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"""
Application data stored by virtualenv.
"""
from __future__ import annotations
from abc import ABCMeta, abstractmethod
from contextlib import contextmanager
from virtualenv.info import IS_ZIPAPP
class AppData(metaclass=ABCMeta):
"""Abstract storage interface for the virtualenv application"""
@abstractmethod
def close(self):
"""called before virtualenv exits"""
@abstractmethod
def reset(self):
"""called when the user passes in the reset app data"""
@abstractmethod
def py_info(self, path):
raise NotImplementedError
@abstractmethod
def py_info_clear(self):
raise NotImplementedError
@property
def can_update(self):
raise NotImplementedError
@abstractmethod
def embed_update_log(self, distribution, for_py_version):
raise NotImplementedError
@property
def house(self):
raise NotImplementedError
@property
def transient(self):
raise NotImplementedError
@abstractmethod
def wheel_image(self, for_py_version, name):
raise NotImplementedError
@contextmanager
def ensure_extracted(self, path, to_folder=None):
"""Some paths might be within the zipapp, unzip these to a path on the disk"""
if IS_ZIPAPP:
with self.extract(path, to_folder) as result:
yield result
else:
yield path
@abstractmethod
@contextmanager
def extract(self, path, to_folder):
raise NotImplementedError
@abstractmethod
@contextmanager
def locked(self, path):
raise NotImplementedError
class ContentStore(metaclass=ABCMeta):
@abstractmethod
def exists(self):
raise NotImplementedError
@abstractmethod
def read(self):
raise NotImplementedError
@abstractmethod
def write(self, content):
raise NotImplementedError
@abstractmethod
def remove(self):
raise NotImplementedError
@abstractmethod
@contextmanager
def locked(self):
pass
__all__ = [
"ContentStore",
"AppData",
]
|
