diff options
author | Roger Gonzalez <rogergonzalez21@gmail.com> | 2020-04-08 10:38:14 -0300 |
---|---|---|
committer | Roger Gonzalez <rogergonzalez21@gmail.com> | 2020-04-08 10:38:14 -0300 |
commit | 5f0f2f90361a4c0a76478b288998595fc3ddebd2 (patch) | |
tree | fba8d30e376187e1b0b441314497bb1a70989f08 /.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py | |
parent | 47e1414d1be0069b158d0d0718988d72b0fb5d0d (diff) |
Added my old emacs config
Diffstat (limited to '.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py')
-rw-r--r-- | .emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py new file mode 100644 index 00000000..e36a3f6b --- /dev/null +++ b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/req/req_tracker.py @@ -0,0 +1,96 @@ +from __future__ import absolute_import + +import contextlib +import errno +import hashlib +import logging +import os + +from pip._internal.utils.temp_dir import TempDirectory +from pip._internal.utils.typing import MYPY_CHECK_RUNNING + +if MYPY_CHECK_RUNNING: + from types import TracebackType + from typing import Iterator, Optional, Set, Type + from pip._internal.req.req_install import InstallRequirement + from pip._internal.models.link import Link + +logger = logging.getLogger(__name__) + + +class RequirementTracker(object): + + def __init__(self): + # type: () -> None + self._root = os.environ.get('PIP_REQ_TRACKER') + if self._root is None: + self._temp_dir = TempDirectory(delete=False, kind='req-tracker') + self._temp_dir.create() + self._root = os.environ['PIP_REQ_TRACKER'] = self._temp_dir.path + logger.debug('Created requirements tracker %r', self._root) + else: + self._temp_dir = None + logger.debug('Re-using requirements tracker %r', self._root) + self._entries = set() # type: Set[InstallRequirement] + + def __enter__(self): + # type: () -> RequirementTracker + return self + + def __exit__( + self, + exc_type, # type: Optional[Type[BaseException]] + exc_val, # type: Optional[BaseException] + exc_tb # type: Optional[TracebackType] + ): + # type: (...) -> None + self.cleanup() + + def _entry_path(self, link): + # type: (Link) -> str + hashed = hashlib.sha224(link.url_without_fragment.encode()).hexdigest() + return os.path.join(self._root, hashed) + + def add(self, req): + # type: (InstallRequirement) -> None + link = req.link + info = str(req) + entry_path = self._entry_path(link) + try: + with open(entry_path) as fp: + # Error, these's already a build in progress. + raise LookupError('%s is already being built: %s' + % (link, fp.read())) + except IOError as e: + if e.errno != errno.ENOENT: + raise + assert req not in self._entries + with open(entry_path, 'w') as fp: + fp.write(info) + self._entries.add(req) + logger.debug('Added %s to build tracker %r', req, self._root) + + def remove(self, req): + # type: (InstallRequirement) -> None + link = req.link + self._entries.remove(req) + os.unlink(self._entry_path(link)) + logger.debug('Removed %s from build tracker %r', req, self._root) + + def cleanup(self): + # type: () -> None + for req in set(self._entries): + self.remove(req) + remove = self._temp_dir is not None + if remove: + self._temp_dir.cleanup() + logger.debug('%s build tracker %r', + 'Removed' if remove else 'Cleaned', + self._root) + + @contextlib.contextmanager + def track(self, req): + # type: (InstallRequirement) -> Iterator[None] + self.add(req) + yield + self.remove(req) |