add_one_ref(): rewrite to take an object_id argument

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

reachable.c

@@ -22,9 +22,10 @@ static void update_progress(struct connectivity_progress *cp)
 		display_progress(cp->progress, cp->count);
 }
 
-static int add_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+static int add_one_ref(const char *path, const struct object_id *oid,
+		       int flag, void *cb_data)
 {
-	struct object *object = parse_object_or_die(sha1, path);
+	struct object *object = parse_object_or_die(oid->hash, path);
 	struct rev_info *revs = (struct rev_info *)cb_data;
 
 	add_pending_object(revs, object, "");
@@ -155,8 +156,6 @@ void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
 			    struct progress *progress)
 {
 	struct connectivity_progress cp;
-	struct each_ref_fn_sha1_adapter wrapped_add_one_ref =
-		{add_one_ref, revs};
 
 	/*
 	 * Set up revision parsing, and mark us as being interested
@@ -170,10 +169,10 @@ void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
 	add_index_objects_to_pending(revs, 0);
 
 	/* Add all external refs */
-	for_each_ref(each_ref_fn_adapter, &wrapped_add_one_ref);
+	for_each_ref(add_one_ref, revs);
 
 	/* detached HEAD is not included in the list above */
-	head_ref(each_ref_fn_adapter, &wrapped_add_one_ref);
+	head_ref(add_one_ref, revs);
 
 	/* Add all reflog info */
 	if (mark_reflog)