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| author |  Jonathan Nieder <jrnieder@gmail.com> | 2014-09-10 18:22:48 -0700 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2014-10-15 10:47:25 -0700 |
| commit | 62a2d52514aed2b684409cb48e40e0cd14335d1b (patch) | |
| tree | 609d4997c69205497bbd6103c0d76f49e22b91e8 /t/t3200-branch.sh | |
| parent | reflog test: test interaction with detached HEAD (diff) | |
| download | tgif-62a2d52514aed2b684409cb48e40e0cd14335d1b.tar.xz | |
branch -d: avoid repeated symref resolution
If a repository gets in a broken state with too much symref nesting,
it cannot be repaired with "git branch -d":
$ git symbolic-ref refs/heads/nonsense refs/heads/nonsense
$ git branch -d nonsense
error: branch 'nonsense' not found.
Worse, "git update-ref --no-deref -d" doesn't work for such repairs
either:
$ git update-ref -d refs/heads/nonsense
error: unable to resolve reference refs/heads/nonsense: Too many levels of symbolic links
Fix both by teaching resolve_ref_unsafe a new RESOLVE_REF_NO_RECURSE
flag and passing it when appropriate.
Callers can still read the value of a symref (for example to print a
message about it) with that flag set --- resolve_ref_unsafe will
resolve one level of symrefs and stop there.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t3200-branch.sh')
| -rwxr-xr-x | t/t3200-branch.sh | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index ac31b711f2..432921b6b8 100755 --- a/t/t3200-branch.sh +++ b/t/t3200-branch.sh @@ -285,6 +285,15 @@ test_expect_success 'deleting a dangling symref' ' test_i18ncmp expect actual ' +test_expect_success 'deleting a self-referential symref' ' + git symbolic-ref refs/heads/self-reference refs/heads/self-reference && + test_path_is_file .git/refs/heads/self-reference && + echo "Deleted branch self-reference (was refs/heads/self-reference)." >expect && + git branch -d self-reference >actual && + test_path_is_missing .git/refs/heads/self-reference && + test_i18ncmp expect actual +' + test_expect_success 'renaming a symref is not allowed' ' git symbolic-ref refs/heads/master2 refs/heads/master && test_must_fail git branch -m master2 master3 && |