177 lines
6.5 KiB
Python
177 lines
6.5 KiB
Python
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from __future__ import absolute_import
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import logging
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import os
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from pip._internal.cli import cmdoptions
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from pip._internal.cli.base_command import RequirementCommand
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from pip._internal.operations.prepare import RequirementPreparer
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from pip._internal.req import RequirementSet
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from pip._internal.req.req_tracker import RequirementTracker
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from pip._internal.resolve import Resolver
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from pip._internal.utils.filesystem import check_path_owner
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from pip._internal.utils.misc import ensure_dir, normalize_path
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from pip._internal.utils.temp_dir import TempDirectory
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logger = logging.getLogger(__name__)
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class DownloadCommand(RequirementCommand):
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"""
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Download packages from:
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- PyPI (and other indexes) using requirement specifiers.
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- VCS project urls.
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- Local project directories.
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- Local or remote source archives.
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pip also supports downloading from "requirements files", which provide
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an easy way to specify a whole environment to be downloaded.
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"""
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name = 'download'
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usage = """
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%prog [options] <requirement specifier> [package-index-options] ...
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%prog [options] -r <requirements file> [package-index-options] ...
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%prog [options] <vcs project url> ...
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%prog [options] <local project path> ...
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%prog [options] <archive url/path> ..."""
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summary = 'Download packages.'
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def __init__(self, *args, **kw):
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super(DownloadCommand, self).__init__(*args, **kw)
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cmd_opts = self.cmd_opts
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cmd_opts.add_option(cmdoptions.constraints())
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cmd_opts.add_option(cmdoptions.requirements())
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cmd_opts.add_option(cmdoptions.build_dir())
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cmd_opts.add_option(cmdoptions.no_deps())
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cmd_opts.add_option(cmdoptions.global_options())
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cmd_opts.add_option(cmdoptions.no_binary())
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cmd_opts.add_option(cmdoptions.only_binary())
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cmd_opts.add_option(cmdoptions.prefer_binary())
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cmd_opts.add_option(cmdoptions.src())
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cmd_opts.add_option(cmdoptions.pre())
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cmd_opts.add_option(cmdoptions.no_clean())
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cmd_opts.add_option(cmdoptions.require_hashes())
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cmd_opts.add_option(cmdoptions.progress_bar())
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cmd_opts.add_option(cmdoptions.no_build_isolation())
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cmd_opts.add_option(cmdoptions.use_pep517())
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cmd_opts.add_option(cmdoptions.no_use_pep517())
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cmd_opts.add_option(
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'-d', '--dest', '--destination-dir', '--destination-directory',
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dest='download_dir',
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metavar='dir',
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default=os.curdir,
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help=("Download packages into <dir>."),
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)
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cmd_opts.add_option(cmdoptions.platform())
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cmd_opts.add_option(cmdoptions.python_version())
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cmd_opts.add_option(cmdoptions.implementation())
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cmd_opts.add_option(cmdoptions.abi())
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index_opts = cmdoptions.make_option_group(
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cmdoptions.index_group,
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self.parser,
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)
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self.parser.insert_option_group(0, index_opts)
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self.parser.insert_option_group(0, cmd_opts)
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def run(self, options, args):
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options.ignore_installed = True
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# editable doesn't really make sense for `pip download`, but the bowels
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# of the RequirementSet code require that property.
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options.editables = []
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if options.python_version:
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python_versions = [options.python_version]
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else:
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python_versions = None
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cmdoptions.check_dist_restriction(options)
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options.src_dir = os.path.abspath(options.src_dir)
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options.download_dir = normalize_path(options.download_dir)
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ensure_dir(options.download_dir)
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with self._build_session(options) as session:
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finder = self._build_package_finder(
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options=options,
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session=session,
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platform=options.platform,
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python_versions=python_versions,
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abi=options.abi,
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implementation=options.implementation,
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)
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build_delete = (not (options.no_clean or options.build_dir))
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if options.cache_dir and not check_path_owner(options.cache_dir):
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logger.warning(
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"The directory '%s' or its parent directory is not owned "
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"by the current user and caching wheels has been "
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"disabled. check the permissions and owner of that "
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"directory. If executing pip with sudo, you may want "
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"sudo's -H flag.",
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options.cache_dir,
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)
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options.cache_dir = None
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with RequirementTracker() as req_tracker, TempDirectory(
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options.build_dir, delete=build_delete, kind="download"
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) as directory:
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requirement_set = RequirementSet(
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require_hashes=options.require_hashes,
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)
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self.populate_requirement_set(
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requirement_set,
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args,
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options,
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finder,
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session,
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self.name,
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None
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)
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preparer = RequirementPreparer(
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build_dir=directory.path,
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src_dir=options.src_dir,
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download_dir=options.download_dir,
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wheel_download_dir=None,
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progress_bar=options.progress_bar,
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build_isolation=options.build_isolation,
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req_tracker=req_tracker,
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)
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resolver = Resolver(
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preparer=preparer,
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finder=finder,
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session=session,
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wheel_cache=None,
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use_user_site=False,
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upgrade_strategy="to-satisfy-only",
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force_reinstall=False,
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ignore_dependencies=options.ignore_dependencies,
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ignore_requires_python=False,
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ignore_installed=True,
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isolated=options.isolated_mode,
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)
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resolver.resolve(requirement_set)
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downloaded = ' '.join([
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req.name for req in requirement_set.successfully_downloaded
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])
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if downloaded:
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logger.info('Successfully downloaded %s', downloaded)
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# Clean up
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if not options.no_clean:
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requirement_set.cleanup_files()
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return requirement_set
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