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Show usage string for 'git grep -h'

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Clarification: the following description only talks about "git
grep -h" without any other options and arguments.

Such a change cannot be breaking backward compatibility.  "grep
-h" cannot be asking for suppressing filenames, as there is no
match pattern specified.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2009-11-09 09:04:42 -06:00 committed by Junio C Hamano
parent fe9a215214
commit 9c855c3178
1 changed files with 7 additions and 0 deletions
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7
builtin-grep.c
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@ -788,6 +788,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
OPT_END()
};
/*
* 'git grep -h', unlike 'git grep -h <pattern>', is a request
* to show usage information and exit.
*/
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(grep_usage, options);
memset(&opt, 0, sizeof(opt));
opt.prefix = prefix;
opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;