From: Ronnie Sahlberg Date: Mon, 28 Apr 2014 22:54:32 GMT Subject: [PATCH v4 17/27] refs.c: change update_ref to use a transaction Message-ID: <1398725682-30782-18-git-send-email-sahlberg@google.com> In-Reply-To: <1398725682-30782-1-git-send-email-sahlberg@google.com> Change the update_ref helper function to use a ref transaction internally. Signed-off-by: Ronnie Sahlberg --- refs.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/refs.c b/refs.c index 0a4e28e..563f336 100644 --- a/refs.c +++ b/refs.c @@ -3396,11 +3396,28 @@ int update_ref(const char *action, const char *refname, const unsigned char *sha1, const unsigned char *oldval, int flags, enum action_on_err onerr) { - struct ref_lock *lock; - lock = update_ref_lock(refname, oldval, flags, NULL, onerr); - if (!lock) + struct ref_transaction *t; + struct strbuf err = STRBUF_INIT; + + t = ref_transaction_begin(); + if ((!t || + ref_transaction_update(t, refname, sha1, oldval, flags, + !!oldval)) || + (ref_transaction_commit(t, action, &err) && !(t = NULL))) { + const char *str = "update_ref failed for ref '%s': %s"; + + ref_transaction_rollback(t); + switch (onerr) { + case UPDATE_REFS_MSG_ON_ERR: + error(str, refname, err.buf); break; + case UPDATE_REFS_DIE_ON_ERR: + die(str, refname, err.buf); break; + case UPDATE_REFS_QUIET_ON_ERR: break; + } + strbuf_release(&err); return 1; - return update_ref_write(action, refname, sha1, lock, NULL, onerr); + } + return 0; } static int ref_update_compare(const void *r1, const void *r2) -- 1.9.1.528.g98b8868.dirty