[PATCH 06/12] commit-graph: load a root tree from specific graph

[Derrick Stolee]

When lazy-loading a tree for a commit, it will be important to select
the tree from a specific struct commit_graph. Create a new method that
specifies the commit-graph file and use that in
get_commit_tree_in_graph().

Signed-off-by: Derrick Stolee <dsto...@microsoft.com>
---
 commit-graph.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/commit-graph.c b/commit-graph.c
index b4c146c423..8c636abba9 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -357,14 +357,20 @@ static struct tree *load_tree_for_commit(struct 
commit_graph *g, struct commit *
        return c->maybe_tree;
 }
 
-struct tree *get_commit_tree_in_graph(const struct commit *c)
+static struct tree *get_commit_tree_in_graph_one(struct commit_graph *g,
+                                                const struct commit *c)
 {
        if (c->maybe_tree)
                return c->maybe_tree;
        if (c->graph_pos == COMMIT_NOT_FROM_GRAPH)
                BUG("get_commit_tree_in_graph called from non-commit-graph 
commit");
 
-       return load_tree_for_commit(commit_graph, (struct commit *)c);
+       return load_tree_for_commit(g, (struct commit *)c);
+}
+
+struct tree *get_commit_tree_in_graph(const struct commit *c)
+{
+       return get_commit_tree_in_graph_one(commit_graph, c);
 }
 
 static void write_graph_chunk_fanout(struct hashfile *f,
-- 
2.16.2.329.gfb62395de6