grep: fix exit status if external_grep() punts

If external_grep() is called and punts, grep_cache() mistakenly reported a
hit, even if there were none.  The bug can be triggered by calling "git
grep --no-color" from a subdirectory.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-grep.c b/builtin-grep.c
index f88a912ace9195c387566770432a904e2d7adcb7..da2f4fe1b85099fdce09d74062d4c700b3403fa3 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -448,6 +448,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
                hit = external_grep(opt, paths, cached);
                if (hit >= 0)
                        return hit;
+               hit = 0;
        }
 #endif