Viewing file:  read_only.py (1.01 KB) -rw-r--r--
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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):
raise RuntimeError(f"read-only app data directory {folder} does not exist")
super().__init__(folder)
self.lock = NoOpFileLock(folder)
def reset(self) -> None:
raise RuntimeError("read-only app data does not support reset")
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): # noqa: U100
raise NotImplementedError
class _PyInfoStoreDiskReadOnly(PyInfoStoreDisk):
def write(self, content): # noqa: U100
raise RuntimeError("read-only app data python info cannot be updated")
__all__ = [
"ReadOnlyAppData",
]
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