self._pytex_root_dir_type: PyTeXRootDirType = pytex_root_dir_type
self._root_dir: Path = {
    PyTeXRootDirType.BUILD: build_dir_spec.build_root,
    PyTeXRootDirType.PYTEX_SOURCE: build_dir_spec.source_root,
    PyTeXRootDirType.DOC: build_dir_spec.doc_root,
    PyTeXRootDirType.TEX_SOURCE: build_dir_spec.tex_root
}[self._pytex_root_dir_type]