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fsck: do not fallback "git fsck <bogus>" to "git fsck" 

Since fsck tries to continue as much as it can after seeing
an error, we still do the reachability check even if some
heads we were given on the command-line are bogus. But if
_none_ of the heads is is valid, we fallback to checking all
refs and the index, which is not what the user asked for at
all.

Instead of checking "heads", the number of successful heads
we got, check "argc" (which we know only has non-options in
it, because parse_options removed the others).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2017-01-16 16:34:21 -05:00 committed by Junio C Hamano
parent c6c7b16d23
commit c3271a0e47
2 changed files with 12 additions and 1 deletions
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2
builtin/fsck.c
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@ -778,7 +778,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
* default ones from .git/refs. We also consider the index file
* in this case (ie this implies --cache).
*/
if (!heads) {
if (!argc) {
get_default_heads();
keep_cache_objects = 1;
}

11
t/t1450-fsck.sh
View File

@ -616,4 +616,15 @@ test_expect_success 'fsck $name notices bogus $name' '
test_must_fail git fsck $_z40
'
test_expect_success 'bogus head does not fallback to all heads' '
# set up a case that will cause a reachability complaint
echo to-be-deleted >foo &&
git add foo &&
blob=$(git rev-parse :foo) &&
test_when_finished "git rm --cached foo" &&
remove_object $blob &&
test_must_fail git fsck $_z40 >out 2>&1 &&
! grep $blob out
'
test_done