git.el: Do not display empty directories.

diff --git a/upload-pack.c b/upload-pack.c
index 7e04311027176fc87c1de7dd619000d2a75d4eb9..b26d05331d7eeab4efea01594ecf196bc5fb50ed 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -129,7 +129,8 @@ static int do_rev_list(int fd, void *create_full_pack)
                }
                setup_revisions(0, NULL, &revs, NULL);
        }
-       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);
        return 0;
@@ -533,7 +534,8 @@ static void receive_needs(void)
                                /* make sure the real parents are parsed */
                                unregister_shallow(object->sha1);
                                object->parsed = 0;
-                               parse_commit((struct commit *)object);
+                               if (parse_commit((struct commit *)object))
+                                       die("invalid commit");
                                parents = ((struct commit *)object)->parents;
                                while (parents) {
                                        add_object_array(&parents->item->object,
@@ -575,7 +577,8 @@ static int send_ref(const char *refname, const unsigned char *sha1, int flag, vo
        }
        if (o->type == OBJ_TAG) {
                o = deref_tag(o, refname, 0);
-               packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname);
+               if (o)
+                       packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname);
        }
        return 0;
 }
@@ -620,6 +623,9 @@ int main(int argc, char **argv)
 
        if (i != argc-1)
                usage(upload_pack_usage);
+
+       setup_path(NULL);
+
        dir = argv[i];
 
        if (!enter_repo(dir, strict))