Viewing file:  read_only.py (1006 B) -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): # type: (str) -> None
if not os.path.isdir(folder):
raise RuntimeError("read-only app data directory {} does not exist".format(folder))
self.lock = NoOpFileLock(folder)
def reset(self): # type: () -> None
raise RuntimeError("read-only app data does not support reset")
def py_info_clear(self): # type: () -> 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):
raise RuntimeError("read-only app data python info cannot be updated")
__all__ = ("ReadOnlyAppData",)
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