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- from __future__ import absolute_import
-
- import sys
-
- import pip
- from pip.basecommand import Command
- from pip.operations.freeze import freeze
- from pip.wheel import WheelCache
-
-
- class FreezeCommand(Command):
- """
- Output installed packages in requirements format.
-
- packages are listed in a case-insensitive sorted order.
- """
- name = 'freeze'
- usage = """
- %prog [options]"""
- summary = 'Output installed packages in requirements format.'
- log_streams = ("ext://sys.stderr", "ext://sys.stderr")
-
- def __init__(self, *args, **kw):
- super(FreezeCommand, self).__init__(*args, **kw)
-
- self.cmd_opts.add_option(
- '-r', '--requirement',
- dest='requirement',
- action='store',
- default=None,
- metavar='file',
- help="Use the order in the given requirements file and its "
- "comments when generating output.")
- self.cmd_opts.add_option(
- '-f', '--find-links',
- dest='find_links',
- action='append',
- default=[],
- metavar='URL',
- help='URL for finding packages, which will be added to the '
- 'output.')
- self.cmd_opts.add_option(
- '-l', '--local',
- dest='local',
- action='store_true',
- default=False,
- help='If in a virtualenv that has global access, do not output '
- 'globally-installed packages.')
- self.cmd_opts.add_option(
- '--user',
- dest='user',
- action='store_true',
- default=False,
- help='Only output packages installed in user-site.')
-
- self.parser.insert_option_group(0, self.cmd_opts)
-
- def run(self, options, args):
- format_control = pip.index.FormatControl(set(), set())
- wheel_cache = WheelCache(options.cache_dir, format_control)
- freeze_kwargs = dict(
- requirement=options.requirement,
- find_links=options.find_links,
- local_only=options.local,
- user_only=options.user,
- skip_regex=options.skip_requirements_regex,
- isolated=options.isolated_mode,
- wheel_cache=wheel_cache)
-
- for line in freeze(**freeze_kwargs):
- sys.stdout.write(line + '\n')
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