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106 lines
3.4 KiB
106 lines
3.4 KiB
3 years ago
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import logging
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from optparse import Values
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from typing import List
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from pip._vendor.packaging.utils import canonicalize_name
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from pip._internal.cli.base_command import Command
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from pip._internal.cli.req_command import SessionCommandMixin, warn_if_run_as_root
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from pip._internal.cli.status_codes import SUCCESS
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from pip._internal.exceptions import InstallationError
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from pip._internal.req import parse_requirements
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from pip._internal.req.constructors import (
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install_req_from_line,
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install_req_from_parsed_requirement,
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)
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from pip._internal.utils.misc import protect_pip_from_modification_on_windows
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logger = logging.getLogger(__name__)
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class UninstallCommand(Command, SessionCommandMixin):
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"""
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Uninstall packages.
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pip is able to uninstall most installed packages. Known exceptions are:
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- Pure distutils packages installed with ``python setup.py install``, which
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leave behind no metadata to determine what files were installed.
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- Script wrappers installed by ``python setup.py develop``.
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"""
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usage = """
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%prog [options] <package> ...
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%prog [options] -r <requirements file> ..."""
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def add_options(self) -> None:
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self.cmd_opts.add_option(
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"-r",
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"--requirement",
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dest="requirements",
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action="append",
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default=[],
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metavar="file",
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help=(
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"Uninstall all the packages listed in the given requirements "
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"file. This option can be used multiple times."
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),
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)
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self.cmd_opts.add_option(
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"-y",
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"--yes",
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dest="yes",
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action="store_true",
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help="Don't ask for confirmation of uninstall deletions.",
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)
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self.parser.insert_option_group(0, self.cmd_opts)
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def run(self, options: Values, args: List[str]) -> int:
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session = self.get_default_session(options)
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reqs_to_uninstall = {}
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for name in args:
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req = install_req_from_line(
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name,
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isolated=options.isolated_mode,
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)
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if req.name:
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reqs_to_uninstall[canonicalize_name(req.name)] = req
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else:
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logger.warning(
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"Invalid requirement: %r ignored -"
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" the uninstall command expects named"
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" requirements.",
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name,
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)
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for filename in options.requirements:
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for parsed_req in parse_requirements(
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filename, options=options, session=session
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):
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req = install_req_from_parsed_requirement(
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parsed_req, isolated=options.isolated_mode
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)
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if req.name:
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reqs_to_uninstall[canonicalize_name(req.name)] = req
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if not reqs_to_uninstall:
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raise InstallationError(
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f"You must give at least one requirement to {self.name} (see "
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f'"pip help {self.name}")'
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)
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protect_pip_from_modification_on_windows(
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modifying_pip="pip" in reqs_to_uninstall
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)
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for req in reqs_to_uninstall.values():
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uninstall_pathset = req.uninstall(
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auto_confirm=options.yes,
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verbose=self.verbosity > 0,
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)
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if uninstall_pathset:
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uninstall_pathset.commit()
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warn_if_run_as_root()
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return SUCCESS
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