mirror of https://github.com/pypa/pip
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
from __future__ import absolute_import
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import logging
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import os.path
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import tempfile
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from pip._internal.utils.misc import rmtree
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logger = logging.getLogger(__name__)
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class TempDirectory(object):
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"""Helper class that owns and cleans up a temporary directory.
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This class can be used as a context manager or as an OO representation of a
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temporary directory.
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Attributes:
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path
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Location to the created temporary directory or None
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delete
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Whether the directory should be deleted when exiting
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(when used as a contextmanager)
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Methods:
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create()
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Creates a temporary directory and stores its path in the path
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attribute.
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cleanup()
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Deletes the temporary directory and sets path attribute to None
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When used as a context manager, a temporary directory is created on
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entering the context and, if the delete attribute is True, on exiting the
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context the created directory is deleted.
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"""
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def __init__(self, path=None, delete=None, kind="temp"):
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super(TempDirectory, self).__init__()
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if path is None and delete is None:
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# If we were not given an explicit directory, and we were not given
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# an explicit delete option, then we'll default to deleting.
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delete = True
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self.path = path
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self.delete = delete
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self.kind = kind
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def __repr__(self):
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return "<{} {!r}>".format(self.__class__.__name__, self.path)
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def __enter__(self):
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self.create()
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return self
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def __exit__(self, exc, value, tb):
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if self.delete:
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self.cleanup()
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def create(self):
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"""Create a temporary directory and store it's path in self.path
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"""
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if self.path is not None:
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logger.debug(
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"Skipped creation of temporary directory: {}".format(self.path)
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)
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return
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# We realpath here because some systems have their default tmpdir
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# symlinked to another directory. This tends to confuse build
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# scripts, so we canonicalize the path by traversing potential
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# symlinks here.
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self.path = os.path.realpath(
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tempfile.mkdtemp(prefix="pip-{}-".format(self.kind))
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)
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logger.debug("Created temporary directory: {}".format(self.path))
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def cleanup(self):
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"""Remove the temporary directory created and reset state
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"""
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if self.path is not None and os.path.exists(self.path):
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rmtree(self.path)
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self.path = None
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