Change to use ref transactions for all updates to refs.
Signed-off-by: Ronnie Sahlberg <sahlb...@google.com>
---
sequencer.c | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/sequencer.c b/sequencer.c
index bde5f04..7d59f58 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -272,19 +272,29 @@ static int error_dirty_index(struct replay_opts *opts)
static int fast_forward_to(const unsigned char *to, const unsigned char *from,
int unborn, struct replay_opts *opts)
{
- struct ref_lock *ref_lock;
+ struct ref_transaction *transaction;
struct strbuf sb = STRBUF_INIT;
- int ret;
+ char *err = NULL;
read_cache();
if (checkout_fast_forward(from, to, 1))
exit(1); /* the callee should have complained already */
- ref_lock = lock_any_ref_for_update("HEAD", unborn ? null_sha1 : from,
- 0, NULL);
+
strbuf_addf(&sb, "%s: fast-forward", action_name(opts));
- ret = write_ref_sha1(ref_lock, to, sb.buf);
+
+ transaction = ref_transaction_begin();
+ if ((!transaction ||
+ ref_transaction_update(transaction, "HEAD", to, from,
+ 0, !unborn)) ||
+ (ref_transaction_commit(transaction, sb.buf, &err) &&
+ !(transaction = NULL))) {
+ ref_transaction_rollback(transaction);
+ strbuf_release(&sb);
+ return error(_("HEAD: Could not fast-forward: %s\n"), err);
+ }
+
strbuf_release(&sb);
- return ret;
+ return 0;
}
static int do_recursive_merge(struct commit *base, struct commit *next,
--
1.9.1.521.g5dc89fa
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