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search: add support for searching compressed files

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This commit adds opt-in support for searching compressed files during
recursive search. This behavior is only enabled when the
`-z/--search-zip` flag is passed to ripgrep. When enabled, a limited set
of common compression formats are recognized via file extension, and a
new process is spawned to perform the decompression. ripgrep then
searches the stdout of that spawned process.

Closes #539
This commit is contained in:
Balaji Sivaraman
2018-01-07 21:35:58 +05:30
committed by Andrew Gallant
parent a8543f798d
commit f007f940c5
18 changed files with 373 additions and 24 deletions
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8
README.md
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@@ -91,6 +91,8 @@ increases the times to `2.640s` for ripgrep and `10.277s` for GNU grep.
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 or bzip2 current) with the `-z/--search-zip` flag.
In other words, use `ripgrep` if you like speed, filtering by default, fewer
bugs, and Unicode support.
@@ -109,12 +111,10 @@ give you a glimpse at some important downsides or missing features of
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 yet support searching compressed files. (Likely to be
supported in the future.)
* `ripgrep` doesn't have multiline search. (Unlikely to ever be supported.)
In other words, if you like fancy regexes, searching compressed files or
multiline search, then `ripgrep` may not quite meet your needs (yet).
In other words, if you like fancy regexes or multiline search, then `ripgrep`
may not quite meet your needs (yet).
### Feature comparison