replace-object: allow do_lookup_replace_object to handle arbitrary repositories

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

replace-object.h

@@ -14,8 +14,8 @@ struct replace_object {
  * This internal function is only declared here for the benefit of
  * lookup_replace_object().  Please do not call it directly.
  */
-#define do_lookup_replace_object(r, s) do_lookup_replace_object_##r(s)
-extern const struct object_id *do_lookup_replace_object_the_repository(const struct object_id *oid);
+extern const struct object_id *do_lookup_replace_object(struct repository *r,
+							const struct object_id *oid);
 
 /*
  * If object sha1 should be replaced, return the replacement object's

replace_object.c

@@ -53,17 +53,18 @@ static void prepare_replace_object(struct repository *r)
  * permanently-allocated value.  This function always respects replace
  * references, regardless of the value of check_replace_refs.
  */
-const struct object_id *do_lookup_replace_object_the_repository(const struct object_id *oid)
+const struct object_id *do_lookup_replace_object(struct repository *r,
+						 const struct object_id *oid)
 {
 	int depth = MAXREPLACEDEPTH;
 	const struct object_id *cur = oid;
 
-	prepare_replace_object(the_repository);
+	prepare_replace_object(r);
 
 	/* Try to recursively replace the object */
 	while (depth-- > 0) {
 		struct replace_object *repl_obj =
-			oidmap_get(the_repository->objects->replace_map, cur);
+			oidmap_get(r->objects->replace_map, cur);
 		if (!repl_obj)
 			return cur;
 		cur = &repl_obj->replacement;