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| author | Michael Haggerty <mhagger@alum.mit.edu> | 2016-06-07 09:32:08 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2016-06-20 11:49:00 -0700 |
| commit | 841caad903f2b160e9f5ff05f961d20ad9085ddc (patch) | |
| tree | 524afe94d06cefcf32c5d64b760615105127faff | |
| parent | e3f510393c9d373f2969badc2b8afe179803a0fa (diff) | |
| download | git-841caad903f2b160e9f5ff05f961d20ad9085ddc.tar.gz git-841caad903f2b160e9f5ff05f961d20ad9085ddc.tar.xz | |
lock_ref_for_update(): avoid a symref resolution
If we're overwriting a symref with a SHA-1, we need to resolve the value
of the symref (1) to check against update->old_sha1 and (2) to write to
its reflog. However, we've already read the symref itself and know its
referent. So there is no need to read the symref's value through the
symref; we can read the referent directly.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | refs/files-backend.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/refs/files-backend.c b/refs/files-backend.c index 6f8fecd02..769e5c410 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -3479,7 +3479,7 @@ static int lock_ref_for_update(struct ref_update *update, * the transaction, so we have to read it here * to record and possibly check old_sha1: */ - if (read_ref_full(update->refname, 0, + if (read_ref_full(referent.buf, 0, lock->old_oid.hash, NULL)) { if (update->flags & REF_HAVE_OLD) { strbuf_addf(err, "cannot lock ref '%s': " |