commit: add repository argument to lookup_commit

Add a repository argument to allow callers of lookup_commit to be more
specific about which repository to handle. This is a small mechanical
change; it doesn't change the implementation to handle repositories
other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

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

1 files changed, 4 insertions, 3 deletions

diff --git a/commit.c b/commit.c
index 5e50a07932..4803c8be1d 100644
--- a/commit.c
+++ b/commit.c
@@ -52,7 +52,7 @@ struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref
 	return c;
 }
 
-struct commit *lookup_commit(const struct object_id *oid)
+struct commit *lookup_commit_the_repository(const struct object_id *oid)
 {
 	struct object *obj = lookup_object(the_repository, oid->hash);
 	if (!obj)
@@ -402,7 +402,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
 		 */
 		if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
 			continue;
-		new_parent = lookup_commit(&parent);
+		new_parent = lookup_commit(the_repository, &parent);
 		if (new_parent)
 			pptr = &commit_list_insert(new_parent, pptr)->next;
 	}
@@ -410,7 +410,8 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
 		int i;
 		struct commit *new_parent;
 		for (i = 0; i < graft->nr_parent; i++) {
-			new_parent = lookup_commit(&graft->parent[i]);
+			new_parent = lookup_commit(the_repository,
+						   &graft->parent[i]);
 			if (!new_parent)
 				continue;
 			pptr = &commit_list_insert(new_parent, pptr)->next;