forked from s444420/AL-2020
97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
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from __future__ import absolute_import
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import sys
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from pip._internal.cache import WheelCache
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from pip._internal.cli.base_command import Command
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from pip._internal.models.format_control import FormatControl
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from pip._internal.operations.freeze import freeze
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from pip._internal.utils.compat import stdlib_pkgs
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DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel'}
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class FreezeCommand(Command):
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"""
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Output installed packages in requirements format.
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packages are listed in a case-insensitive sorted order.
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"""
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name = 'freeze'
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usage = """
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%prog [options]"""
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summary = 'Output installed packages in requirements format.'
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log_streams = ("ext://sys.stderr", "ext://sys.stderr")
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def __init__(self, *args, **kw):
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super(FreezeCommand, 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="Use the order in the given requirements file and its "
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"comments when generating output. This option can be "
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"used multiple times.")
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self.cmd_opts.add_option(
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'-f', '--find-links',
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dest='find_links',
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action='append',
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default=[],
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metavar='URL',
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help='URL for finding packages, which will be added to the '
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'output.')
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self.cmd_opts.add_option(
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'-l', '--local',
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dest='local',
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action='store_true',
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default=False,
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help='If in a virtualenv that has global access, do not output '
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'globally-installed packages.')
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self.cmd_opts.add_option(
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'--user',
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dest='user',
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action='store_true',
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default=False,
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help='Only output packages installed in user-site.')
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self.cmd_opts.add_option(
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'--all',
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dest='freeze_all',
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action='store_true',
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help='Do not skip these packages in the output:'
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' %s' % ', '.join(DEV_PKGS))
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self.cmd_opts.add_option(
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'--exclude-editable',
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dest='exclude_editable',
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action='store_true',
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help='Exclude editable package from output.')
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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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format_control = FormatControl(set(), set())
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wheel_cache = WheelCache(options.cache_dir, format_control)
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skip = set(stdlib_pkgs)
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if not options.freeze_all:
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skip.update(DEV_PKGS)
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freeze_kwargs = dict(
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requirement=options.requirements,
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find_links=options.find_links,
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local_only=options.local,
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user_only=options.user,
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skip_regex=options.skip_requirements_regex,
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isolated=options.isolated_mode,
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wheel_cache=wheel_cache,
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skip=skip,
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exclude_editable=options.exclude_editable,
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)
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try:
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for line in freeze(**freeze_kwargs):
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sys.stdout.write(line + '\n')
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finally:
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wheel_cache.cleanup()
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