reachable: use traverse_commit_list instead of custom walk

diff --git a/refs.c b/refs.c
index 311a6b52b1a9b65c997357e2d1d80e0e4743b2ca..ffd45e92922ec52dccccfaecf1ceaf29f9231337 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -3159,7 +3159,7 @@ static int read_ref_at_ent_oldest(unsigned char *osha1, unsigned char *nsha1,
        return 1;
 }
 
-int read_ref_at(const char *refname, unsigned long at_time, int cnt,
+int read_ref_at(const char *refname, unsigned int flags, unsigned long at_time, int cnt,
                unsigned char *sha1, char **msg,
                unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt)
 {
@@ -3177,8 +3177,12 @@ int read_ref_at(const char *refname, unsigned long at_time, int cnt,
 
        for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb);
 
-       if (!cb.reccnt)
-               die("Log for %s is empty.", refname);
+       if (!cb.reccnt) {
+               if (flags & GET_SHA1_QUIETLY)
+                       exit(128);
+               else
+                       die("Log for %s is empty.", refname);
+       }
        if (cb.found_it)
                return 0;