+ }
+ if (loop()) {
+ if (lock)
+ unlock_ref(lock);
+ return -1;
+ }
+
+ if (write_ref) {
+ if (write_ref_log_details) {
+ msg = xmalloc(strlen(write_ref_log_details) + 12);
+ sprintf(msg, "fetch from %s", write_ref_log_details);
+ }
+ else
+ msg = NULL;
+ ret = write_ref_sha1(lock, sha1, msg ? msg : "fetch (unknown)");
+ if (msg)
+ free(msg);
+ return ret;
+ }