from __future__ import annotations import os.path from virtualenv.util.lock import NoOpFileLock from .via_disk_folder import AppDataDiskFolder, PyInfoStoreDisk class ReadOnlyAppData(AppDataDiskFolder): can_update = False def __init__(self, folder: str) -> None: if not os.path.isdir(folder): msg = f"read-only app data directory {folder} does not exist" raise RuntimeError(msg) super().__init__(folder) self.lock = NoOpFileLock(folder) def reset(self) -> None: msg = "read-only app data does not support reset" raise RuntimeError(msg) def py_info_clear(self) -> None: raise NotImplementedError def py_info(self, path): return _PyInfoStoreDiskReadOnly(self.py_info_at, path) def embed_update_log(self, distribution, for_py_version): raise NotImplementedError class _PyInfoStoreDiskReadOnly(PyInfoStoreDisk): def write(self, content): # noqa: ARG002 msg = "read-only app data python info cannot be updated" raise RuntimeError(msg) __all__ = [ "ReadOnlyAppData", ]