tree: add repository argument to lookup_tree

Add a repository argument to allow the callers of lookup_tree
to be more specific about which repository to act on. 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: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/commit-graph.c b/commit-graph.c
index b63a1fc85e..d1a68f0128 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -344,7 +344,7 @@ static struct tree *load_tree_for_commit(struct commit_graph *g, struct commit *
 					   GRAPH_DATA_WIDTH * (c->graph_pos);
 
 	hashcpy(oid.hash, commit_data);
-	c->maybe_tree = lookup_tree(&oid);
+	c->maybe_tree = lookup_tree(the_repository, &oid);
 
 	return c->maybe_tree;
 }