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grep: grep cache entries if they are "assume unchanged"

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"Assume unchanged" bit means "please pretend that I have never touched
this file", so  if user removes the file, we should not care.

This patch teaches "git grep" to use cache version in such
situations. External grep case has not been fixed yet. But given that
on the platform that CE_VALID bit may be used like Windows, external
grep is not available anyway, I would wait for people to raise their
hands before touching it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2008-12-27 15:21:03 +07:00 committed by Junio C Hamano
parent e70b9a8bd2
commit 57d43466fb
2 changed files with 13 additions and 1 deletions
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7
builtin-grep.c
View File

@ -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);

7
t/t7002-grep.sh
View File

@ -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