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77 lines
2.8 KiB
77 lines
2.8 KiB
6 years ago
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from __future__ import absolute_import
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import pip
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from pip.wheel import WheelCache
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from pip.req import InstallRequirement, RequirementSet, parse_requirements
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from pip.basecommand import Command
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from pip.exceptions import InstallationError
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class UninstallCommand(Command):
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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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name = 'uninstall'
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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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summary = 'Uninstall packages.'
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def __init__(self, *args, **kw):
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super(UninstallCommand, self).__init__(*args, **kw)
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self.cmd_opts.add_option(
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'-r', '--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='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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self.cmd_opts.add_option(
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'-y', '--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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self.parser.insert_option_group(0, self.cmd_opts)
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def run(self, options, args):
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with self._build_session(options) as session:
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format_control = pip.index.FormatControl(set(), set())
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wheel_cache = WheelCache(options.cache_dir, format_control)
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requirement_set = RequirementSet(
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build_dir=None,
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src_dir=None,
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download_dir=None,
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isolated=options.isolated_mode,
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session=session,
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wheel_cache=wheel_cache,
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)
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for name in args:
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requirement_set.add_requirement(
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InstallRequirement.from_line(
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name, isolated=options.isolated_mode,
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wheel_cache=wheel_cache
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)
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)
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for filename in options.requirements:
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for req in parse_requirements(
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filename,
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options=options,
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session=session,
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wheel_cache=wheel_cache):
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requirement_set.add_requirement(req)
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if not requirement_set.has_requirements:
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raise InstallationError(
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'You must give at least one requirement to %(name)s (see '
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'"pip help %(name)s")' % dict(name=self.name)
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)
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requirement_set.uninstall(auto_confirm=options.yes)
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