tag: allow lookup_tag to handle arbitrary repositories

Signed-off-by: NStefan Beller <sbeller@google.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

tag.c

@@ -92,13 +92,13 @@ struct object *deref_tag_noverify(struct object *o)
 	return o;
 }
 
-struct tag *lookup_tag_the_repository(const struct object_id *oid)
+struct tag *lookup_tag(struct repository *r, const struct object_id *oid)
 {
-	struct object *obj = lookup_object(the_repository, oid->hash);
+	struct object *obj = lookup_object(r, oid->hash);
 	if (!obj)
-		return create_object(the_repository, oid->hash,
-				     alloc_tag_node(the_repository));
-	return object_as_type(the_repository, obj, OBJ_TAG, 0);
+		return create_object(r, oid->hash,
+				     alloc_tag_node(r));
+	return object_as_type(r, obj, OBJ_TAG, 0);
 }
 
 static timestamp_t parse_tag_date(const char *buf, const char *tail)

tag.h

@@ -11,8 +11,7 @@ struct tag {
 	char *tag;
 	timestamp_t date;
 };
-#define lookup_tag(r, o) lookup_tag_##r(o)
-extern struct tag *lookup_tag_the_repository(const struct object_id *oid);
+extern struct tag *lookup_tag(struct repository *r, const struct object_id *oid);
 #define parse_tag_buffer(r, i, d, s) parse_tag_buffer_##r(i, d, s)
 extern int parse_tag_buffer_the_repository(struct tag *item, const void *data, unsigned long size);
 extern int parse_tag(struct tag *item);