diff options
author | Jeff King <peff@peff.net> | 2011-04-06 01:20:25 +0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2011-04-06 07:01:37 +0400 |
commit | 59d418fe10c207a510672d17a854697a8abc1e0b (patch) | |
tree | b7749f32165822dc7b6a22f512e453130da0e277 | |
parent | 7ed863a85a6ce2c4ac4476848310b8f917ab41f9 (diff) |
stash: fix accidental apply of non-existent stashes
Once upon a time, "git rev-parse ref@{9999999}" did not
generate an error. Therefore when we got an invalid stash
reference in "stash apply", we could end up not noticing
until quite late. Commit b0f0ecd (detached-stash: work
around git rev-parse failure to detect bad log refs,
2010-08-21) handled this by checking for the "Log for stash
has only %d entries" warning on stderr when we validated the
ref.
A few days later, e6eedc3 (rev-parse: exit with non-zero
status if ref@{n} is not valid., 2010-08-24) fixed the
original issue. That made the extra stderr test superfluous,
but also introduced a new bug. Now the early call to:
git rev-parse --symbolic "$@"
fails, but we don't notice the exit code. Worse, its empty
output means we think the user didn't provide us a ref, and
we try to apply stash@{0}.
This patch checks the rev-parse exit code and fails early in
the revision parsing process. We can also get rid of the
stderr test; as a bonus, this means that "stash apply" can
now run under GIT_TRACE=1 properly.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-x | git-stash.sh | 12 | ||||
-rwxr-xr-x | t/t3903-stash.sh | 6 |
2 files changed, 7 insertions, 11 deletions
diff --git a/git-stash.sh b/git-stash.sh index 7561b374d2..4f26deacca 100755 --- a/git-stash.sh +++ b/git-stash.sh @@ -264,7 +264,7 @@ parse_flags_and_rev() b_tree= i_tree= - REV=$(git rev-parse --no-flags --symbolic "$@" 2>/dev/null) + REV=$(git rev-parse --no-flags --symbolic "$@") || exit 1 FLAGS= for opt @@ -310,16 +310,6 @@ parse_flags_and_rev() IS_STASH_LIKE=t && test "$ref_stash" = "$(git rev-parse --symbolic-full-name "${REV%@*}")" && IS_STASH_REF=t - - if test "${REV}" != "${REV%{*\}}" - then - # maintainers: it would be better if git rev-parse indicated - # this condition with a non-zero status code but as of 1.7.2.1 it - # it did not. So, we use non-empty stderr output as a proxy for the - # condition of interest. - test -z "$(git rev-parse "$REV" 2>&1 >/dev/null)" || die "$REV does not exist in the stash log" - fi - } is_stash_like() diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh index 6fd560ccf1..4f4825770f 100755 --- a/t/t3903-stash.sh +++ b/t/t3903-stash.sh @@ -37,6 +37,12 @@ test_expect_success 'parents of stash' ' test_cmp output expect ' +test_expect_success 'applying bogus stash does nothing' ' + test_must_fail git stash apply stash@{1} && + echo 1 >expect && + test_cmp expect file +' + test_expect_success 'apply needs clean working directory' ' echo 4 > other-file && git add other-file && |