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-rw-r--r--builtin-grep.c7
-rwxr-xr-xt/t7002-grep.sh7
2 files changed, 13 insertions, 1 deletions
diff --git a/builtin-grep.c b/builtin-grep.c
index 3c97c2c4d5..bebf15cd6f 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -404,7 +404,12 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
continue;
if (!pathspec_matches(paths, ce->name))
continue;
- if (cached) {
+ /*
+ * If CE_VALID is on, we assume worktree file and its cache entry
+ * are identical, even if worktree file has been modified, so use
+ * cache version instead
+ */
+ if (cached || (ce->ce_flags & CE_VALID)) {
if (ce_stage(ce))
continue;
hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index 18fe6f2d57..c4938544d4 100755
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -161,7 +161,14 @@ test_expect_success 'log grep (6)' '
git log --author=-0700 --pretty=tformat:%s >actual &&
>expect &&
test_cmp expect actual
+'
+test_expect_success 'grep with CE_VALID file' '
+ git update-index --assume-unchanged t/t &&
+ rm t/t &&
+ test "$(git grep --no-ext-grep t)" = "t/t:test" &&
+ git update-index --no-assume-unchanged t/t &&
+ git checkout t/t
'
test_done