/** * {@inheritdoc} */ public function getDirectory($path, CommitInterface $commit = null) { if (!$commit) { $treeWalker = $this->getTreeWalker(); } else { $treeWalker = $this->treeManager->getTreeWalker($commit->getTree()); } $node = $treeWalker->walk($path); if ($node === null) { throw new DirectoryNotExistsException($path); } if ($node->getIsFile()) { throw new NotATreeException($path); } return $node; }