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authorJunio C Hamano <junkio@cox.net>2006-05-04 04:46:29 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-05-04 04:46:29 (GMT)
commite23d2d6b765162902bd8b722e1659f002b97a302 (patch)
tree885e5ab12460d3a010e6b97eb225763297b4bb90 /builtin-grep.c
parentb8d0f5a00313bc5fb173f77c9a91a94f94a5aa1b (diff)
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builtin-grep: -L (--files-without-match).
Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'builtin-grep.c')
-rw-r--r--builtin-grep.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/builtin-grep.c b/builtin-grep.c
index 0d61157..c89ee33 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -93,6 +93,7 @@ struct grep_opt {
unsigned linenum:1;
unsigned invert:1;
unsigned name_only:1;
+ unsigned unmatch_name_only:1;
unsigned count:1;
unsigned word_regexp:1;
#define GREP_BINARY_DEFAULT 0
@@ -241,6 +242,11 @@ static int grep_buffer(struct grep_opt *opt, const char *name,
*/
if (opt->invert)
hit = !hit;
+ if (opt->unmatch_name_only) {
+ if (hit)
+ return 0;
+ goto next_line;
+ }
if (hit) {
count++;
if (binary_match_only) {
@@ -297,6 +303,8 @@ static int grep_buffer(struct grep_opt *opt, const char *name,
prev->bol = bol;
prev->eol = eol;
}
+
+ next_line:
*eol = ch;
bol = eol + 1;
if (!left)
@@ -304,6 +312,13 @@ static int grep_buffer(struct grep_opt *opt, const char *name,
left--;
lno++;
}
+
+ if (opt->unmatch_name_only) {
+ /* We did not see any hit, so we want to show this */
+ printf("%s\n", name);
+ return 1;
+ }
+
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
@@ -532,6 +547,11 @@ int cmd_grep(int argc, const char **argv, char **envp)
opt.name_only = 1;
continue;
}
+ if (!strcmp("-L", arg) ||
+ !strcmp("--files-without-match", arg)) {
+ opt.unmatch_name_only = 1;
+ continue;
+ }
if (!strcmp("-c", arg) ||
!strcmp("--count", arg)) {
opt.count = 1;