Merge branch 'ds/lazy-load-trees'

The code has been taught to use the duplicated information stored
in the commit-graph file to learn the tree object name for a commit
to avoid opening and parsing the commit object when it makes sense
to do so.

* ds/lazy-load-trees:
  coccinelle: avoid wrong transformation suggestions from commit.cocci
  commit-graph: lazy-load trees for commits
  treewide: replace maybe_tree with accessor methods
  commit: create get_commit_tree() method
  treewide: rename tree to maybe_tree

1 files changed, 4 insertions, 4 deletions

diff --git a/revision.c b/revision.c
index 1cff118..4e0e193 100644
--- a/revision.c
+++ b/revision.c
@@ -441,8 +441,8 @@ static void file_change(struct diff_options *options,
 static int rev_compare_tree(struct rev_info *revs,
 			    struct commit *parent, struct commit *commit)
 {
-	struct tree *t1 = parent->tree;
-	struct tree *t2 = commit->tree;
+	struct tree *t1 = get_commit_tree(parent);
+	struct tree *t2 = get_commit_tree(commit);
 
 	if (!t1)
 		return REV_TREE_NEW;
@@ -478,7 +478,7 @@ static int rev_compare_tree(struct rev_info *revs,
 static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
 {
 	int retval;
-	struct tree *t1 = commit->tree;
+	struct tree *t1 = get_commit_tree(commit);
 
 	if (!t1)
 		return 0;
@@ -616,7 +616,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
 	if (!revs->prune)
 		return;
 
-	if (!commit->tree)
+	if (!get_commit_tree(commit))
 		return;
 
 	if (!commit->parents) {