142 lines
4.9 KiB
Python
142 lines
4.9 KiB
Python
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import logging
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import os
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from optparse import Values
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from typing import List
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from pip._internal.cli import cmdoptions
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from pip._internal.cli.cmdoptions import make_target_python
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from pip._internal.cli.req_command import RequirementCommand, with_cleanup
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from pip._internal.cli.status_codes import SUCCESS
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from pip._internal.req.req_tracker import get_requirement_tracker
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from pip._internal.utils.misc import ensure_dir, normalize_path, write_output
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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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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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def add_options(self):
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# type: () -> None
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self.cmd_opts.add_option(cmdoptions.constraints())
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self.cmd_opts.add_option(cmdoptions.requirements())
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self.cmd_opts.add_option(cmdoptions.build_dir())
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self.cmd_opts.add_option(cmdoptions.no_deps())
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self.cmd_opts.add_option(cmdoptions.global_options())
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self.cmd_opts.add_option(cmdoptions.no_binary())
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self.cmd_opts.add_option(cmdoptions.only_binary())
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self.cmd_opts.add_option(cmdoptions.prefer_binary())
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self.cmd_opts.add_option(cmdoptions.src())
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self.cmd_opts.add_option(cmdoptions.pre())
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self.cmd_opts.add_option(cmdoptions.require_hashes())
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self.cmd_opts.add_option(cmdoptions.progress_bar())
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self.cmd_opts.add_option(cmdoptions.no_build_isolation())
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self.cmd_opts.add_option(cmdoptions.use_pep517())
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self.cmd_opts.add_option(cmdoptions.no_use_pep517())
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self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
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self.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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cmdoptions.add_target_python_options(self.cmd_opts)
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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, self.cmd_opts)
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@with_cleanup
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def run(self, options, args):
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# type: (Values, List[str]) -> int
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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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cmdoptions.check_dist_restriction(options)
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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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session = self.get_default_session(options)
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target_python = make_target_python(options)
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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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target_python=target_python,
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ignore_requires_python=options.ignore_requires_python,
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)
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req_tracker = self.enter_context(get_requirement_tracker())
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directory = TempDirectory(
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delete=not options.no_clean,
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kind="download",
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globally_managed=True,
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)
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reqs = self.get_requirements(args, options, finder, session)
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preparer = self.make_requirement_preparer(
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temp_build_dir=directory,
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options=options,
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req_tracker=req_tracker,
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session=session,
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finder=finder,
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download_dir=options.download_dir,
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use_user_site=False,
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)
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resolver = self.make_resolver(
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preparer=preparer,
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finder=finder,
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options=options,
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ignore_requires_python=options.ignore_requires_python,
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py_version_info=options.python_version,
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)
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self.trace_basic_info(finder)
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requirement_set = resolver.resolve(
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reqs, check_supported_wheels=True
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)
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downloaded = [] # type: List[str]
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for req in requirement_set.requirements.values():
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if req.satisfied_by is None:
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assert req.name is not None
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preparer.save_linked_requirement(req)
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downloaded.append(req.name)
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if downloaded:
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write_output('Successfully downloaded %s', ' '.join(downloaded))
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return SUCCESS
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