[PATCH v3 11/33] commit.c: add repo_get_commit_tree()

[Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>]

Remove the implicit dependency on the_repository in this function.
It will be used in sha1-name.c functions when they are updated to take
any 'struct repository'. get_commit_tree() remains as a compat wrapper,
to be slowly replaced later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 commit.c                        | 5 +++--
 commit.h                        | 5 +++--
 contrib/coccinelle/commit.cocci | 7 ++++---
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/commit.c b/commit.c
index a5333c7ac6..f0a5506f04 100644
--- a/commit.c
+++ b/commit.c
@@ -340,7 +340,8 @@ void free_commit_buffer(struct parsed_object_pool *pool, struct commit *commit)
 	}
 }
 
-struct tree *get_commit_tree(const struct commit *commit)
+struct tree *repo_get_commit_tree(struct repository *r,
+				  const struct commit *commit)
 {
 	if (commit->maybe_tree || !commit->object.parsed)
 		return commit->maybe_tree;
@@ -348,7 +349,7 @@ struct tree *get_commit_tree(const struct commit *commit)
 	if (commit->graph_pos == COMMIT_NOT_FROM_GRAPH)
 		BUG("commit has NULL tree, but was not loaded from commit-graph");
 
-	return get_commit_tree_in_graph(the_repository, commit);
+	return get_commit_tree_in_graph(r, commit);
 }
 
 struct object_id *get_commit_tree_oid(const struct commit *commit)
diff --git a/commit.h b/commit.h
index 42728c2906..f1aa4c0472 100644
--- a/commit.h
+++ b/commit.h
@@ -32,7 +32,7 @@ struct commit {
 
 	/*
 	 * If the commit is loaded from the commit-graph file, then this
-	 * member may be NULL. Only access it through get_commit_tree()
+	 * member may be NULL. Only access it through repo_get_commit_tree()
 	 * or get_commit_tree_oid().
 	 */
 	struct tree *maybe_tree;
@@ -143,7 +143,8 @@ void repo_unuse_commit_buffer(struct repository *r,
  */
 void free_commit_buffer(struct parsed_object_pool *pool, struct commit *);
 
-struct tree *get_commit_tree(const struct commit *);
+struct tree *repo_get_commit_tree(struct repository *, const struct commit *);
+#define get_commit_tree(c) repo_get_commit_tree(the_repository, c)
 struct object_id *get_commit_tree_oid(const struct commit *);
 
 /*
diff --git a/contrib/coccinelle/commit.cocci b/contrib/coccinelle/commit.cocci
index c49aa558f0..57c8f71479 100644
--- a/contrib/coccinelle/commit.cocci
+++ b/contrib/coccinelle/commit.cocci
@@ -12,17 +12,18 @@ expression c;
 
 // These excluded functions must access c->maybe_tree direcly.
 @@
-identifier f !~ "^(get_commit_tree|get_commit_tree_in_graph_one|load_tree_for_commit)$";
+identifier f !~ "^(repo_get_commit_tree|get_commit_tree_in_graph_one|load_tree_for_commit)$";
 expression c;
 @@
   f(...) {<...
 - c->maybe_tree
-+ get_commit_tree(c)
++ repo_get_commit_tree(the_repository, c)
   ...>}
 
 @@
 expression c;
+expression r;
 expression s;
 @@
-- get_commit_tree(c) = s
+- repo_get_commit_tree(r, c) = s
 + c->maybe_tree = s
-- 
2.21.0.479.g47ac719cd3