--- a/mercurial/commands.py Fri Sep 02 20:15:37 2016 +0000
+++ b/mercurial/commands.py Fri Sep 23 12:45:10 2016 -0500
@@ -4288,20 +4288,23 @@
_('[OPTION]... PATTERN [FILE]...'),
inferrepo=True)
def grep(ui, repo, pattern, *pats, **opts):
- """search for a pattern in specified files and revisions
-
- Search revisions of files for a regular expression.
-
- This command behaves differently than Unix grep. It only accepts
- Python/Perl regexps. It searches repository history, not the
- working directory. It always prints the revision number in which a
- match appears.
-
- By default, grep only prints output for the first revision of a
+ """search revision history for a pattern in specified files
+
+ Search revision history for a regular expression in the specified
+ files or the entire project.
+
+ By default, grep prints the most recent revision number for each
file in which it finds a match. To get it to print every revision
- that contains a change in match status ("-" for a match that
- becomes a non-match, or "+" for a non-match that becomes a match),
- use the --all flag.
+ that contains a change in match status ("-" for a match that becomes
+ a non-match, or "+" for a non-match that becomes a match), use the
+ --all flag.
+
+ PATTERN can be any Python (roughly Perl-compatible) regular
+ expression.
+
+ If no FILEs are specified (and -f/--follow isn't set), all files in
+ the repository are searched, including those that don't exist in the
+ current branch or have been deleted in a prior changeset.
Returns 0 if a match is found, 1 otherwise.
"""