update-index: do not die too early in a read-only repository.

diff --git a/refs.c b/refs.c
index f3579457ce91e87af42eb6cb68aa791b91d66193..63877037893603c385e63547c83ea8c59f7c3101 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1192,12 +1192,14 @@ int for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data)
                    !message || message[0] != ' ' ||
                    (message[1] != '+' && message[1] != '-') ||
                    !isdigit(message[2]) || !isdigit(message[3]) ||
-                   !isdigit(message[4]) || !isdigit(message[5]) ||
-                   message[6] != '\t')
+                   !isdigit(message[4]) || !isdigit(message[5]))
                        continue; /* corrupt? */
                email_end[1] = '\0';
                tz = strtol(message + 1, NULL, 10);
-               message += 7;
+               if (message[6] != '\t')
+                       message += 6;
+               else
+                       message += 7;
                ret = fn(osha1, nsha1, buf+82, timestamp, tz, message, cb_data);
                if (ret)
                        break;
@@ -1249,7 +1251,7 @@ static int do_for_each_reflog(const char *base, each_ref_fn fn, void *cb_data)
                free(log);
                closedir(dir);
        }
-       else
+       else if (*base)
                return errno;
        return retval;
 }