[PATCH 02/12] git-grep: support --no-external-grep

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

this one is mainly for testing builtin grep

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin-grep.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/builtin-grep.c b/builtin-grep.c
index cc9ba6b..ee96d01 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -20,6 +20,8 @@
 #endif
 #endif
 
+static int no_external_grep;
+
 /*
  * git grep pathspecs are somewhat different from diff-tree pathspecs;
  * pathname wildcards are allowed.
@@ -386,7 +388,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
 	 * we grep through the checked-out files. It tends to
 	 * be a lot more optimized
 	 */
-	if (!cached) {
+	if (!cached && !no_external_grep) {
 		hit = external_grep(opt, paths, cached);
 		if (hit >= 0)
 			return hit;
@@ -544,6 +546,10 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 			cached = 1;
 			continue;
 		}
+		if (!strcmp("--no-external-grep", arg)) {
+			no_external_grep = 1;
+			continue;
+		}
 		if (!strcmp("-a", arg) ||
 		    !strcmp("--text", arg)) {
 			opt.binary = GREP_BINARY_TEXT;
-- 
1.5.5.GIT