expose a helper function peel_to_type().

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 692a76126b027133fd046f03003fe8e49218f192..d2bb12e574fb8e18f9b1e3d241f73f732ac740d3 100644 (file)
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -2033,7 +2033,8 @@ static void get_object_list(int ac, const char **av)
                        die("bad revision '%s'", line);
        }
 
-       prepare_revision_walk(&revs);
+       if (prepare_revision_walk(&revs))
+               die("revision walk setup failed");
        mark_edges_uninteresting(revs.commits, &revs, show_edge);
        traverse_commit_list(&revs, show_commit, show_object);