locations(), haystack, at);
let r = self.regex.captures_read_at(
caps.locations_mut(), haystack, at,
);
Ok(r.is_some())
}

32
grep-searcher/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "grep-searcher"
version = "0.0.1" #:version
version = "0.1.6" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Fast line oriented regex searching as a library.
@@ -13,23 +13,21 @@ keywords = ["regex", "grep", "egrep", "search", "pattern"]
license = "Unlicense/MIT"
[dependencies]
bytecount = "0.3.1"
encoding_rs = "0.8"
encoding_rs_io = "0.1"
grep-matcher = { version = "0.0.1", path = "../grep-matcher" }
log = "0.4"
memchr = "2"
memmap = "0.6"
bstr = { version = "0.2.0", default-features = false, features = ["std"] }
bytecount = "0.5"
encoding_rs = "0.8.14"
encoding_rs_io = "0.1.6"
grep-matcher = { version = "0.1.2", path = "../grep-matcher" }
log = "0.4.5"
memmap = "0.7"
[dev-dependencies]
grep-regex = { version = "0.0.1", path = "../grep-regex" }
regex = "1"
grep-regex = { version = "0.1.3", path = "../grep-regex" }
regex = "1.1"
[features]
avx-accel = [
"bytecount/avx-accel",
]
simd-accel = [
"bytecount/simd-accel",
"encoding_rs/simd-accel",
]
default = ["bytecount/runtime-dispatch-simd"]
simd-accel = ["encoding_rs/simd-accel"]
# This feature is DEPRECATED. Runtime dispatch is used for SIMD now.
avx-accel = []

41
grep-searcher/README.md
View File

@@ -1,4 +1,37 @@
grep
----
This is a *library* that provides grep-style line-by-line regex searching (with
comparable performance to `grep` itself).
grep-searcher
-------------
A high level library for executing fast line oriented searches. This handles
things like reporting contextual lines, counting lines, inverting a search,
detecting binary data, automatic UTF-16 transcoding and deciding whether or not
to use memory maps.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep-searcher.svg)](https://crates.io/crates/grep-searcher)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep-searcher](https://docs.rs/grep-searcher)
**NOTE:** You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
[`grep`](https://docs.rs/grep)
crate.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep-searcher = "0.1"
```
and this to your crate root:
```rust
extern crate grep_searcher;
```

2
grep-searcher/examples/search-stdin.rs
View File

@@ -17,7 +17,7 @@ fn main() {
}
}
fn example() -> Result<(), Box<Error>> {
fn example() -> Result<(), Box<dyn Error>> {
let pattern = match env::args().nth(1) {
Some(pattern) => pattern,
None => return Err(From::from(format!(

5
grep-searcher/src/lib.rs
View File

@@ -74,14 +74,11 @@ fn example() -> Result<(), Box<Error>> {
let mut matches: Vec<(u64, String)> = vec![];
Searcher::new().search_slice(&matcher, SHERLOCK, UTF8(|lnum, line| {
// We are guaranteed to find a match, so the unwrap is OK.
eprintln!("LINE: {:?}", line);
let mymatch = matcher.find(line.as_bytes())?.unwrap();
matches.push((lnum, line[mymatch].to_string()));
Ok(true)
}))?;
eprintln!("MATCHES: {:?}", matches);
assert_eq!(matches.len(), 2);
assert_eq!(
matches[0],
@@ -102,13 +99,13 @@ searches stdin.
#![deny(missing_docs)]
extern crate bstr;
extern crate bytecount;
extern crate encoding_rs;
extern crate encoding_rs_io;
extern crate grep_matcher;
#[macro_use]
extern crate log;
extern crate memchr;
extern crate memmap;
#[cfg(test)]
extern crate regex;

110
grep-searcher/src/line_buffer.rs
View File

@@ -1,8 +1,7 @@
use std::cmp;
use std::io;
use std::ptr;
use memchr::{memchr, memrchr};
use bstr::ByteSlice;
/// The default buffer capacity that we use for the line buffer.
pub(crate) const DEFAULT_BUFFER_CAPACITY: usize = 8 * (1<<10); // 8 KB
@@ -258,6 +257,13 @@ impl<'b, R: io::Read> LineBufferReader<'b, R> {
self.line_buffer.buffer()
}
/// Return the buffer as a BStr, used for convenient equality checking
/// in tests only.
#[cfg(test)]
fn bstr(&self) -> &::bstr::BStr {
self.buffer().as_bstr()
}
/// Consume the number of bytes provided. This must be less than or equal
/// to the number of bytes returned by `buffer`.
pub fn consume(&mut self, amt: usize) {
@@ -294,8 +300,8 @@ pub struct LineBuffer {
/// has been exhausted.
last_lineterm: usize,
/// The end position of the buffer. This is always greater than or equal to
/// lastnl. The bytes between lastnl and end, if any, always correspond to
/// a partial line.
/// last_lineterm. The bytes between last_lineterm and end, if any, always
/// correspond to a partial line.
end: usize,
/// The absolute byte offset corresponding to `pos`. This is most typically
/// not a valid index into addressable memory, but rather, an offset that
@@ -312,6 +318,14 @@ pub struct LineBuffer {
}
impl LineBuffer {
/// Set the binary detection method used on this line buffer.
///
/// This permits dynamically changing the binary detection strategy on
/// an existing line buffer without needing to create a new one.
pub fn set_binary_detection(&mut self, binary: BinaryDetection) {
self.config.binary = binary;
}
/// Reset this buffer, such that it can be used with a new reader.
fn clear(&mut self) {
self.pos = 0;
@@ -396,7 +410,7 @@ impl LineBuffer {
assert_eq!(self.pos, 0);
loop {
self.ensure_capacity()?;
let readlen = rdr.read(self.free_buffer())?;
let readlen = rdr.read(self.free_buffer().as_bytes_mut())?;
if readlen == 0 {
// We're only done reading for good once the caller has
// consumed everything.
@@ -416,7 +430,7 @@ impl LineBuffer {
match self.config.binary {
BinaryDetection::None => {} // nothing to do
BinaryDetection::Quit(byte) => {
if let Some(i) = memchr(byte, newbytes) {
if let Some(i) = newbytes.find_byte(byte) {
self.end = oldend + i;
self.last_lineterm = self.end;
self.binary_byte_offset =
@@ -444,7 +458,7 @@ impl LineBuffer {
}
// Update our `last_lineterm` positions if we read one.
if let Some(i) = memrchr(self.config.lineterm, newbytes) {
if let Some(i) = newbytes.rfind_byte(self.config.lineterm) {
self.last_lineterm = oldend + i + 1;
return Ok(true);
}
@@ -467,25 +481,11 @@ impl LineBuffer {
return;
}
assert!(self.pos < self.end && self.end <= self.buf.len());
let roll_len = self.end - self.pos;
unsafe {
// SAFETY: A buffer contains Copy data, so there's no problem
// moving it around. Safety also depends on our indices being
// in bounds, which they should always be, and we enforce with
// an assert above.
//
// TODO: It seems like it should be possible to do this in safe
// code that results in the same codegen.
ptr::copy(
self.buf[self.pos..].as_ptr(),
self.buf.as_mut_ptr(),
roll_len,
);
}
self.buf.copy_within_str(self.pos..self.end, 0);
self.pos = 0;
self.last_lineterm = roll_len;
self.end = self.last_lineterm;
self.end = roll_len;
}
/// Ensures that the internal buffer has a non-zero amount of free space
@@ -518,14 +518,15 @@ impl LineBuffer {
}
}
/// Replaces `src` with `replacement` in bytes.
/// Replaces `src` with `replacement` in bytes, and return the offset of the
/// first replacement, if one exists.
fn replace_bytes(bytes: &mut [u8], src: u8, replacement: u8) -> Option<usize> {
if src == replacement {
return None;
}
let mut first_pos = None;
let mut pos = 0;
while let Some(i) = memchr(src, &bytes[pos..]).map(|i| pos + i) {
while let Some(i) = bytes[pos..].find_byte(src).map(|i| pos + i) {
if first_pos.is_none() {
first_pos = Some(i);
}
@@ -542,6 +543,7 @@ fn replace_bytes(bytes: &mut [u8], src: u8, replacement: u8) -> Option<usize> {
#[cfg(test)]
mod tests {
use std::str;
use bstr::{ByteSlice, ByteVec};
use super::*;
const SHERLOCK: &'static str = "\
@@ -557,18 +559,14 @@ and exhibited clearly, with a label attached.\
slice.to_string()
}
fn btos(slice: &[u8]) -> &str {
str::from_utf8(slice).unwrap()
}
fn replace_str(
slice: &str,
src: u8,
replacement: u8,
) -> (String, Option<usize>) {
let mut dst = slice.to_string().into_bytes();
let mut dst = Vec::from(slice);
let result = replace_bytes(&mut dst, src, replacement);
(String::from_utf8(dst).unwrap(), result)
(dst.into_string().unwrap(), result)
}
#[test]
@@ -589,7 +587,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\n");
assert_eq!(rdr.bstr(), "homer\nlisa\n");
assert_eq!(rdr.absolute_byte_offset(), 0);
rdr.consume(5);
assert_eq!(rdr.absolute_byte_offset(), 5);
@@ -597,7 +595,7 @@ and exhibited clearly, with a label attached.\
assert_eq!(rdr.absolute_byte_offset(), 11);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "maggie");
assert_eq!(rdr.bstr(), "maggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -612,7 +610,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -627,7 +625,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\n");
assert_eq!(rdr.bstr(), "\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -642,7 +640,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\n\n");
assert_eq!(rdr.bstr(), "\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -682,10 +680,10 @@ and exhibited clearly, with a label attached.\
let mut got = vec![];
while rdr.fill().unwrap() {
got.extend(rdr.buffer());
got.push_str(rdr.buffer());
rdr.consume_all();
}
assert_eq!(bytes, btos(&got));
assert_eq!(bytes, got.as_bstr());
assert_eq!(rdr.absolute_byte_offset(), bytes.len() as u64);
assert_eq!(rdr.binary_byte_offset(), None);
}
@@ -700,11 +698,11 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\n");
assert_eq!(rdr.bstr(), "homer\n");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "lisa\n");
assert_eq!(rdr.bstr(), "lisa\n");
rdr.consume_all();
// This returns an error because while we have just enough room to
@@ -714,11 +712,11 @@ and exhibited clearly, with a label attached.\
assert!(rdr.fill().is_err());
// We can mush on though!
assert_eq!(btos(rdr.buffer()), "m");
assert_eq!(rdr.bstr(), "m");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "aggie");
assert_eq!(rdr.bstr(), "aggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -734,16 +732,16 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\n");
assert_eq!(rdr.bstr(), "homer\n");
rdr.consume_all();
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "lisa\n");
assert_eq!(rdr.bstr(), "lisa\n");
rdr.consume_all();
// We have just enough space.
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "maggie");
assert_eq!(rdr.bstr(), "maggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -759,7 +757,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(rdr.fill().is_err());
assert_eq!(btos(rdr.buffer()), "");
assert_eq!(rdr.bstr(), "");
}
#[test]
@@ -771,7 +769,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli\x00sa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nli\x00sa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -790,7 +788,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli");
assert_eq!(rdr.bstr(), "homer\nli");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -807,7 +805,7 @@ and exhibited clearly, with a label attached.\
let mut rdr = LineBufferReader::new(bytes.as_bytes(), &mut linebuf);
assert!(!rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "");
assert_eq!(rdr.bstr(), "");
assert_eq!(rdr.absolute_byte_offset(), 0);
assert_eq!(rdr.binary_byte_offset(), Some(0));
}
@@ -823,7 +821,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -842,7 +840,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -860,7 +858,7 @@ and exhibited clearly, with a label attached.\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\
assert_eq!(rdr.bstr(), "\
For the Doctor Watsons of this world, as opposed to the Sherlock
Holmeses, s\
");
@@ -883,7 +881,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nli\nsa\nmaggie\n");
assert_eq!(rdr.bstr(), "homer\nli\nsa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -902,7 +900,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "\nhomer\nlisa\nmaggie\n");
assert_eq!(rdr.bstr(), "\nhomer\nlisa\nmaggie\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -921,7 +919,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());
@@ -940,7 +938,7 @@ Holmeses, s\
assert!(rdr.buffer().is_empty());
assert!(rdr.fill().unwrap());
assert_eq!(btos(rdr.buffer()), "homer\nlisa\nmaggie\n\n");
assert_eq!(rdr.bstr(), "homer\nlisa\nmaggie\n\n");
rdr.consume_all();
assert!(!rdr.fill().unwrap());

39
grep-searcher/src/lines.rs
View File

@@ -2,8 +2,8 @@
A collection of routines for performing operations on lines.
*/
use bstr::ByteSlice;
use bytecount;
use memchr::{memchr, memrchr};
use grep_matcher::{LineTerminator, Match};
/// An iterator over lines in a particular slice of bytes.
@@ -72,9 +72,20 @@ impl LineStep {
///
/// The range returned includes the line terminator. Ranges are always
/// non-empty.
pub fn next(&mut self, mut bytes: &[u8]) -> Option<(usize, usize)> {
pub fn next(&mut self, bytes: &[u8]) -> Option<(usize, usize)> {
self.next_impl(bytes)
}
/// Like next, but returns a `Match` instead of a tuple.
#[inline(always)]
pub(crate) fn next_match(&mut self, bytes: &[u8]) -> Option<Match> {
self.next_impl(bytes).map(|(s, e)| Match::new(s, e))
}
#[inline(always)]
fn next_impl(&mut self, mut bytes: &[u8]) -> Option<(usize, usize)> {
bytes = &bytes[..self.end];
match memchr(self.line_term, &bytes[self.pos..]) {
match bytes[self.pos..].find_byte(self.line_term) {
None => {
if self.pos < bytes.len() {
let m = (self.pos, bytes.len());
@@ -95,11 +106,6 @@ impl LineStep {
}
}
}
/// Like next, but returns a `Match` instead of a tuple.
pub(crate) fn next_match(&mut self, bytes: &[u8]) -> Option<Match> {
self.next(bytes).map(|(s, e)| Match::new(s, e))
}
}
/// Count the number of occurrences of `line_term` in `bytes`.
@@ -109,9 +115,11 @@ pub fn count(bytes: &[u8], line_term: u8) -> u64 {
/// Given a line that possibly ends with a terminator, return that line without
/// the terminator.
#[inline(always)]
pub fn without_terminator(bytes: &[u8], line_term: LineTerminator) -> &[u8] {
let line_term = line_term.as_bytes();
if bytes.get(bytes.len().saturating_sub(line_term.len())..) == Some(line_term) {
let start = bytes.len().saturating_sub(line_term.len());
if bytes.get(start..) == Some(line_term) {
return &bytes[..bytes.len() - line_term.len()];
}
bytes
@@ -121,19 +129,22 @@ pub fn without_terminator(bytes: &[u8], line_term: LineTerminator) -> &[u8] {
/// of bytes.
///
/// Line terminators are considered part of the line they terminate.
#[inline(always)]
pub fn locate(
bytes: &[u8],
line_term: u8,
range: Match,
) -> Match {
let line_start = memrchr(line_term, &bytes[0..range.start()])
let line_start = bytes[..range.start()]
.rfind_byte(line_term)
.map_or(0, |i| i + 1);
let line_end =
if range.end() > line_start && bytes[range.end() - 1] == line_term {
range.end()
} else {
memchr(line_term, &bytes[range.end()..])
.map_or(bytes.len(), |i| range.end() + i + 1)
bytes[range.end()..]
.find_byte(line_term)
.map_or(bytes.len(), |i| range.end() + i + 1)
};
Match::new(line_start, line_end)
}
@@ -167,11 +178,11 @@ fn preceding_by_pos(
) -> usize {
if pos == 0 {
return 0;
} else if bytes[pos - 1] == b'\n' {
} else if bytes[pos - 1] == line_term {
pos -= 1;
}
loop {
match memrchr(line_term, &bytes[..pos]) {
match bytes[..pos].rfind_byte(line_term) {
None => {
return 0;
}

1
grep-searcher/src/macros.rs
View File

@@ -1,3 +1,4 @@
/// Like assert_eq, but nicer output for long strings.
#[cfg(test)]
#[macro_export]
macro_rules! assert_eq_printed {

58
grep-searcher/src/searcher/core.rs
View File

@@ -1,6 +1,6 @@
use std::cmp;
use memchr::memchr;
use bstr::ByteSlice;
use grep_matcher::{LineMatchKind, Matcher};
use lines::{self, LineStep};
@@ -90,6 +90,13 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
self.sink_matched(buf, range)
}
pub fn binary_data(
&mut self,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
self.sink.binary_data(&self.searcher, binary_byte_offset)
}
pub fn begin(&mut self) -> Result<bool, S::Error> {
self.sink.begin(&self.searcher)
}
@@ -141,19 +148,28 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
consumed
}
pub fn detect_binary(&mut self, buf: &[u8], range: &Range) -> bool {
pub fn detect_binary(
&mut self,
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary_byte_offset.is_some() {
return true;
return Ok(self.config.binary.quit_byte().is_some());
}
let binary_byte = match self.config.binary.0 {
BinaryDetection::Quit(b) => b,
_ => return false,
BinaryDetection::Convert(b) => b,
_ => return Ok(false),
};
if let Some(i) = memchr(binary_byte, &buf[*range]) {
self.binary_byte_offset = Some(range.start() + i);
true
if let Some(i) = buf[*range].find_byte(binary_byte) {
let offset = range.start() + i;
self.binary_byte_offset = Some(offset);
if !self.binary_data(offset as u64)? {
return Ok(true);
}
Ok(self.config.binary.quit_byte().is_some())
} else {
false
Ok(false)
}
}
@@ -290,11 +306,13 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
return Ok(false);
}
} else if let Some(line) = self.find_by_line_fast(buf)? {
if !self.after_context_by_line(buf, line.start())? {
return Ok(false);
}
if !self.before_context_by_line(buf, line.start())? {
return Ok(false);
if self.config.max_context() > 0 {
if !self.after_context_by_line(buf, line.start())? {
return Ok(false);
}
if !self.before_context_by_line(buf, line.start())? {
return Ok(false);
}
}
self.set_pos(line.end());
if !self.sink_matched(buf, &line)? {
@@ -311,6 +329,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
Ok(true)
}
#[inline(always)]
fn match_by_line_fast_invert(
&mut self,
buf: &[u8],
@@ -351,6 +370,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
Ok(true)
}
#[inline(always)]
fn find_by_line_fast(
&self,
buf: &[u8],
@@ -406,12 +426,13 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
Ok(None)
}
#[inline(always)]
fn sink_matched(
&mut self,
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
if !self.sink_break_context(range.start())? {
@@ -419,11 +440,12 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
}
self.count_lines(buf, range.start());
let offset = self.absolute_byte_offset + range.start() as u64;
let linebuf = &buf[*range];
let keepgoing = self.sink.matched(
&self.searcher,
&SinkMatch {
line_term: self.config.line_term,
bytes: &buf[*range],
bytes: linebuf,
absolute_byte_offset: offset,
line_number: self.line_number,
},
@@ -442,7 +464,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());
@@ -472,7 +494,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
) -> Result<bool, S::Error> {
assert!(self.after_context_left >= 1);
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());
@@ -501,7 +523,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
buf: &[u8],
range: &Range,
) -> Result<bool, S::Error> {
if self.binary && self.detect_binary(buf, range) {
if self.binary && self.detect_binary(buf, range)? {
return Ok(false);
}
self.count_lines(buf, range.start());

19
grep-searcher/src/searcher/glue.rs
View File

@@ -51,6 +51,7 @@ where M: Matcher,
fn fill(&mut self) -> Result<bool, S::Error> {
assert!(self.rdr.buffer()[self.core.pos()..].is_empty());
let already_binary = self.rdr.binary_byte_offset().is_some();
let old_buf_len = self.rdr.buffer().len();
let consumed = self.core.roll(self.rdr.buffer());
self.rdr.consume(consumed);
@@ -58,7 +59,14 @@ where M: Matcher,
Err(err) => return Err(S::Error::error_io(err)),
Ok(didread) => didread,
};
if !didread || self.rdr.binary_byte_offset().is_some() {
if !already_binary {
if let Some(offset) = self.rdr.binary_byte_offset() {
if !self.core.binary_data(offset)? {
return Ok(false);
}
}
}
if !didread || self.should_binary_quit() {
return Ok(false);
}
// If rolling the buffer didn't result in consuming anything and if
@@ -71,6 +79,11 @@ where M: Matcher,
}
Ok(true)
}
fn should_binary_quit(&self) -> bool {
self.rdr.binary_byte_offset().is_some()
&& self.config.binary.quit_byte().is_some()
}
}
#[derive(Debug)]
@@ -103,7 +116,7 @@ impl<'s, M: Matcher, S: Sink> SliceByLine<'s, M, S> {
DEFAULT_BUFFER_CAPACITY,
);
let binary_range = Range::new(0, binary_upto);
if !self.core.detect_binary(self.slice, &binary_range) {
if !self.core.detect_binary(self.slice, &binary_range)? {
while
!self.slice[self.core.pos()..].is_empty()
&& self.core.match_by_line(self.slice)?
@@ -155,7 +168,7 @@ impl<'s, M: Matcher, S: Sink> MultiLine<'s, M, S> {
DEFAULT_BUFFER_CAPACITY,
);
let binary_range = Range::new(0, binary_upto);
if !self.core.detect_binary(self.slice, &binary_range) {
if !self.core.detect_binary(self.slice, &binary_range)? {
let mut keepgoing = true;
while !self.slice[self.core.pos()..].is_empty() && keepgoing {
keepgoing = self.sink()?;

6
grep-searcher/src/searcher/mmap.rs
View File

@@ -76,9 +76,9 @@ impl MmapChoice {
return None;
}
// SAFETY: This is acceptable because the only way `MmapChoiceImpl` can
// be `Auto` is if the caller invoked the `auto` constructor. Thus,
// this is a propagation of the caller's assertion that using memory
// maps is safe.
// be `Auto` is if the caller invoked the `auto` constructor, which
// is itself not safe. Thus, this is a propagation of the caller's
// assertion that using memory maps is safe.
match unsafe { Mmap::map(file) } {
Ok(mmap) => Some(mmap),
Err(err) => {

144
grep-searcher/src/searcher/mod.rs
View File

@@ -75,25 +75,41 @@ impl BinaryDetection {
BinaryDetection(line_buffer::BinaryDetection::Quit(binary_byte))
}
// TODO(burntsushi): Figure out how to make binary conversion work. This
// permits implementing GNU grep's default behavior, which is to zap NUL
// bytes but still execute a search (if a match is detected, then GNU grep
// stops and reports that a match was found but doesn't print the matching
// line itself).
//
// This behavior is pretty simple to implement using the line buffer (and
// in fact, it is already implemented and tested), since there's a fixed
// size buffer that we can easily write to. The issue arises when searching
// a `&[u8]` (whether on the heap or via a memory map), since this isn't
// something we can easily write to.
/// The given byte is searched in all contents read by the line buffer. If
/// it occurs, then it is replaced by the line terminator. The line buffer
/// guarantees that this byte will never be observable by callers.
#[allow(dead_code)]
fn convert(binary_byte: u8) -> BinaryDetection {
/// Binary detection is performed by looking for the given byte, and
/// replacing it with the line terminator configured on the searcher.
/// (If the searcher is configured to use `CRLF` as the line terminator,
/// then this byte is replaced by just `LF`.)
///
/// When searching is performed using a fixed size buffer, then the
/// contents of that buffer are always searched for the presence of this
/// byte and replaced with the line terminator. In effect, the caller is
/// guaranteed to never observe this byte while searching.
///
/// When searching is performed with the entire contents mapped into
/// memory, then this setting has no effect and is ignored.
pub fn convert(binary_byte: u8) -> BinaryDetection {
BinaryDetection(line_buffer::BinaryDetection::Convert(binary_byte))
}
/// If this binary detection uses the "quit" strategy, then this returns
/// the byte that will cause a search to quit. In any other case, this
/// returns `None`.
pub fn quit_byte(&self) -> Option<u8> {
match self.0 {
line_buffer::BinaryDetection::Quit(b) => Some(b),
_ => None,
}
}
/// If this binary detection uses the "convert" strategy, then this returns
/// the byte that will be replaced by the line terminator. In any other
/// case, this returns `None`.
pub fn convert_byte(&self) -> Option<u8> {
match self.0 {
line_buffer::BinaryDetection::Convert(b) => Some(b),
_ => None,
}
}
}
/// An encoding to use when searching.
@@ -155,6 +171,8 @@ pub struct Config {
/// An encoding that, when present, causes the searcher to transcode all
/// input from the encoding to UTF-8.
encoding: Option<Encoding>,
/// Whether to do automatic transcoding based on a BOM or not.
bom_sniffing: bool,
}
impl Default for Config {
@@ -171,6 +189,7 @@ impl Default for Config {
binary: BinaryDetection::default(),
multi_line: false,
encoding: None,
bom_sniffing: true,
}
}
}
@@ -296,17 +315,22 @@ impl SearcherBuilder {
}
}
/// Builder a searcher with the given matcher.
/// Build a searcher with the given matcher.
pub fn build(&self) -> Searcher {
let mut config = self.config.clone();
if config.passthru {
config.before_context = 0;
config.after_context = 0;
}
let mut decode_builder = DecodeReaderBytesBuilder::new();
decode_builder
.encoding(self.config.encoding.as_ref().map(|e| e.0))
.utf8_passthru(true);
.utf8_passthru(true)
.strip_bom(self.config.bom_sniffing)
.bom_override(true)
.bom_sniffing(self.config.bom_sniffing);
Searcher {
config: config,
decode_builder: decode_builder,
@@ -318,7 +342,7 @@ impl SearcherBuilder {
/// Set the line terminator that is used by the searcher.
///
/// When building a searcher, if the matcher provided has a line terminator
/// When using a searcher, if the matcher provided has a line terminator
/// set, then it must be the same as this one. If they aren't, building
/// a searcher will return an error.
///
@@ -453,12 +477,25 @@ impl SearcherBuilder {
/// enabled, then the entire contents will be read on to the heap before
/// searching begins.
///
/// The default behavior is **never**. Generally speaking, command line
/// programs probably want to enable memory maps. The only reason to keep
/// memory maps disabled is if there are concerns using them. For example,
/// if your process is searching a file backed memory map at the same time
/// that file is truncated, then it's possible for the process to terminate
/// with a bus error.
/// The default behavior is **never**. Generally speaking, and perhaps
/// against conventional wisdom, memory maps don't necessarily enable
/// faster searching. For example, depending on the platform, using memory
/// maps while searching a large directory can actually be quite a bit
/// slower than using normal read calls because of the overhead of managing
/// the memory maps.
///
/// Memory maps can be faster in some cases however. On some platforms,
/// when searching a very large file that *is already in memory*, it can
/// be slightly faster to search it as a memory map instead of using
/// normal read calls.
///
/// Finally, memory maps have a somewhat complicated safety story in Rust.
/// If you aren't sure whether enabling memory maps is worth it, then just
/// don't bother with it.
///
/// **WARNING**: If your process is searching a file backed memory map
/// at the same time that file is truncated, then it's possible for the
/// process to terminate with a bus error.
pub fn memory_map(
&mut self,
strategy: MmapChoice,
@@ -486,16 +523,18 @@ impl SearcherBuilder {
/// Set the encoding used to read the source data before searching.
///
/// When an encoding is provided, then the source data is _unconditionally_
/// transcoded using the encoding. This will disable BOM sniffing. If the
/// transcoded using the encoding, unless a BOM is present. If a BOM is
/// present, then the encoding indicated by the BOM is used instead. If the
/// transcoding process encounters an error, then bytes are replaced with
/// the Unicode replacement codepoint.
///
/// When no encoding is specified (the default), then BOM sniffing is used
/// to determine whether the source data is UTF-8 or UTF-16, and
/// transcoding will be performed automatically. If no BOM could be found,
/// then the source data is searched _as if_ it were UTF-8. However, so
/// long as the source data is at least ASCII compatible, then it is
/// possible for a search to produce useful results.
/// When no encoding is specified (the default), then BOM sniffing is
/// used (if it's enabled, which it is, by default) to determine whether
/// the source data is UTF-8 or UTF-16, and transcoding will be performed
/// automatically. If no BOM could be found, then the source data is
/// searched _as if_ it were UTF-8. However, so long as the source data is
/// at least ASCII compatible, then it is possible for a search to produce
/// useful results.
pub fn encoding(
&mut self,
encoding: Option<Encoding>,
@@ -503,6 +542,23 @@ impl SearcherBuilder {
self.config.encoding = encoding;
self
}
/// Enable automatic transcoding based on BOM sniffing.
///
/// When this is enabled and an explicit encoding is not set, then this
/// searcher will try to detect the encoding of the bytes being searched
/// by sniffing its byte-order mark (BOM). In particular, when this is
/// enabled, UTF-16 encoded files will be searched seamlessly.
///
/// When this is disabled and if an explicit encoding is not set, then
/// the bytes from the source stream will be passed through unchanged,
/// including its BOM, if one is present.
///
/// This is enabled by default.
pub fn bom_sniffing(&mut self, yes: bool) -> &mut SearcherBuilder {
self.config.bom_sniffing = yes;
self
}
}
/// A searcher executes searches over a haystack and writes results to a caller
@@ -699,6 +755,12 @@ impl Searcher {
}
}
/// Set the binary detection method used on this searcher.
pub fn set_binary_detection(&mut self, detection: BinaryDetection) {
self.config.binary = detection.clone();
self.line_buffer.borrow_mut().set_binary_detection(detection.0);
}
/// Check that the searcher's configuration and the matcher are consistent
/// with each other.
fn check_config<M: Matcher>(&self, matcher: M) -> Result<(), ConfigError> {
@@ -722,7 +784,8 @@ impl Searcher {
/// Returns true if and only if the given slice needs to be transcoded.
fn slice_needs_transcoding(&self, slice: &[u8]) -> bool {
self.config.encoding.is_some() || slice_has_utf16_bom(slice)
self.config.encoding.is_some()
|| (self.config.bom_sniffing && slice_has_utf16_bom(slice))
}
}
@@ -732,25 +795,35 @@ impl Searcher {
/// where the output may be tailored based on how the searcher is configured.
impl Searcher {
/// Returns the line terminator used by this searcher.
#[inline]
pub fn line_terminator(&self) -> LineTerminator {
self.config.line_term
}
/// Returns the type of binary detection configured on this searcher.
#[inline]
pub fn binary_detection(&self) -> &BinaryDetection {
&self.config.binary
}
/// Returns true if and only if this searcher is configured to invert its
/// search results. That is, matching lines are lines that do **not** match
/// the searcher's matcher.
#[inline]
pub fn invert_match(&self) -> bool {
self.config.invert_match
}
/// Returns true if and only if this searcher is configured to count line
/// numbers.
#[inline]
pub fn line_number(&self) -> bool {
self.config.line_number
}
/// Returns true if and only if this searcher is configured to perform
/// multi line search.
#[inline]
pub fn multi_line(&self) -> bool {
self.config.multi_line
}
@@ -785,17 +858,20 @@ impl Searcher {
/// Returns the number of "after" context lines to report. When context
/// reporting is not enabled, this returns `0`.
#[inline]
pub fn after_context(&self) -> usize {
self.config.after_context
}
/// Returns the number of "before" context lines to report. When context
/// reporting is not enabled, this returns `0`.
#[inline]
pub fn before_context(&self) -> usize {
self.config.before_context
}
/// Returns true if and only if the searcher has "passthru" mode enabled.
#[inline]
pub fn passthru(&self) -> bool {
self.config.passthru
}

96
grep-searcher/src/sink.rs
View File

@@ -1,3 +1,4 @@
use std::error;
use std::fmt;
use std::io;
@@ -49,9 +50,9 @@ impl SinkError for io::Error {
/// A `Box<std::error::Error>` can be used as an error for `Sink`
/// implementations out of the box.
impl SinkError for Box<::std::error::Error> {
fn error_message<T: fmt::Display>(message: T) -> Box<::std::error::Error> {
Box::<::std::error::Error>::from(message.to_string())
impl SinkError for Box<dyn error::Error> {
fn error_message<T: fmt::Display>(message: T) -> Box<dyn error::Error> {
Box::<dyn error::Error>::from(message.to_string())
}
}
@@ -69,7 +70,7 @@ impl SinkError for Box<::std::error::Error> {
/// an implementation of this trait to a searcher, and the searcher is then
/// responsible for calling the methods on this trait.
///
/// This trait defines five behaviors:
/// This trait defines several behaviors:
///
/// * What to do when a match is found. Callers must provide this.
/// * What to do when an error occurs. Callers must provide this via the
@@ -167,6 +168,28 @@ pub trait Sink {
Ok(true)
}
/// This method is called whenever binary detection is enabled and binary
/// data is found. If binary data is found, then this is called at least
/// once for the first occurrence with the absolute byte offset at which
/// the binary data begins.
///
/// If this returns `true`, then searching continues. If this returns
/// `false`, then searching is stopped immediately and `finish` is called.
///
/// If this returns an error, then searching is stopped immediately,
/// `finish` is not called and the error is bubbled back up to the caller
/// of the searcher.
///
/// By default, it does nothing and returns `true`.
#[inline]
fn binary_data(
&mut self,
_searcher: &Searcher,
_binary_byte_offset: u64,
) -> Result<bool, Self::Error> {
Ok(true)
}
/// This method is called when a search has begun, before any search is
/// executed. By default, this does nothing.
///
@@ -228,6 +251,71 @@ impl<'a, S: Sink> Sink for &'a mut S {
(**self).context_break(searcher)
}
#[inline]
fn binary_data(
&mut self,
searcher: &Searcher,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
(**self).binary_data(searcher, binary_byte_offset)
}
#[inline]
fn begin(
&mut self,
searcher: &Searcher,
) -> Result<bool, S::Error> {
(**self).begin(searcher)
}
#[inline]
fn finish(
&mut self,
searcher: &Searcher,
sink_finish: &SinkFinish,
) -> Result<(), S::Error> {
(**self).finish(searcher, sink_finish)
}
}
impl<S: Sink + ?Sized> Sink for Box<S> {
type Error = S::Error;
#[inline]
fn matched(
&mut self,
searcher: &Searcher,
mat: &SinkMatch,
) -> Result<bool, S::Error> {
(**self).matched(searcher, mat)
}
#[inline]
fn context(
&mut self,
searcher: &Searcher,
context: &SinkContext,
) -> Result<bool, S::Error> {
(**self).context(searcher, context)
}
#[inline]
fn context_break(
&mut self,
searcher: &Searcher,
) -> Result<bool, S::Error> {
(**self).context_break(searcher)
}
#[inline]
fn binary_data(
&mut self,
searcher: &Searcher,
binary_byte_offset: u64,
) -> Result<bool, S::Error> {
(**self).binary_data(searcher, binary_byte_offset)
}
#[inline]
fn begin(
&mut self,

5
grep-searcher/src/testutil.rs
View File

@@ -1,10 +1,10 @@
use std::io::{self, Write};
use std::str;
use bstr::ByteSlice;
use grep_matcher::{
LineMatchKind, LineTerminator, Match, Matcher, NoCaptures, NoError,
};
use memchr::memchr;
use regex::bytes::{Regex, RegexBuilder};
use searcher::{BinaryDetection, Searcher, SearcherBuilder};
@@ -94,7 +94,8 @@ impl Matcher for RegexMatcher {
}
// Make it interesting and return the last byte in the current
// line.
let i = memchr(self.line_term.unwrap().as_byte(), haystack)
let i = haystack
.find_byte(self.line_term.unwrap().as_byte())
.map(|i| i)
.unwrap_or(haystack.len() - 1);
Ok(Some(LineMatchKind::Candidate(i)))

21
grep/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "grep"
version = "0.2.0" #:version
version = "0.2.4" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Fast line oriented regex searching as a library.
@@ -13,11 +13,20 @@ keywords = ["regex", "grep", "egrep", "search", "pattern"]
license = "Unlicense/MIT"
[dependencies]
grep-matcher = { version = "0.0.1", path = "../grep-matcher" }
grep-printer = { version = "0.0.1", path = "../grep-printer" }
grep-regex = { version = "0.0.1", path = "../grep-regex" }
grep-searcher = { version = "0.0.1", path = "../grep-searcher" }
grep-cli = { version = "0.1.2", path = "../grep-cli" }
grep-matcher = { version = "0.1.2", path = "../grep-matcher" }
grep-pcre2 = { version = "0.1.3", path = "../grep-pcre2", optional = true }
grep-printer = { version = "0.1.2", path = "../grep-printer" }
grep-regex = { version = "0.1.3", path = "../grep-regex" }
grep-searcher = { version = "0.1.4", path = "../grep-searcher" }
[dev-dependencies]
termcolor = "1.0.4"
walkdir = "2.2.7"
[features]
avx-accel = ["grep-searcher/avx-accel"]
simd-accel = ["grep-searcher/simd-accel"]
pcre2 = ["grep-pcre2"]
# This feature is DEPRECATED. Runtime dispatch is used for SIMD now.
avx-accel = []

41
grep/README.md
View File

@@ -1,4 +1,41 @@
grep
----
This is a *library* that provides grep-style line-by-line regex searching (with
comparable performance to `grep` itself).
ripgrep, as a library.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/grep.svg)](https://crates.io/crates/grep)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[https://docs.rs/grep](https://docs.rs/grep)
NOTE: This crate isn't ready for wide use yet. Ambitious individuals can
probably piece together the parts, but there is no high level documentation
describing how all of the pieces fit together.
### Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
grep = "0.2"
```
and this to your crate root:
```rust
extern crate grep;
```
### Features
This crate provides a `pcre2` feature (disabled by default) which, when
enabled, re-exports the `grep-pcre2` crate as an alternative `Matcher`
implementation to the standard `grep-regex` implementation.

74
grep/examples/simplegrep.rs Normal file
View File

@@ -0,0 +1,74 @@
extern crate grep;
extern crate termcolor;
extern crate walkdir;
use std::env;
use std::error::Error;
use std::ffi::OsString;
use std::process;
use grep::cli;
use grep::printer::{ColorSpecs, StandardBuilder};
use grep::regex::RegexMatcher;
use grep::searcher::{BinaryDetection, SearcherBuilder};
use termcolor::ColorChoice;
use walkdir::WalkDir;
fn main() {
if let Err(err) = try_main() {
eprintln!("{}", err);
process::exit(1);
}
}
fn try_main() -> Result<(), Box<dyn Error>> {
let mut args: Vec<OsString> = env::args_os().collect();
if args.len() < 2 {
return Err("Usage: simplegrep <pattern> [<path> ...]".into());
}
if args.len() == 2 {
args.push(OsString::from("./"));
}
search(cli::pattern_from_os(&args[1])?, &args[2..])
}
fn search(pattern: &str, paths: &[OsString]) -> Result<(), Box<dyn Error>> {
let matcher = RegexMatcher::new_line_matcher(&pattern)?;
let mut searcher = SearcherBuilder::new()
.binary_detection(BinaryDetection::quit(b'\x00'))
.line_number(false)
.build();
let mut printer = StandardBuilder::new()
.color_specs(ColorSpecs::default_with_color())
.build(cli::stdout(
if cli::is_tty_stdout() {
ColorChoice::Auto
} else {
ColorChoice::Never
}
));
for path in paths {
for result in WalkDir::new(path) {
let dent = match result {
Ok(dent) => dent,
Err(err) => {
eprintln!("{}", err);
continue;
}
};
if !dent.file_type().is_file() {
continue;
}
let result = searcher.search_path(
&matcher,
dent.path(),
printer.sink_with_path(&matcher, dent.path()),
);
if let Err(err) = result {
eprintln!("{}: {}", dent.path().display(), err);
}
}
}
Ok(())
}

15
grep/src/lib.rs
View File

@@ -1,10 +1,23 @@
/*!
TODO.
ripgrep, as a library.
This library is intended to provide a high level facade to the crates that
make up ripgrep's core searching routines. However, there is no high level
documentation available yet guiding users on how to fit all of the pieces
together.
Every public API item in the constituent crates is documented, but examples
are sparse.
A cookbook and a guide are planned.
*/
#![deny(missing_docs)]
pub extern crate grep_cli as cli;
pub extern crate grep_matcher as matcher;
#[cfg(feature = "pcre2")]
pub extern crate grep_pcre2 as pcre2;
pub extern crate grep_printer as printer;
pub extern crate grep_regex as regex;
pub extern crate grep_searcher as searcher;

28
ignore/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package]
name = "ignore"
version = "0.4.3" #:version
version = "0.4.10" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
A fast library for efficiently matching ignore files such as `.gitignore`
@@ -18,22 +18,18 @@ name = "ignore"
bench = false
[dependencies]
crossbeam = "0.3"
globset = { version = "0.4.0", path = "../globset" }
lazy_static = "1"
log = "0.4"
memchr = "2"
regex = "1"
same-file = "1"
thread_local = "0.3.2"
walkdir = "2"
crossbeam-channel = "0.3.6"
globset = { version = "0.4.3", path = "../globset" }
lazy_static = "1.1"
log = "0.4.5"
memchr = "2.1"
regex = "1.1"
same-file = "1.0.4"
thread_local = "0.3.6"
walkdir = "2.2.7"
[target.'cfg(windows)'.dependencies.winapi]
version = "0.3"
features = ["std", "winnt"]
[dev-dependencies]
tempdir = "0.3.5"
[target.'cfg(windows)'.dependencies.winapi-util]
version = "0.1.2"
[features]
simd-accel = ["globset/simd-accel"]

2
ignore/README.md
View File

@@ -4,7 +4,7 @@ The ignore crate provides a fast recursive directory iterator that respects
various filters such as globs, file types and `.gitignore` files. This crate
also provides lower level direct access to gitignore and file type matchers.
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.png)](https://travis-ci.org/BurntSushi/ripgrep)
[![Linux build status](https://api.travis-ci.org/BurntSushi/ripgrep.svg)](https://travis-ci.org/BurntSushi/ripgrep)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/ripgrep?svg=true)](https://ci.appveyor.com/project/BurntSushi/ripgrep)
[![](https://img.shields.io/crates/v/ignore.svg)](https://crates.io/crates/ignore)

24
ignore/examples/walk.rs
View File

@@ -1,17 +1,12 @@
#![allow(dead_code, unused_imports, unused_mut, unused_variables)]
extern crate crossbeam;
extern crate crossbeam_channel as channel;
extern crate ignore;
extern crate walkdir;
use std::env;
use std::io::{self, Write};
use std::path::Path;
use std::sync::Arc;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::thread;
use crossbeam::sync::MsQueue;
use ignore::WalkBuilder;
use walkdir::WalkDir;
@@ -19,7 +14,7 @@ fn main() {
let mut path = env::args().nth(1).unwrap();
let mut parallel = false;
let mut simple = false;
let queue: Arc<MsQueue<Option<DirEntry>>> = Arc::new(MsQueue::new());
let (tx, rx) = channel::bounded::<DirEntry>(100);
if path == "parallel" {
path = env::args().nth(2).unwrap();
parallel = true;
@@ -28,10 +23,9 @@ fn main() {
simple = true;
}
let stdout_queue = queue.clone();
let stdout_thread = thread::spawn(move || {
let mut stdout = io::BufWriter::new(io::stdout());
while let Some(dent) = stdout_queue.pop() {
for dent in rx {
write_path(&mut stdout, dent.path());
}
});
@@ -39,28 +33,26 @@ fn main() {
if parallel {
let walker = WalkBuilder::new(path).threads(6).build_parallel();
walker.run(|| {
let queue = queue.clone();
let tx = tx.clone();
Box::new(move |result| {
use ignore::WalkState::*;
queue.push(Some(DirEntry::Y(result.unwrap())));
tx.send(DirEntry::Y(result.unwrap())).unwrap();
Continue
})
});
} else if simple {
let mut stdout = io::BufWriter::new(io::stdout());
let walker = WalkDir::new(path);
for result in walker {
queue.push(Some(DirEntry::X(result.unwrap())));
tx.send(DirEntry::X(result.unwrap())).unwrap();
}
} else {
let mut stdout = io::BufWriter::new(io::stdout());
let walker = WalkBuilder::new(path).build();
for result in walker {
queue.push(Some(DirEntry::Y(result.unwrap())));
tx.send(DirEntry::Y(result.unwrap())).unwrap();
}
}
queue.push(None);
drop(tx);
stdout_thread.join().unwrap();
}

324
ignore/src/dir.rs
View File

@@ -14,14 +14,15 @@
// well.
use std::collections::HashMap;
use std::ffi::{OsString, OsStr};
use std::ffi::{OsStr, OsString};
use std::path::{Path, PathBuf};
use std::sync::{Arc, RwLock};
use gitignore::{self, Gitignore, GitignoreBuilder};
use pathutil::{is_hidden, strip_prefix};
use overrides::{self, Override};
use pathutil::{is_hidden, strip_prefix};
use types::{self, Types};
use walk::DirEntry;
use {Error, Match, PartialErrorBuilder};
/// IgnoreMatch represents information about where a match came from when using
@@ -73,6 +74,8 @@ struct IgnoreOptions {
git_ignore: bool,
/// Whether to read .git/info/exclude files.
git_exclude: bool,
/// Whether to ignore files case insensitively
ignore_case_insensitive: bool,
}
/// Ignore is a matcher useful for recursively walking one or more directories.
@@ -149,10 +152,7 @@ impl Ignore {
///
/// Note that this can only be called on an `Ignore` matcher with no
/// parents (i.e., `is_root` returns `true`). This will panic otherwise.
pub fn add_parents<P: AsRef<Path>>(
&self,
path: P,
) -> (Ignore, Option<Error>) {
pub fn add_parents<P: AsRef<Path>>(&self, path: P) -> (Ignore, Option<Error>) {
if !self.0.opts.parents
&& !self.0.opts.git_ignore
&& !self.0.opts.git_exclude
@@ -194,7 +194,11 @@ impl Ignore {
errs.maybe_push(err);
igtmp.is_absolute_parent = true;
igtmp.absolute_base = Some(absolute_base.clone());
igtmp.has_git = parent.join(".git").exists();
igtmp.has_git = if self.0.opts.git_ignore {
parent.join(".git").exists()
} else {
false
};
ig = Ignore(Arc::new(igtmp));
compiled.insert(parent.as_os_str().to_os_string(), ig.clone());
}
@@ -209,10 +213,7 @@ impl Ignore {
/// returned if it exists.
///
/// Note that all I/O errors are completely ignored.
pub fn add_child<P: AsRef<Path>>(
&self,
dir: P,
) -> (Ignore, Option<Error>) {
pub fn add_child<P: AsRef<Path>>(&self, dir: P) -> (Ignore, Option<Error>) {
let (ig, err) = self.add_child_path(dir.as_ref());
(Ignore(Arc::new(ig)), err)
}
@@ -220,39 +221,49 @@ impl Ignore {
/// Like add_child, but takes a full path and returns an IgnoreInner.
fn add_child_path(&self, dir: &Path) -> (IgnoreInner, Option<Error>) {
let mut errs = PartialErrorBuilder::default();
let custom_ig_matcher =
if self.0.custom_ignore_filenames.is_empty() {
Gitignore::empty()
} else {
let (m, err) =
create_gitignore(&dir, &self.0.custom_ignore_filenames);
errs.maybe_push(err);
m
};
let ig_matcher =
if !self.0.opts.ignore {
Gitignore::empty()
} else {
let (m, err) = create_gitignore(&dir, &[".ignore"]);
errs.maybe_push(err);
m
};
let gi_matcher =
if !self.0.opts.git_ignore {
Gitignore::empty()
} else {
let (m, err) = create_gitignore(&dir, &[".gitignore"]);
errs.maybe_push(err);
m
};
let gi_exclude_matcher =
if !self.0.opts.git_exclude {
Gitignore::empty()
} else {
let (m, err) = create_gitignore(&dir, &[".git/info/exclude"]);
errs.maybe_push(err);
m
};
let custom_ig_matcher = if self.0.custom_ignore_filenames.is_empty() {
Gitignore::empty()
} else {
let (m, err) = create_gitignore(
&dir,
&self.0.custom_ignore_filenames,
self.0.opts.ignore_case_insensitive,
);
errs.maybe_push(err);
m
};
let ig_matcher = if !self.0.opts.ignore {
Gitignore::empty()
} else {
let (m, err) =
create_gitignore(&dir, &[".ignore"], self.0.opts.ignore_case_insensitive);
errs.maybe_push(err);
m
};
let gi_matcher = if !self.0.opts.git_ignore {
Gitignore::empty()
} else {
let (m, err) =
create_gitignore(&dir, &[".gitignore"], self.0.opts.ignore_case_insensitive);
errs.maybe_push(err);
m
};
let gi_exclude_matcher = if !self.0.opts.git_exclude {
Gitignore::empty()
} else {
let (m, err) = create_gitignore(
&dir,
&[".git/info/exclude"],
self.0.opts.ignore_case_insensitive,
);
errs.maybe_push(err);
m
};
let has_git = if self.0.opts.git_ignore {
dir.join(".git").exists()
} else {
false
};
let ig = IgnoreInner {
compiled: self.0.compiled.clone(),
dir: dir.to_path_buf(),
@@ -268,7 +279,7 @@ impl Ignore {
git_global_matcher: self.0.git_global_matcher.clone(),
git_ignore_matcher: gi_matcher,
git_exclude_matcher: gi_exclude_matcher,
has_git: dir.join(".git").exists(),
has_git: has_git,
opts: self.0.opts,
};
(ig, errs.into_error_option())
@@ -280,20 +291,28 @@ impl Ignore {
let has_custom_ignore_files = !self.0.custom_ignore_filenames.is_empty();
let has_explicit_ignores = !self.0.explicit_ignores.is_empty();
opts.ignore || opts.git_global || opts.git_ignore
|| opts.git_exclude || has_custom_ignore_files
|| has_explicit_ignores
opts.ignore
|| opts.git_global
|| opts.git_ignore
|| opts.git_exclude
|| has_custom_ignore_files
|| has_explicit_ignores
}
/// Like `matched`, but works with a directory entry instead.
pub fn matched_dir_entry<'a>(&'a self, dent: &DirEntry) -> Match<IgnoreMatch<'a>> {
let m = self.matched(dent.path(), dent.is_dir());
if m.is_none() && self.0.opts.hidden && is_hidden(dent) {
return Match::Ignore(IgnoreMatch::hidden());
}
m
}
/// Returns a match indicating whether the given file path should be
/// ignored or not.
///
/// The match contains information about its origin.
pub fn matched<'a, P: AsRef<Path>>(
&'a self,
path: P,
is_dir: bool,
) -> Match<IgnoreMatch<'a>> {
fn matched<'a, P: AsRef<Path>>(&'a self, path: P, is_dir: bool) -> Match<IgnoreMatch<'a>> {
// We need to be careful with our path. If it has a leading ./, then
// strip it because it causes nothing but trouble.
let mut path = path.as_ref();
@@ -305,9 +324,11 @@ impl Ignore {
// return that result immediately. Overrides have the highest
// precedence.
if !self.0.overrides.is_empty() {
let mat =
self.0.overrides.matched(path, is_dir)
.map(IgnoreMatch::overrides);
let mat = self
.0
.overrides
.matched(path, is_dir)
.map(IgnoreMatch::overrides);
if !mat.is_none() {
return mat;
}
@@ -322,77 +343,82 @@ impl Ignore {
}
}
if !self.0.types.is_empty() {
let mat =
self.0.types.matched(path, is_dir).map(IgnoreMatch::types);
let mat = self.0.types.matched(path, is_dir).map(IgnoreMatch::types);
if mat.is_ignore() {
return mat;
} else if mat.is_whitelist() {
whitelisted = mat;
}
}
if whitelisted.is_none() && self.0.opts.hidden && is_hidden(path) {
return Match::Ignore(IgnoreMatch::hidden());
}
whitelisted
}
/// Performs matching only on the ignore files for this directory and
/// all parent directories.
fn matched_ignore<'a>(
&'a self,
path: &Path,
is_dir: bool,
) -> Match<IgnoreMatch<'a>> {
let (mut m_custom_ignore, mut m_ignore, mut m_gi, mut m_gi_exclude, mut m_explicit) =
(Match::None, Match::None, Match::None, Match::None, Match::None);
fn matched_ignore<'a>(&'a self, path: &Path, is_dir: bool) -> Match<IgnoreMatch<'a>> {
let (mut m_custom_ignore, mut m_ignore, mut m_gi, mut m_gi_exclude, mut m_explicit) = (
Match::None,
Match::None,
Match::None,
Match::None,
Match::None,
);
let any_git = self.parents().any(|ig| ig.0.has_git);
let mut saw_git = false;
for ig in self.parents().take_while(|ig| !ig.0.is_absolute_parent) {
if m_custom_ignore.is_none() {
m_custom_ignore =
ig.0.custom_ignore_matcher.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.custom_ignore_matcher
.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
}
if m_ignore.is_none() {
m_ignore =
ig.0.ignore_matcher.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.ignore_matcher
.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
}
if any_git && !saw_git && m_gi.is_none() {
m_gi =
ig.0.git_ignore_matcher.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.git_ignore_matcher
.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
}
if any_git && !saw_git && m_gi_exclude.is_none() {
m_gi_exclude =
ig.0.git_exclude_matcher.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.git_exclude_matcher
.matched(path, is_dir)
.map(IgnoreMatch::gitignore);
}
saw_git = saw_git || ig.0.has_git;
}
if self.0.opts.parents {
if let Some(abs_parent_path) = self.absolute_base() {
let path = abs_parent_path.join(path);
for ig in self.parents().skip_while(|ig|!ig.0.is_absolute_parent) {
for ig in self.parents().skip_while(|ig| !ig.0.is_absolute_parent) {
if m_custom_ignore.is_none() {
m_custom_ignore =
ig.0.custom_ignore_matcher.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.custom_ignore_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
}
if m_ignore.is_none() {
m_ignore =
ig.0.ignore_matcher.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.ignore_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
}
if any_git && !saw_git && m_gi.is_none() {
m_gi =
ig.0.git_ignore_matcher.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.git_ignore_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
}
if any_git && !saw_git && m_gi_exclude.is_none() {
m_gi_exclude =
ig.0.git_exclude_matcher.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
ig.0.git_exclude_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore);
}
saw_git = saw_git || ig.0.has_git;
}
@@ -404,16 +430,21 @@ impl Ignore {
}
m_explicit = gi.matched(&path, is_dir).map(IgnoreMatch::gitignore);
}
let m_global =
if any_git {
self.0.git_global_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore)
} else {
Match::None
};
let m_global = if any_git {
self.0
.git_global_matcher
.matched(&path, is_dir)
.map(IgnoreMatch::gitignore)
} else {
Match::None
};
m_custom_ignore.or(m_ignore).or(m_gi).or(m_gi_exclude).or(m_global).or(m_explicit)
m_custom_ignore
.or(m_ignore)
.or(m_gi)
.or(m_gi_exclude)
.or(m_global)
.or(m_explicit)
}
/// Returns an iterator over parent ignore matchers, including this one.
@@ -483,6 +514,7 @@ impl IgnoreBuilder {
git_global: true,
git_ignore: true,
git_exclude: true,
ignore_case_insensitive: false,
},
}
}
@@ -492,16 +524,19 @@ impl IgnoreBuilder {
/// The matcher returned won't match anything until ignore rules from
/// directories are added to it.
pub fn build(&self) -> Ignore {
let git_global_matcher =
if !self.opts.git_global {
Gitignore::empty()
} else {
let (gi, err) = Gitignore::global();
if let Some(err) = err {
debug!("{}", err);
}
gi
};
let git_global_matcher = if !self.opts.git_global {
Gitignore::empty()
} else {
let mut builder = GitignoreBuilder::new("");
builder
.case_insensitive(self.opts.ignore_case_insensitive)
.unwrap();
let (gi, err) = builder.build_global();
if let Some(err) = err {
debug!("{}", err);
}
gi
};
Ignore(Arc::new(IgnoreInner {
compiled: Arc::new(RwLock::new(HashMap::new())),
@@ -557,9 +592,10 @@ impl IgnoreBuilder {
/// later names.
pub fn add_custom_ignore_filename<S: AsRef<OsStr>>(
&mut self,
file_name: S
file_name: S,
) -> &mut IgnoreBuilder {
self.custom_ignore_filenames.push(file_name.as_ref().to_os_string());
self.custom_ignore_filenames
.push(file_name.as_ref().to_os_string());
self
}
@@ -627,6 +663,14 @@ impl IgnoreBuilder {
self.opts.git_exclude = yes;
self
}
/// Process ignore files case insensitively
///
/// This is disabled by default.
pub fn ignore_case_insensitive(&mut self, yes: bool) -> &mut IgnoreBuilder {
self.opts.ignore_case_insensitive = yes;
self
}
}
/// Creates a new gitignore matcher for the directory given.
@@ -638,9 +682,11 @@ impl IgnoreBuilder {
pub fn create_gitignore<T: AsRef<OsStr>>(
dir: &Path,
names: &[T],
case_insensitive: bool,
) -> (Gitignore, Option<Error>) {
let mut builder = GitignoreBuilder::new(dir);
let mut errs = PartialErrorBuilder::default();
builder.case_insensitive(case_insensitive).unwrap();
for name in names {
let gipath = dir.join(name.as_ref());
errs.maybe_push_ignore_io(builder.add(gipath));
@@ -661,10 +707,9 @@ mod tests {
use std::io::Write;
use std::path::Path;
use tempdir::TempDir;
use dir::IgnoreBuilder;
use gitignore::Gitignore;
use tests::TempDir;
use Error;
fn wfile<P: AsRef<Path>>(path: P, contents: &str) {
@@ -683,15 +728,21 @@ mod tests {
}
}
fn tmpdir() -> TempDir {
TempDir::new().unwrap()
}
#[test]
fn explicit_ignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
wfile(td.path().join("not-an-ignore"), "foo\n!bar");
let (gi, err) = Gitignore::new(td.path().join("not-an-ignore"));
assert!(err.is_none());
let (ig, err) = IgnoreBuilder::new()
.add_ignore(gi).build().add_child(td.path());
.add_ignore(gi)
.build()
.add_child(td.path());
assert!(err.is_none());
assert!(ig.matched("foo", false).is_ignore());
assert!(ig.matched("bar", false).is_whitelist());
@@ -700,7 +751,7 @@ mod tests {
#[test]
fn git_exclude() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git/info"));
wfile(td.path().join(".git/info/exclude"), "foo\n!bar");
@@ -713,7 +764,7 @@ mod tests {
#[test]
fn gitignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git"));
wfile(td.path().join(".gitignore"), "foo\n!bar");
@@ -726,7 +777,7 @@ mod tests {
#[test]
fn gitignore_no_git() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
wfile(td.path().join(".gitignore"), "foo\n!bar");
let (ig, err) = IgnoreBuilder::new().build().add_child(td.path());
@@ -738,7 +789,7 @@ mod tests {
#[test]
fn ignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
wfile(td.path().join(".ignore"), "foo\n!bar");
let (ig, err) = IgnoreBuilder::new().build().add_child(td.path());
@@ -750,13 +801,14 @@ mod tests {
#[test]
fn custom_ignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
let custom_ignore = ".customignore";
wfile(td.path().join(custom_ignore), "foo\n!bar");
let (ig, err) = IgnoreBuilder::new()
.add_custom_ignore_filename(custom_ignore)
.build().add_child(td.path());
.build()
.add_child(td.path());
assert!(err.is_none());
assert!(ig.matched("foo", false).is_ignore());
assert!(ig.matched("bar", false).is_whitelist());
@@ -766,14 +818,15 @@ mod tests {
// Tests that a custom ignore file will override an .ignore.
#[test]
fn custom_ignore_over_ignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
let custom_ignore = ".customignore";
wfile(td.path().join(".ignore"), "foo");
wfile(td.path().join(custom_ignore), "!foo");
let (ig, err) = IgnoreBuilder::new()
.add_custom_ignore_filename(custom_ignore)
.build().add_child(td.path());
.build()
.add_child(td.path());
assert!(err.is_none());
assert!(ig.matched("foo", false).is_whitelist());
}
@@ -781,7 +834,7 @@ mod tests {
// Tests that earlier custom ignore files have lower precedence than later.
#[test]
fn custom_ignore_precedence() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
let custom_ignore1 = ".customignore1";
let custom_ignore2 = ".customignore2";
wfile(td.path().join(custom_ignore1), "foo");
@@ -790,7 +843,8 @@ mod tests {
let (ig, err) = IgnoreBuilder::new()
.add_custom_ignore_filename(custom_ignore1)
.add_custom_ignore_filename(custom_ignore2)
.build().add_child(td.path());
.build()
.add_child(td.path());
assert!(err.is_none());
assert!(ig.matched("foo", false).is_whitelist());
}
@@ -798,7 +852,7 @@ mod tests {
// Tests that an .ignore will override a .gitignore.
#[test]
fn ignore_over_gitignore() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
wfile(td.path().join(".gitignore"), "foo");
wfile(td.path().join(".ignore"), "!foo");
@@ -810,7 +864,7 @@ mod tests {
// Tests that exclude has lower precedent than both .ignore and .gitignore.
#[test]
fn exclude_lowest() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
wfile(td.path().join(".gitignore"), "!foo");
wfile(td.path().join(".ignore"), "!bar");
mkdirp(td.path().join(".git/info"));
@@ -825,8 +879,8 @@ mod tests {
#[test]
fn errored() {
let td = TempDir::new("ignore-test-").unwrap();
wfile(td.path().join(".gitignore"), "f**oo");
let td = tmpdir();
wfile(td.path().join(".gitignore"), "{foo");
let (_, err) = IgnoreBuilder::new().build().add_child(td.path());
assert!(err.is_some());
@@ -834,9 +888,9 @@ mod tests {
#[test]
fn errored_both() {
let td = TempDir::new("ignore-test-").unwrap();
wfile(td.path().join(".gitignore"), "f**oo");
wfile(td.path().join(".ignore"), "fo**o");
let td = tmpdir();
wfile(td.path().join(".gitignore"), "{foo");
wfile(td.path().join(".ignore"), "{bar");
let (_, err) = IgnoreBuilder::new().build().add_child(td.path());
assert_eq!(2, partial(err.expect("an error")).len());
@@ -844,9 +898,9 @@ mod tests {
#[test]
fn errored_partial() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git"));
wfile(td.path().join(".gitignore"), "f**oo\nbar");
wfile(td.path().join(".gitignore"), "{foo\nbar");
let (ig, err) = IgnoreBuilder::new().build().add_child(td.path());
assert!(err.is_some());
@@ -855,8 +909,8 @@ mod tests {
#[test]
fn errored_partial_and_ignore() {
let td = TempDir::new("ignore-test-").unwrap();
wfile(td.path().join(".gitignore"), "f**oo\nbar");
let td = tmpdir();
wfile(td.path().join(".gitignore"), "{foo\nbar");
wfile(td.path().join(".ignore"), "!bar");
let (ig, err) = IgnoreBuilder::new().build().add_child(td.path());
@@ -866,7 +920,7 @@ mod tests {
#[test]
fn not_present_empty() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
let (_, err) = IgnoreBuilder::new().build().add_child(td.path());
assert!(err.is_none());
@@ -876,7 +930,7 @@ mod tests {
fn stops_at_git_dir() {
// This tests that .gitignore files beyond a .git barrier aren't
// matched, but .ignore files are.
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git"));
mkdirp(td.path().join("foo/.git"));
wfile(td.path().join(".gitignore"), "foo");
@@ -897,7 +951,7 @@ mod tests {
#[test]
fn absolute_parent() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git"));
mkdirp(td.path().join("foo"));
wfile(td.path().join(".gitignore"), "bar");
@@ -920,7 +974,7 @@ mod tests {
#[test]
fn absolute_parent_anchored() {
let td = TempDir::new("ignore-test-").unwrap();
let td = tmpdir();
mkdirp(td.path().join(".git"));
mkdirp(td.path().join("src/llvm"));
wfile(td.path().join(".gitignore"), "/llvm/\nfoo");

79
ignore/src/gitignore.rs
View File

@@ -69,8 +69,7 @@ impl Glob {
/// Returns true if and only if this glob has a `**/` prefix.
fn has_doublestar_prefix(&self) -> bool {
self.actual.starts_with("**/")
|| (self.actual == "**" && self.is_only_dir)
self.actual.starts_with("**/") || self.actual == "**"
}
}
@@ -127,16 +126,7 @@ impl Gitignore {
/// `$XDG_CONFIG_HOME/git/ignore` is read. If `$XDG_CONFIG_HOME` is not
/// set or is empty, then `$HOME/.config/git/ignore` is used instead.
pub fn global() -> (Gitignore, Option<Error>) {
match gitconfig_excludes_path() {
None => (Gitignore::empty(), None),
Some(path) => {
if !path.is_file() {
(Gitignore::empty(), None)
} else {
Gitignore::new(path)
}
}
}
GitignoreBuilder::new("").build_global()
}
/// Creates a new empty gitignore matcher that never matches anything.
@@ -359,6 +349,36 @@ impl GitignoreBuilder {
})
}
/// Build a global gitignore matcher using the configuration in this
/// builder.
///
/// This consumes ownership of the builder unlike `build` because it
/// must mutate the builder to add the global gitignore globs.
///
/// Note that this ignores the path given to this builder's constructor
/// and instead derives the path automatically from git's global
/// configuration.
pub fn build_global(mut self) -> (Gitignore, Option<Error>) {
match gitconfig_excludes_path() {
None => (Gitignore::empty(), None),
Some(path) => {
if !path.is_file() {
(Gitignore::empty(), None)
} else {
let mut errs = PartialErrorBuilder::default();
errs.maybe_push_ignore_io(self.add(path));
match self.build() {
Ok(gi) => (gi, errs.into_error_option()),
Err(err) => {
errs.push(err);
(Gitignore::empty(), errs.into_error_option())
}
}
}
}
}
}
/// Add each glob from the file path given.
///
/// The file given should be formatted as a `gitignore` file.
@@ -419,6 +439,8 @@ impl GitignoreBuilder {
from: Option<PathBuf>,
mut line: &str,
) -> Result<&mut GitignoreBuilder, Error> {
#![allow(deprecated)]
if line.starts_with("#") {
return Ok(self);
}
@@ -435,7 +457,6 @@ impl GitignoreBuilder {
is_whitelist: false,
is_only_dir: false,
};
let mut literal_separator = false;
let mut is_absolute = false;
if line.starts_with("\\!") || line.starts_with("\\#") {
line = &line[1..];
@@ -450,7 +471,6 @@ impl GitignoreBuilder {
// then the glob can only match the beginning of a path
// (relative to the location of gitignore). We achieve this by
// simply banning wildcards from matching /.
literal_separator = true;
line = &line[1..];
is_absolute = true;
}
@@ -463,16 +483,11 @@ impl GitignoreBuilder {
line = &line[..i];
}
}
// If there is a literal slash, then we note that so that globbing
// doesn't let wildcards match slashes.
glob.actual = line.to_string();
if is_absolute || line.chars().any(|c| c == '/') {
literal_separator = true;
}
// If there was a slash, then this is a glob that must match the entire
// path name. Otherwise, we should let it match anywhere, so use a **/
// prefix.
if !literal_separator {
// If there is a literal slash, then this is a glob that must match the
// entire path name. Otherwise, we should let it match anywhere, so use
// a **/ prefix.
if !is_absolute && !line.chars().any(|c| c == '/') {
// ... but only if we don't already have a **/ prefix.
if !glob.has_doublestar_prefix() {
glob.actual = format!("**/{}", glob.actual);
@@ -486,7 +501,7 @@ impl GitignoreBuilder {
}
let parsed =
GlobBuilder::new(&glob.actual)
.literal_separator(literal_separator)
.literal_separator(true)
.case_insensitive(self.case_insensitive)
.backslash_escape(true)
.build()
@@ -503,12 +518,16 @@ impl GitignoreBuilder {
/// Toggle whether the globs should be matched case insensitively or not.
///
/// When this option is changed, only globs added after the change will be affected.
/// When this option is changed, only globs added after the change will be
/// affected.
///
/// This is disabled by default.
pub fn case_insensitive(
&mut self, yes: bool
&mut self,
yes: bool,
) -> Result<&mut GitignoreBuilder, Error> {
// TODO: This should not return a `Result`. Fix this in the next semver
// release.
self.case_insensitive = yes;
Ok(self)
}
@@ -518,7 +537,7 @@ impl GitignoreBuilder {
///
/// Note that the file path returned may not exist.
fn gitconfig_excludes_path() -> Option<PathBuf> {
// git supports $HOME/.gitconfig and $XDG_CONFIG_DIR/git/config. Notably,
// git supports $HOME/.gitconfig and $XDG_CONFIG_HOME/git/config. Notably,
// both can be active at the same time, where $HOME/.gitconfig takes
// precedent. So if $HOME/.gitconfig defines a `core.excludesFile`, then
// we're done.
@@ -549,7 +568,7 @@ fn gitconfig_home_contents() -> Option<Vec<u8>> {
}
/// Returns the file contents of git's global config file, if one exists, in
/// the user's XDG_CONFIG_DIR directory.
/// the user's XDG_CONFIG_HOME directory.
fn gitconfig_xdg_contents() -> Option<Vec<u8>> {
let path = env::var_os("XDG_CONFIG_HOME")
.and_then(|x| if x.is_empty() { None } else { Some(PathBuf::from(x)) })
@@ -689,6 +708,9 @@ mod tests {
ignored!(ig39, ROOT, "\\?", "?");
ignored!(ig40, ROOT, "\\*", "*");
ignored!(ig41, ROOT, "\\a", "a");
ignored!(ig42, ROOT, "s*.rs", "sfoo.rs");
ignored!(ig43, ROOT, "**", "foo.rs");
ignored!(ig44, ROOT, "**/**/*", "a/foo.rs");
not_ignored!(ignot1, ROOT, "amonths", "months");
not_ignored!(ignot2, ROOT, "monthsa", "months");
@@ -710,6 +732,7 @@ mod tests {
not_ignored!(ignot16, ROOT, "*\n!**/", "foo", true);
not_ignored!(ignot17, ROOT, "src/*.rs", "src/grep/src/main.rs");
not_ignored!(ignot18, ROOT, "path1/*", "path2/path1/foo");
not_ignored!(ignot19, ROOT, "s*.rs", "src/foo.rs");
fn bytes(s: &str) -> Vec<u8> {
s.to_string().into_bytes()

69
ignore/src/lib.rs
View File

@@ -46,7 +46,7 @@ See the documentation for `WalkBuilder` for many other options.
#![deny(missing_docs)]
extern crate crossbeam;
extern crate crossbeam_channel as channel;
extern crate globset;
#[macro_use]
extern crate lazy_static;
@@ -55,12 +55,10 @@ extern crate log;
extern crate memchr;
extern crate regex;
extern crate same_file;
#[cfg(test)]
extern crate tempdir;
extern crate thread_local;
extern crate walkdir;
#[cfg(windows)]
extern crate winapi;
extern crate winapi_util;
use std::error;
use std::fmt;
@@ -442,3 +440,66 @@ impl<T> Match<T> {
}
}
}
#[cfg(test)]
mod tests {
use std::env;
use std::error;
use std::fs;
use std::path::{Path, PathBuf};
use std::result;
/// A convenient result type alias.
pub type Result<T> =
result::Result<T, Box<dyn error::Error + Send + Sync>>;
macro_rules! err {
($($tt:tt)*) => {
Box::<dyn error::Error + Send + Sync>::from(format!($($tt)*))
}
}
/// A simple wrapper for creating a temporary directory that is
/// automatically deleted when it's dropped.
///
/// We use this in lieu of tempfile because tempfile brings in too many
/// dependencies.
#[derive(Debug)]
pub struct TempDir(PathBuf);
impl Drop for TempDir {
fn drop(&mut self) {
fs::remove_dir_all(&self.0).unwrap();
}
}
impl TempDir {
/// Create a new empty temporary directory under the system's configured
/// temporary directory.
pub fn new() -> Result<TempDir> {
use std::sync::atomic::{AtomicUsize, Ordering};
static TRIES: usize = 100;
static COUNTER: AtomicUsize = AtomicUsize::new(0);
let tmpdir = env::temp_dir();
for _ in 0..TRIES {
let count = COUNTER.fetch_add(1, Ordering::SeqCst);
let path = tmpdir.join("rust-ignore").join(count.to_string());
if path.is_dir() {
continue;
}
fs::create_dir_all(&path).map_err(|e| {
err!("failed to create {}: {}", path.display(), e)
})?;
return Ok(TempDir(path));
}
Err(err!("failed to create temp dir after {} tries", TRIES))
}
/// Return the underlying path to this temporary directory.
pub fn path(&self) -> &Path {
&self.0
}
}
}

7
ignore/src/overrides.rs
View File

@@ -139,13 +139,16 @@ impl OverrideBuilder {
}
/// Toggle whether the globs should be matched case insensitively or not.
///
///
/// When this option is changed, only globs added after the change will be affected.
///
/// This is disabled by default.
pub fn case_insensitive(
&mut self, yes: bool
&mut self,
yes: bool,
) -> Result<&mut OverrideBuilder, Error> {
// TODO: This should not return a `Result`. Fix this in the next semver
// release.
self.builder.case_insensitive(yes)?;
Ok(self)
}

48
ignore/src/pathutil.rs
View File

@@ -1,22 +1,56 @@
use std::ffi::OsStr;
use std::path::Path;
/// Returns true if and only if this file path is considered to be hidden.
use walk::DirEntry;
/// Returns true if and only if this entry is considered to be hidden.
///
/// This only returns true if the base name of the path starts with a `.`.
///
/// On Unix, this implements a more optimized check.
#[cfg(unix)]
pub fn is_hidden<P: AsRef<Path>>(path: P) -> bool {
pub fn is_hidden(dent: &DirEntry) -> bool {
use std::os::unix::ffi::OsStrExt;
if let Some(name) = file_name(path.as_ref()) {
if let Some(name) = file_name(dent.path()) {
name.as_bytes().get(0) == Some(&b'.')
} else {
false
}
}
/// Returns true if and only if this file path is considered to be hidden.
#[cfg(not(unix))]
pub fn is_hidden<P: AsRef<Path>>(path: P) -> bool {
if let Some(name) = file_name(path.as_ref()) {
/// Returns true if and only if this entry is considered to be hidden.
///
/// On Windows, this returns true if one of the following is true:
///
/// * The base name of the path starts with a `.`.
/// * The file attributes have the `HIDDEN` property set.
#[cfg(windows)]
pub fn is_hidden(dent: &DirEntry) -> bool {
use std::os::windows::fs::MetadataExt;
use winapi_util::file;
// This looks like we're doing an extra stat call, but on Windows, the
// directory traverser reuses the metadata retrieved from each directory
// entry and stores it on the DirEntry itself. So this is "free."
if let Ok(md) = dent.metadata() {
if file::is_hidden(md.file_attributes() as u64) {
return true;
}
}
if let Some(name) = file_name(dent.path()) {
name.to_str().map(|s| s.starts_with(".")).unwrap_or(false)
} else {
false
}
}
/// Returns true if and only if this entry is considered to be hidden.
///
/// This only returns true if the base name of the path starts with a `.`.
#[cfg(not(any(unix, windows)))]
pub fn is_hidden(dent: &DirEntry) -> bool {
if let Some(name) = file_name(dent.path()) {
name.to_str().map(|s| s.starts_with(".")).unwrap_or(false)
} else {
false

65
ignore/src/types.rs
View File

@@ -98,16 +98,20 @@ use {Error, Match};
const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("agda", &["*.agda", "*.lagda"]),
("ats", &["*.ats", "*.dats", "*.sats", "*.hats"]),
("aidl", &["*.aidl"]),
("amake", &["*.mk", "*.bp"]),
("asciidoc", &["*.adoc", "*.asc", "*.asciidoc"]),
("asm", &["*.asm", "*.s", "*.S"]),
("asp", &["*.aspx", "*.aspx.cs", "*.aspx.cs", "*.ascx", "*.ascx.cs", "*.ascx.vb"]),
("avro", &["*.avdl", "*.avpr", "*.avsc"]),
("awk", &["*.awk"]),
("bazel", &["*.bzl", "WORKSPACE", "BUILD"]),
("bazel", &["*.bzl", "WORKSPACE", "BUILD", "BUILD.bazel"]),
("bitbake", &["*.bb", "*.bbappend", "*.bbclass", "*.conf", "*.inc"]),
("bzip2", &["*.bz2"]),
("c", &["*.c", "*.h", "*.H"]),
("brotli", &["*.br"]),
("buildstream", &["*.bst"]),
("bzip2", &["*.bz2", "*.tbz2"]),
("c", &["*.[chH]", "*.[chH].in", "*.cats"]),
("cabal", &["*.cabal"]),
("cbor", &["*.cbor"]),
("ceylon", &["*.ceylon"]),
@@ -117,8 +121,8 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("creole", &["*.creole"]),
("config", &["*.cfg", "*.conf", "*.config", "*.ini"]),
("cpp", &[
"*.C", "*.cc", "*.cpp", "*.cxx",
"*.h", "*.H", "*.hh", "*.hpp", "*.hxx", "*.inl",
"*.[ChH]", "*.cc", "*.[ch]pp", "*.[ch]xx", "*.hh", "*.inl",
"*.[ChH].in", "*.cc.in", "*.[ch]pp.in", "*.[ch]xx.in", "*.hh.in",
]),
("crystal", &["Projectfile", "*.cr"]),
("cs", &["*.cs"]),
@@ -126,10 +130,12 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("cshtml", &["*.cshtml"]),
("css", &["*.css", "*.scss"]),
("csv", &["*.csv"]),
("cython", &["*.pyx"]),
("cython", &["*.pyx", "*.pxi", "*.pxd"]),
("dart", &["*.dart"]),
("d", &["*.d"]),
("dhall", &["*.dhall"]),
("docker", &["*Dockerfile*"]),
("edn", &["*.edn"]),
("elisp", &["*.el"]),
("elixir", &["*.ex", "*.eex", "*.exs"]),
("elm", &["*.elm"]),
@@ -141,16 +147,18 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
"*.f90", "*.F90", "*.f95", "*.F95",
]),
("fsharp", &["*.fs", "*.fsx", "*.fsi"]),
("gap", &["*.g", "*.gap", "*.gi", "*.gd", "*.tst"]),
("gn", &["*.gn", "*.gni"]),
("go", &["*.go"]),
("gzip", &["*.gz"]),
("gzip", &["*.gz", "*.tgz"]),
("groovy", &["*.groovy", "*.gradle"]),
("h", &["*.h", "*.hpp"]),
("hbs", &["*.hbs"]),
("haskell", &["*.hs", "*.lhs"]),
("haskell", &["*.hs", "*.lhs", "*.cpphs", "*.c2hs", "*.hsc"]),
("hs", &["*.hs", "*.lhs"]),
("html", &["*.htm", "*.html", "*.ejs"]),
("java", &["*.java", "*.jsp"]),
("idris", &["*.idr", "*.lidr"]),
("java", &["*.java", "*.jsp", "*.jspx", "*.properties"]),
("jinja", &["*.j2", "*.jinja", "*.jinja2"]),
("js", &[
"*.js", "*.jsx", "*.vue",
@@ -190,16 +198,19 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
"OFL-*[0-9]*",
]),
("lisp", &["*.el", "*.jl", "*.lisp", "*.lsp", "*.sc", "*.scm"]),
("lock", &["*.lock", "package-lock.json"]),
("log", &["*.log"]),
("lua", &["*.lua"]),
("lzma", &["*.lzma"]),
("lz4", &["*.lz4"]),
("m4", &["*.ac", "*.m4"]),
("make", &[
"gnumakefile", "Gnumakefile", "GNUmakefile",
"makefile", "Makefile",
"[Gg][Nn][Uu]makefile", "[Mm]akefile",
"[Gg][Nn][Uu]makefile.am", "[Mm]akefile.am",
"[Gg][Nn][Uu]makefile.in", "[Mm]akefile.in",
"*.mk", "*.mak"
]),
("mako", &["*.mako", "*.mao"]),
("markdown", &["*.markdown", "*.md", "*.mdown", "*.mkdn"]),
("md", &["*.markdown", "*.md", "*.mdown", "*.mkdn"]),
("man", &["*.[0-9lnpx]", "*.[0-9][cEFMmpSx]"]),
@@ -209,30 +220,34 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("msbuild", &[
"*.csproj", "*.fsproj", "*.vcxproj", "*.proj", "*.props", "*.targets"
]),
("nim", &["*.nim"]),
("nim", &["*.nim", "*.nimf", "*.nimble", "*.nims"]),
("nix", &["*.nix"]),
("objc", &["*.h", "*.m"]),
("objcpp", &["*.h", "*.mm"]),
("ocaml", &["*.ml", "*.mli", "*.mll", "*.mly"]),
("org", &["*.org"]),
("pascal", &["*.pas", "*.dpr", "*.lpr", "*.pp", "*.inc"]),
("perl", &["*.perl", "*.pl", "*.PL", "*.plh", "*.plx", "*.pm", "*.t"]),
("pdf", &["*.pdf"]),
("php", &["*.php", "*.php3", "*.php4", "*.php5", "*.phtml"]),
("pod", &["*.pod"]),
("postscript", &[".eps", ".ps"]),
("protobuf", &["*.proto"]),
("ps", &["*.cdxml", "*.ps1", "*.ps1xml", "*.psd1", "*.psm1"]),
("puppet", &["*.erb", "*.pp", "*.rb"]),
("purs", &["*.purs"]),
("py", &["*.py"]),
("qmake", &["*.pro", "*.pri", "*.prf"]),
("qml", &["*.qml"]),
("readme", &["README*", "*README"]),
("r", &["*.R", "*.r", "*.Rmd", "*.Rnw"]),
("rdoc", &["*.rdoc"]),
("robot", &["*.robot"]),
("rst", &["*.rst"]),
("ruby", &["Gemfile", "*.gemspec", ".irbrc", "Rakefile", "*.rb"]),
("rust", &["*.rs"]),
("sass", &["*.sass", "*.scss"]),
("scala", &["*.scala"]),
("scala", &["*.scala", "*.sbt"]),
("sh", &[
// Portable/misc. init files
".login", ".logout", ".profile", "profile",
@@ -273,8 +288,9 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
]),
("taskpaper", &["*.taskpaper"]),
("tcl", &["*.tcl"]),
("tex", &["*.tex", "*.ltx", "*.cls", "*.sty", "*.bib"]),
("tex", &["*.tex", "*.ltx", "*.cls", "*.sty", "*.bib", "*.dtx", "*.ins"]),
("textile", &["*.textile"]),
("thrift", &["*.thrift"]),
("tf", &["*.tf"]),
("ts", &["*.ts", "*.tsx"]),
("txt", &["*.txt"]),
@@ -288,10 +304,14 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
("vimscript", &["*.vim"]),
("wiki", &["*.mediawiki", "*.wiki"]),
("webidl", &["*.idl", "*.webidl", "*.widl"]),
("xml", &["*.xml", "*.xml.dist"]),
("xz", &["*.xz"]),
("xml", &[
"*.xml", "*.xml.dist", "*.dtd", "*.xsl", "*.xslt", "*.xsd", "*.xjb",
"*.rng", "*.sch",
]),
("xz", &["*.xz", "*.txz"]),
("yacc", &["*.y"]),
("yaml", &["*.yaml", "*.yml"]),
("zig", &["*.zig"]),
("zsh", &[
".zshenv", "zshenv",
".zlogin", "zlogin",
@@ -300,6 +320,7 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
".zshrc", "zshrc",
"*.zsh",
]),
("zstd", &["*.zst", "*.zstd"]),
];
/// Glob represents a single glob in a set of file type definitions.
@@ -338,6 +359,18 @@ impl<'a> Glob<'a> {
fn unmatched() -> Glob<'a> {
Glob(GlobInner::UnmatchedIgnore)
}
/// Return the file type defintion that matched, if one exists. A file type
/// definition always exists when a specific definition matches a file
/// path.
pub fn file_type_def(&self) -> Option<&FileTypeDef> {
match self {
Glob(GlobInner::UnmatchedIgnore) => None,
Glob(GlobInner::Matched { def, .. }) => {
Some(def)
},
}
}
}
/// A single file type definition.

833
ignore/src/walk.rs
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6
pkg/brew/ripgrep-bin.rb
View File

@@ -1,14 +1,14 @@
class RipgrepBin < Formula
version '0.9.0'
version '11.0.2'
desc "Recursively search directories for a regex pattern."
homepage "https://github.com/BurntSushi/ripgrep"
if OS.mac?
url "https://github.com/BurntSushi/ripgrep/releases/download/#{version}/ripgrep-#{version}-x86_64-apple-darwin.tar.gz"
sha256 "36003ea8b62ad6274dc14140039f448cdf5026827d53cf24dad2d84005557a8c"
sha256 "0ba26423691deedf2649b12b1abe3d2be294ee1cb17c40b68fe85efe194f4f57"
elsif OS.linux?
url "https://github.com/BurntSushi/ripgrep/releases/download/#{version}/ripgrep-#{version}-x86_64-unknown-linux-musl.tar.gz"
sha256 "2eb4443e58f95051ff76ea036ed1faf940d5a04af4e7ff5a7dbd74576b907e99"
sha256 "2e7978e346553fbc45c0940d9fa11e12f9afbae8213b261aad19b698150e169a"
end
conflicts_with "ripgrep"

1
rustfmt.toml Normal file
View File

@@ -0,0 +1 @@
disable_all_formatting = true

33
scripts/copy-examples Executable file
View File

@@ -0,0 +1,33 @@
#!/usr/bin/env python
from __future__ import absolute_import, division, print_function
import argparse
import codecs
import os.path
import re
RE_EACH_CODE_BLOCK = re.compile(
r'(?s)(?:```|\{\{< high rust[^>]+>\}\})[^\n]*\n(.*?)(?:```|\{\{< /high >\}\})' # noqa
)
RE_MARKER = re.compile(r'^(?:# )?//([^/].*)$')
RE_STRIP_COMMENT = re.compile(r'^# ?')
if __name__ == '__main__':
p = argparse.ArgumentParser()
p.add_argument('--rust-file', default='src/cookbook.rs')
p.add_argument('--example-dir', default='grep/examples')
args = p.parse_args()
with codecs.open(args.rust_file, encoding='utf-8') as f:
rustcode = f.read()
for m in RE_EACH_CODE_BLOCK.finditer(rustcode):
lines = m.group(1).splitlines()
marker, codelines = lines[0], lines[1:]
m = RE_MARKER.search(marker)
if m is None:
continue
code = '\n'.join(RE_STRIP_COMMENT.sub('', line) for line in codelines)
fpath = os.path.join(args.example_dir, m.group(1))
with codecs.open(fpath, mode='w+', encoding='utf-8') as f:
print(code, file=f)

974
src/app.rs
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796
src/args.rs
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64
src/config.rs
View File

@@ -5,11 +5,14 @@
use std::env;
use std::error::Error;
use std::fs::File;
use std::io::{self, BufRead};
use std::io;
use std::ffi::OsString;
use std::path::{Path, PathBuf};
use Result;
use bstr::{io::BufReadExt, ByteSlice};
use log;
use crate::Result;
/// Return a sequence of arguments derived from ripgrep rc configuration files.
pub fn args() -> Vec<OsString> {
@@ -34,7 +37,7 @@ pub fn args() -> Vec<OsString> {
message!("{}:{}", config_path.display(), err);
}
}
debug!(
log::debug!(
"{}: arguments loaded from config file: {:?}",
config_path.display(),
args
@@ -52,7 +55,7 @@ pub fn args() -> Vec<OsString> {
/// for each line in addition to successfully parsed arguments.
fn parse<P: AsRef<Path>>(
path: P,
) -> Result<(Vec<OsString>, Vec<Box<Error>>)> {
) -> Result<(Vec<OsString>, Vec<Box<dyn Error>>)> {
let path = path.as_ref();
match File::open(&path) {
Ok(file) => parse_reader(file),
@@ -73,63 +76,30 @@ fn parse<P: AsRef<Path>>(
/// in addition to successfully parsed arguments.
fn parse_reader<R: io::Read>(
rdr: R,
) -> Result<(Vec<OsString>, Vec<Box<Error>>)> {
let mut bufrdr = io::BufReader::new(rdr);
) -> Result<(Vec<OsString>, Vec<Box<dyn Error>>)> {
let bufrdr = io::BufReader::new(rdr);
let (mut args, mut errs) = (vec![], vec![]);
let mut line = vec![];
let mut line_number = 0;
while {
line.clear();
bufrdr.for_byte_line_with_terminator(|line| {
line_number += 1;
bufrdr.read_until(b'\n', &mut line)? > 0
} {
trim(&mut line);
let line = line.trim();
if line.is_empty() || line[0] == b'#' {
continue;
return Ok(true);
}
match bytes_to_os_string(&line) {
match line.to_os_str() {
Ok(osstr) => {
args.push(osstr);
args.push(osstr.to_os_string());
}
Err(err) => {
errs.push(format!("{}: {}", line_number, err).into());
}
}
}
Ok(true)
})?;
Ok((args, errs))
}
/// Trim the given bytes of whitespace according to the ASCII definition.
fn trim(x: &mut Vec<u8>) {
let upto = x.iter().take_while(|b| is_space(**b)).count();
x.drain(..upto);
let revto = x.len() - x.iter().rev().take_while(|b| is_space(**b)).count();
x.drain(revto..);
}
/// Returns true if and only if the given byte is an ASCII space character.
fn is_space(b: u8) -> bool {
b == b'\t'
|| b == b'\n'
|| b == b'\x0B'
|| b == b'\x0C'
|| b == b'\r'
|| b == b' '
}
/// On Unix, get an OsString from raw bytes.
#[cfg(unix)]
fn bytes_to_os_string(bytes: &[u8]) -> Result<OsString> {
use std::os::unix::ffi::OsStringExt;
Ok(OsString::from_vec(bytes.to_vec()))
}
/// On non-Unix (like Windows), require UTF-8.
#[cfg(not(unix))]
fn bytes_to_os_string(bytes: &[u8]) -> Result<OsString> {
String::from_utf8(bytes.to_vec()).map(OsString::from).map_err(From::from)
}
#[cfg(test)]
mod tests {
use std::ffi::OsString;

190
src/decompressor.rs
View File

@@ -1,190 +0,0 @@
use std::collections::HashMap;
use std::ffi::OsStr;
use std::fmt;
use std::io::{self, Read};
use std::path::Path;
use std::process::{self, Stdio};
use globset::{Glob, GlobSet, GlobSetBuilder};
/// A decompression command, contains the command to be spawned as well as any
/// necessary CLI args.
#[derive(Clone, Copy, Debug)]
struct DecompressionCommand {
cmd: &'static str,
args: &'static [&'static str],
}
impl DecompressionCommand {
/// Create a new decompress command
fn new(
cmd: &'static str,
args: &'static [&'static str],
) -> DecompressionCommand {
DecompressionCommand {
cmd, args
}
}
}
impl fmt::Display for DecompressionCommand {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{} {}", self.cmd, self.args.join(" "))
}
}
lazy_static! {
static ref DECOMPRESSION_COMMANDS: HashMap<
&'static str,
DecompressionCommand,
> = {
let mut m = HashMap::new();
const ARGS: &[&str] = &["-d", "-c"];
m.insert("gz", DecompressionCommand::new("gzip", ARGS));
m.insert("bz2", DecompressionCommand::new("bzip2", ARGS));
m.insert("xz", DecompressionCommand::new("xz", ARGS));
m.insert("lz4", DecompressionCommand::new("lz4", ARGS));
const LZMA_ARGS: &[&str] = &["--format=lzma", "-d", "-c"];
m.insert("lzma", DecompressionCommand::new("xz", LZMA_ARGS));
m
};
static ref SUPPORTED_COMPRESSION_FORMATS: GlobSet = {
let mut builder = GlobSetBuilder::new();
builder.add(Glob::new("*.gz").unwrap());
builder.add(Glob::new("*.bz2").unwrap());
builder.add(Glob::new("*.xz").unwrap());
builder.add(Glob::new("*.lz4").unwrap());
builder.add(Glob::new("*.lzma").unwrap());
builder.build().unwrap()
};
static ref TAR_ARCHIVE_FORMATS: GlobSet = {
let mut builder = GlobSetBuilder::new();
builder.add(Glob::new("*.tar.gz").unwrap());
builder.add(Glob::new("*.tar.xz").unwrap());
builder.add(Glob::new("*.tar.bz2").unwrap());
builder.add(Glob::new("*.tar.lz4").unwrap());
builder.add(Glob::new("*.tgz").unwrap());
builder.add(Glob::new("*.txz").unwrap());
builder.add(Glob::new("*.tbz2").unwrap());
builder.build().unwrap()
};
}
/// DecompressionReader provides an `io::Read` implementation for a limited
/// set of compression formats.
#[derive(Debug)]
pub struct DecompressionReader {
cmd: DecompressionCommand,
child: process::Child,
done: bool,
}
impl DecompressionReader {
/// Returns a handle to the stdout of the spawned decompression process for
/// `path`, which can be directly searched in the worker. When the returned
/// value is exhausted, the underlying process is reaped. If the underlying
/// process fails, then its stderr is read and converted into a normal
/// io::Error.
///
/// If there is any error in spawning the decompression command, then
/// return `None`, after outputting any necessary debug or error messages.
pub fn from_path(path: &Path) -> Option<DecompressionReader> {
let extension = match path.extension().and_then(OsStr::to_str) {
Some(extension) => extension,
None => {
debug!(
"{}: failed to get compresson extension", path.display());
return None;
}
};
let decompression_cmd = match DECOMPRESSION_COMMANDS.get(extension) {
Some(cmd) => cmd,
None => {
debug!(
"{}: failed to get decompression command", path.display());
return None;
}
};
let cmd = process::Command::new(decompression_cmd.cmd)
.args(decompression_cmd.args)
.arg(path)
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn();
let child = match cmd {
Ok(process) => process,
Err(_) => {
debug!(
"{}: decompression command '{}' not found",
path.display(), decompression_cmd.cmd);
return None;
}
};
Some(DecompressionReader::new(*decompression_cmd, child))
}
fn new(
cmd: DecompressionCommand,
child: process::Child,
) -> DecompressionReader {
DecompressionReader {
cmd: cmd,
child: child,
done: false,
}
}
fn read_error(&mut self) -> io::Result<io::Error> {
let mut errbytes = vec![];
self.child.stderr.as_mut().unwrap().read_to_end(&mut errbytes)?;
let errstr = String::from_utf8_lossy(&errbytes);
let errstr = errstr.trim();
Ok(if errstr.is_empty() {
let msg = format!("decompression command failed: '{}'", self.cmd);
io::Error::new(io::ErrorKind::Other, msg)
} else {
let msg = format!(
"decompression command '{}' failed: {}", self.cmd, errstr);
io::Error::new(io::ErrorKind::Other, msg)
})
}
}
impl io::Read for DecompressionReader {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
if self.done {
return Ok(0);
}
let nread = self.child.stdout.as_mut().unwrap().read(buf)?;
if nread == 0 {
self.done = true;
// Reap the child now that we're done reading.
// If the command failed, report stderr as an error.
if !self.child.wait()?.success() {
return Err(self.read_error()?);
}
}
Ok(nread)
}
}
/// Returns true if the given path contains a supported compression format or
/// is a TAR archive.
pub fn is_compressed(path: &Path) -> bool {
is_supported_compression_format(path) || is_tar_archive(path)
}
/// Returns true if the given path matches any one of the supported compression
/// formats
fn is_supported_compression_format(path: &Path) -> bool {
SUPPORTED_COMPRESSION_FORMATS.is_match(path)
}
/// Returns true if the given path matches any of the known TAR file formats.
fn is_tar_archive(path: &Path) -> bool {
TAR_ARCHIVE_FORMATS.is_match(path)
}

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