From: Ronnie Sahlberg <sahlb...@google.com>
Date: Thu, 1 May 2014 10:40:10 -0700
Move the check for check_refname_format from lock_any_ref_for_update
to lock_ref_sha1_basic. At some later stage we will get rid of
lock_any_ref_for_update completely. This has no visible impact to callers,
except for inability to lock badly named refs which is not possible today
anyway but for other reasons.
Keep lock_any_ref_for_update as a no-op wrapper --- it is the public facing
version of this interface and keeping it as a separate function will make
it easier to experiment with the internal lock_ref_sha1_basic signature.
Note that if lock_ref_sha1_basic now checks the refname format and fails to
lock the ref it will not be possible to delete such a ref since deletion
implies we first lock the ref. In fact, we currently fail even earlier than
that since these refs are not even recognized to exist.
Example:
$ cp .git/refs/heads/master .git/refs/heads/echo...\*\*
$ ./git branch -D .git/refs/heads/echo...\*\*
error: branch '.git/refs/heads/echo...**' not found.
This is not a new regression and this has been broken for a while.
Later patches in the series will start repairing the handling of badly
named refs, at which time we will need to modify lock_ref_sha1_basic once more
in order to allow locking these refs for certain use cases such as rename
and delete.
Signed-off-by: Ronnie Sahlberg <sahlb...@google.com>
Signed-off-by: Jonathan Nieder <jrnie...@gmail.com>
---
refs.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/refs.c b/refs.c
index 39571f5..3c2ce57 100644
--- a/refs.c
+++ b/refs.c
@@ -2091,6 +2091,11 @@ static struct ref_lock *lock_ref_sha1_basic(const char
*refname,
int missing = 0;
int attempts_remaining = 3;
+ if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
lock = xcalloc(1, sizeof(struct ref_lock));
lock->lock_fd = -1;
@@ -2182,8 +2187,6 @@ struct ref_lock *lock_any_ref_for_update(const char
*refname,
const unsigned char *old_sha1,
int flags, int *type_p)
{
- if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
- return NULL;
return lock_ref_sha1_basic(refname, old_sha1, flags, type_p);
}
--
2.1.0.rc2.206.gedb03e5
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