1 files changed, 44 insertions, 38 deletions

diff --git a/builtin-reflog.c b/builtin-reflog.c
index fb37984ae6..341555139e 100644
--- a/builtin-reflog.c
+++ b/builtin-reflog.c
@@ -13,7 +13,7 @@
  */
 
 static const char reflog_expire_usage[] =
-"git-reflog expire [--verbose] [--dry-run] [--fix-stale] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...";
+"git-reflog (show|expire) [--verbose] [--dry-run] [--stale-fix] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...";
 
 static unsigned long default_reflog_expire;
 static unsigned long default_reflog_expire_unreachable;
@@ -173,7 +173,6 @@ static int keep_entry(struct commit **it, unsigned char *sha1)
 {
 	struct commit *commit;
 
-	*it = NULL;
 	if (is_null_sha1(sha1))
 		return 1;
 	commit = lookup_commit_reference_gently(sha1, 1);
@@ -195,41 +194,46 @@ static int keep_entry(struct commit **it, unsigned char *sha1)
 }
 
 static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
-			     char *data, void *cb_data)
+		const char *email, unsigned long timestamp, int tz,
+		const char *message, void *cb_data)
 {
 	struct expire_reflog_cb *cb = cb_data;
-	unsigned long timestamp;
-	char *cp, *ep;
 	struct commit *old, *new;
 
-	cp = strchr(data, '>');
-	if (!cp || *++cp != ' ')
-		goto prune;
-	timestamp = strtoul(cp, &ep, 10);
-	if (*ep != ' ')
-		goto prune;
 	if (timestamp < cb->cmd->expire_total)
 		goto prune;
 
+	old = new = NULL;
 	if (cb->cmd->stalefix &&
 	    (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1)))
 		goto prune;
 
-	if ((timestamp < cb->cmd->expire_unreachable) &&
-	    (!cb->ref_commit ||
-	     (old && !in_merge_bases(old, &cb->ref_commit, 1)) ||
-	     (new && !in_merge_bases(new, &cb->ref_commit, 1))))
-		goto prune;
+	if (timestamp < cb->cmd->expire_unreachable) {
+		if (!cb->ref_commit)
+			goto prune;
+		if (!old && !is_null_sha1(osha1))
+			old = lookup_commit_reference_gently(osha1, 1);
+		if (!new && !is_null_sha1(nsha1))
+			new = lookup_commit_reference_gently(nsha1, 1);
+		if ((old && !in_merge_bases(old, &cb->ref_commit, 1)) ||
+		    (new && !in_merge_bases(new, &cb->ref_commit, 1)))
+			goto prune;
+	}
 
-	if (cb->newlog)
-		fprintf(cb->newlog, "%s %s %s",
-			sha1_to_hex(osha1), sha1_to_hex(nsha1), data);
+	if (cb->newlog) {
+		char sign = (tz < 0) ? '-' : '+';
+		int zone = (tz < 0) ? (-tz) : tz;
+		fprintf(cb->newlog, "%s %s %s %lu %c%04d\t%s",
+			sha1_to_hex(osha1), sha1_to_hex(nsha1),
+			email, timestamp, sign, zone,
+			message);
+	}
 	if (cb->cmd->verbose)
-		printf("keep %s", data);
+		printf("keep %s", message);
 	return 0;
  prune:
 	if (!cb->newlog || cb->cmd->verbose)
-		printf("%sprune %s", cb->newlog ? "" : "would ", data);
+		printf("%sprune %s", cb->newlog ? "" : "would ", message);
 	return 0;
 }
 
@@ -238,20 +242,18 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
 	struct cmd_reflog_expire_cb *cmd = cb_data;
 	struct expire_reflog_cb cb;
 	struct ref_lock *lock;
-	char *newlog_path = NULL;
+	char *log_file, *newlog_path = NULL;
 	int status = 0;
 
-	if (strncmp(ref, "refs/", 5))
-		return error("not a ref '%s'", ref);
-
 	memset(&cb, 0, sizeof(cb));
 	/* we take the lock for the ref itself to prevent it from
 	 * getting updated.
 	 */
-	lock = lock_ref_sha1(ref + 5, sha1);
+	lock = lock_any_ref_for_update(ref, sha1);
 	if (!lock)
 		return error("cannot lock ref '%s'", ref);
-	if (!file_exists(lock->log_file))
+	log_file = xstrdup(git_path("logs/%s", ref));
+	if (!file_exists(log_file))
 		goto finish;
 	if (!cmd->dry_run) {
 		newlog_path = xstrdup(git_path("logs/%s.lock", ref));
@@ -259,9 +261,6 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
 	}
 
 	cb.ref_commit = lookup_commit_reference_gently(sha1, 1);
-	if (!cb.ref_commit)
-		fprintf(stderr,
-			"warning: ref '%s' does not point at a commit\n", ref);
 	cb.ref = ref;
 	cb.cmd = cmd;
 	for_each_reflog_ent(ref, expire_reflog_ent, &cb);
@@ -270,13 +269,14 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
 		if (fclose(cb.newlog))
 			status |= error("%s: %s", strerror(errno),
 					newlog_path);
-		if (rename(newlog_path, lock->log_file)) {
+		if (rename(newlog_path, log_file)) {
 			status |= error("cannot rename %s to %s",
-					newlog_path, lock->log_file);
+					newlog_path, log_file);
 			unlink(newlog_path);
 		}
 	}
 	free(newlog_path);
+	free(log_file);
 	unlock_ref(lock);
 	return status;
 }
@@ -350,7 +350,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
 	}
 
 	if (do_all)
-		status |= for_each_ref(expire_reflog, &cb);
+		status |= for_each_reflog(expire_reflog, &cb);
 	while (i < argc) {
 		const char *ref = argv[i++];
 		unsigned char sha1[20];
@@ -372,10 +372,16 @@ static const char reflog_usage[] =
 
 int cmd_reflog(int argc, const char **argv, const char *prefix)
 {
-	if (argc < 2)
-		usage(reflog_usage);
-	else if (!strcmp(argv[1], "expire"))
+	/* With no command, we default to showing it. */
+	if (argc < 2 || *argv[1] == '-')
+		return cmd_log_reflog(argc, argv, prefix);
+
+	if (!strcmp(argv[1], "show"))
+		return cmd_log_reflog(argc - 1, argv + 1, prefix);
+
+	if (!strcmp(argv[1], "expire"))
 		return cmd_reflog_expire(argc - 1, argv + 1, prefix);
-	else
-		usage(reflog_usage);
+
+	/* Not a recognized reflog command..*/
+	usage(reflog_usage);
 }