diff options
Diffstat (limited to 'jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_uninstall.py')
| -rw-r--r-- | jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_uninstall.py | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_uninstall.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_uninstall.py deleted file mode 100644 index 6b4f4e1..0000000 --- a/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_uninstall.py +++ /dev/null @@ -1,203 +0,0 @@ -import imp -import os -import sys -import tempfile - -from pip.backwardcompat import uses_pycache, b -from pip.exceptions import UninstallationError -from pip.log import logger -from pip.util import (rmtree, ask, is_local, dist_is_local, renames, - normalize_path) - - -class UninstallPathSet(object): - """A set of file paths to be removed in the uninstallation of a - requirement.""" - def __init__(self, dist): - self.paths = set() - self._refuse = set() - self.pth = {} - self.dist = dist - self.save_dir = None - self._moved_paths = [] - - def _permitted(self, path): - """ - Return True if the given path is one we are permitted to - remove/modify, False otherwise. - - """ - return is_local(path) - - def _can_uninstall(self): - if not dist_is_local(self.dist): - logger.notify( - "Not uninstalling %s at %s, outside environment %s" % - ( - self.dist.project_name, - normalize_path(self.dist.location), - sys.prefix - ), - ) - return False - return True - - def add(self, path): - path = normalize_path(path) - if not os.path.exists(path): - return - if self._permitted(path): - self.paths.add(path) - else: - self._refuse.add(path) - - # __pycache__ files can show up after 'installed-files.txt' is created, - # due to imports - if os.path.splitext(path)[1] == '.py' and uses_pycache: - self.add(imp.cache_from_source(path)) - - def add_pth(self, pth_file, entry): - pth_file = normalize_path(pth_file) - if self._permitted(pth_file): - if pth_file not in self.pth: - self.pth[pth_file] = UninstallPthEntries(pth_file) - self.pth[pth_file].add(entry) - else: - self._refuse.add(pth_file) - - def compact(self, paths): - """Compact a path set to contain the minimal number of paths - necessary to contain all paths in the set. If /a/path/ and - /a/path/to/a/file.txt are both in the set, leave only the - shorter path.""" - short_paths = set() - for path in sorted(paths, key=len): - if not any([ - (path.startswith(shortpath) and - path[len(shortpath.rstrip(os.path.sep))] == os.path.sep) - for shortpath in short_paths]): - short_paths.add(path) - return short_paths - - def _stash(self, path): - return os.path.join( - self.save_dir, os.path.splitdrive(path)[1].lstrip(os.path.sep)) - - def remove(self, auto_confirm=False): - """Remove paths in ``self.paths`` with confirmation (unless - ``auto_confirm`` is True).""" - if not self._can_uninstall(): - return - if not self.paths: - logger.notify( - "Can't uninstall '%s'. No files were found to uninstall." % - self.dist.project_name - ) - return - logger.notify('Uninstalling %s:' % self.dist.project_name) - logger.indent += 2 - paths = sorted(self.compact(self.paths)) - try: - if auto_confirm: - response = 'y' - else: - for path in paths: - logger.notify(path) - response = ask('Proceed (y/n)? ', ('y', 'n')) - if self._refuse: - logger.notify('Not removing or modifying (outside of prefix):') - for path in self.compact(self._refuse): - logger.notify(path) - if response == 'y': - self.save_dir = tempfile.mkdtemp(suffix='-uninstall', - prefix='pip-') - for path in paths: - new_path = self._stash(path) - logger.info('Removing file or directory %s' % path) - self._moved_paths.append(path) - renames(path, new_path) - for pth in self.pth.values(): - pth.remove() - logger.notify( - 'Successfully uninstalled %s' % self.dist.project_name - ) - - finally: - logger.indent -= 2 - - def rollback(self): - """Rollback the changes previously made by remove().""" - if self.save_dir is None: - logger.error( - "Can't roll back %s; was not uninstalled" % - self.dist.project_name - ) - return False - logger.notify('Rolling back uninstall of %s' % self.dist.project_name) - for path in self._moved_paths: - tmp_path = self._stash(path) - logger.info('Replacing %s' % path) - renames(tmp_path, path) - for pth in self.pth: - pth.rollback() - - def commit(self): - """Remove temporary save dir: rollback will no longer be possible.""" - if self.save_dir is not None: - rmtree(self.save_dir) - self.save_dir = None - self._moved_paths = [] - - -class UninstallPthEntries(object): - def __init__(self, pth_file): - if not os.path.isfile(pth_file): - raise UninstallationError( - "Cannot remove entries from nonexistent file %s" % pth_file - ) - self.file = pth_file - self.entries = set() - self._saved_lines = None - - def add(self, entry): - entry = os.path.normcase(entry) - # On Windows, os.path.normcase converts the entry to use - # backslashes. This is correct for entries that describe absolute - # paths outside of site-packages, but all the others use forward - # slashes. - if sys.platform == 'win32' and not os.path.splitdrive(entry)[0]: - entry = entry.replace('\\', '/') - self.entries.add(entry) - - def remove(self): - logger.info('Removing pth entries from %s:' % self.file) - fh = open(self.file, 'rb') - # windows uses '\r\n' with py3k, but uses '\n' with py2.x - lines = fh.readlines() - self._saved_lines = lines - fh.close() - if any(b('\r\n') in line for line in lines): - endline = '\r\n' - else: - endline = '\n' - for entry in self.entries: - try: - logger.info('Removing entry: %s' % entry) - lines.remove(b(entry + endline)) - except ValueError: - pass - fh = open(self.file, 'wb') - fh.writelines(lines) - fh.close() - - def rollback(self): - if self._saved_lines is None: - logger.error( - 'Cannot roll back changes to %s, none were made' % self.file - ) - return False - logger.info('Rolling %s back to previous state' % self.file) - fh = open(self.file, 'wb') - fh.writelines(self._saved_lines) - fh.close() - return True |