ripgrep: stop early when --files --quiet is used

This commit tweaks the implementation of the --files flag to stop early
when --quiet is provided.

Fixes #907

CHANGELOG.md

@@ -84,6 +84,9 @@ Bug fixes:
   Upgrade `grep` crate to `regex-syntax 0.5.0`.
 * [BUG #893](https://github.com/BurntSushi/ripgrep/issues/893):
   Improve support for git submodules.
+* [BUG #907](https://github.com/BurntSushi/ripgrep/issues/907):
+  ripgrep will now stop traversing after the first file when `--quiet --files`
+  is used.
 * [BUG #918](https://github.com/BurntSushi/ripgrep/issues/918):
   Don't skip tar archives when `-z/--search-zip` is used.
 * [BUG #934](https://github.com/BurntSushi/ripgrep/issues/934):

src/app.rs

@@ -1402,6 +1402,9 @@ fn flag_quiet(args: &mut Vec<RGArg>) {
 Do not print anything to stdout. If a match is found in a file, then ripgrep
 will stop searching. This is useful when ripgrep is used only for its exit
 code (which will be an error if no matches are found).
+
+When --files is used, then ripgrep will stop finding files after finding the
+first file that matches all ignore rules.
 ");
     let arg = RGArg::switch("quiet").short("q")
         .help(SHORT).long_help(LONG);

src/main.rs

@@ -245,6 +245,9 @@ fn run_files_parallel(args: Arc<Args>) -> Result<u64> {
                 args.no_ignore_messages(),
             ) {
                 tx.send(dent).unwrap();
+                if args.quiet() {
+                    return ignore::WalkState::Quit
+                }
             }
             ignore::WalkState::Continue
         })
@@ -266,10 +269,12 @@ fn run_files_one_thread(args: &Arc<Args>) -> Result<u64> {
             None => continue,
             Some(dent) => dent,
         };
-        if !args.quiet() {
+        file_count += 1;
+        if args.quiet() {
+            break;
+        } else {
             printer.path(dent.path());
         }
-        file_count += 1;
     }
     Ok(file_count)
 }