void cache_tree_invalidate_path(struct index_state *, const char *);
struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *);
+int cache_tree_subtree_pos(struct cache_tree *it, const char *path, int pathlen);
+
void cache_tree_write(struct strbuf *, struct cache_tree *root);
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);