treewide: replace maybe_tree with accessor methods

diff --git a/commit.c b/commit.c
index 3e39c86abf885f82ed70cbd5b8212a5436820952..aea2ca1f8ba307f540f17d4f4b93071f9eb45b5f 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -296,6 +296,16 @@ void free_commit_buffer(struct commit *commit)
        }
 }
 
+struct tree *get_commit_tree(const struct commit *commit)
+{
+       return commit->maybe_tree;
+}
+
+struct object_id *get_commit_tree_oid(const struct commit *commit)
+{
+       return &get_commit_tree(commit)->object.oid;
+}
+
 const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep)
 {
        struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
@@ -335,7 +345,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
        if (get_sha1_hex(bufptr + 5, parent.hash) < 0)
                return error("bad tree pointer in commit %s",
                             oid_to_hex(&item->object.oid));
-       item->tree = lookup_tree(&parent);
+       item->maybe_tree = lookup_tree(&parent);
        bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */
        pptr = &item->parents;