perf: add test showing exponential growth in path globbing

diff --git a/upload-pack.c b/upload-pack.c
index 7597ba3405e161d59608e18ec580946c60f9e6d2..ffb028d6231e24877b5b6af616d0c3de59516d95 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -822,9 +822,13 @@ static void receive_needs(void)
                        use_include_tag = 1;
 
                o = parse_object(sha1_buf);
-               if (!o)
+               if (!o) {
+                       packet_write_fmt(1,
+                                        "ERR upload-pack: not our ref %s",
+                                        sha1_to_hex(sha1_buf));
                        die("git upload-pack: not our ref %s",
                            sha1_to_hex(sha1_buf));
+               }
                if (!(o->flags & WANTED)) {
                        o->flags |= WANTED;
                        if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1