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