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| import logging | |
| import os | |
| from optparse import Values | |
| from typing import List | |
| from pip._internal.cli import cmdoptions | |
| from pip._internal.cli.cmdoptions import make_target_python | |
| from pip._internal.cli.req_command import RequirementCommand, with_cleanup | |
| from pip._internal.cli.status_codes import SUCCESS | |
| from pip._internal.req.req_tracker import get_requirement_tracker | |
| from pip._internal.utils.misc import ensure_dir, normalize_path, write_output | |
| from pip._internal.utils.temp_dir import TempDirectory | |
| logger = logging.getLogger(__name__) | |
| class DownloadCommand(RequirementCommand): | |
| """ | |
| Download packages from: | |
| - PyPI (and other indexes) using requirement specifiers. | |
| - VCS project urls. | |
| - Local project directories. | |
| - Local or remote source archives. | |
| pip also supports downloading from "requirements files", which provide | |
| an easy way to specify a whole environment to be downloaded. | |
| """ | |
| usage = """ | |
| %prog [options] <requirement specifier> [package-index-options] ... | |
| %prog [options] -r <requirements file> [package-index-options] ... | |
| %prog [options] <vcs project url> ... | |
| %prog [options] <local project path> ... | |
| %prog [options] <archive url/path> ...""" | |
| def add_options(self) -> None: | |
| self.cmd_opts.add_option(cmdoptions.constraints()) | |
| self.cmd_opts.add_option(cmdoptions.requirements()) | |
| self.cmd_opts.add_option(cmdoptions.build_dir()) | |
| self.cmd_opts.add_option(cmdoptions.no_deps()) | |
| self.cmd_opts.add_option(cmdoptions.global_options()) | |
| self.cmd_opts.add_option(cmdoptions.no_binary()) | |
| self.cmd_opts.add_option(cmdoptions.only_binary()) | |
| self.cmd_opts.add_option(cmdoptions.prefer_binary()) | |
| self.cmd_opts.add_option(cmdoptions.src()) | |
| self.cmd_opts.add_option(cmdoptions.pre()) | |
| self.cmd_opts.add_option(cmdoptions.require_hashes()) | |
| self.cmd_opts.add_option(cmdoptions.progress_bar()) | |
| self.cmd_opts.add_option(cmdoptions.no_build_isolation()) | |
| self.cmd_opts.add_option(cmdoptions.use_pep517()) | |
| self.cmd_opts.add_option(cmdoptions.no_use_pep517()) | |
| self.cmd_opts.add_option(cmdoptions.ignore_requires_python()) | |
| self.cmd_opts.add_option( | |
| '-d', '--dest', '--destination-dir', '--destination-directory', | |
| dest='download_dir', | |
| metavar='dir', | |
| default=os.curdir, | |
| help=("Download packages into <dir>."), | |
| ) | |
| cmdoptions.add_target_python_options(self.cmd_opts) | |
| index_opts = cmdoptions.make_option_group( | |
| cmdoptions.index_group, | |
| self.parser, | |
| ) | |
| self.parser.insert_option_group(0, index_opts) | |
| self.parser.insert_option_group(0, self.cmd_opts) | |
| def run(self, options: Values, args: List[str]) -> int: | |
| options.ignore_installed = True | |
| # editable doesn't really make sense for `pip download`, but the bowels | |
| # of the RequirementSet code require that property. | |
| options.editables = [] | |
| cmdoptions.check_dist_restriction(options) | |
| options.download_dir = normalize_path(options.download_dir) | |
| ensure_dir(options.download_dir) | |
| session = self.get_default_session(options) | |
| target_python = make_target_python(options) | |
| finder = self._build_package_finder( | |
| options=options, | |
| session=session, | |
| target_python=target_python, | |
| ignore_requires_python=options.ignore_requires_python, | |
| ) | |
| req_tracker = self.enter_context(get_requirement_tracker()) | |
| directory = TempDirectory( | |
| delete=not options.no_clean, | |
| kind="download", | |
| globally_managed=True, | |
| ) | |
| reqs = self.get_requirements(args, options, finder, session) | |
| preparer = self.make_requirement_preparer( | |
| temp_build_dir=directory, | |
| options=options, | |
| req_tracker=req_tracker, | |
| session=session, | |
| finder=finder, | |
| download_dir=options.download_dir, | |
| use_user_site=False, | |
| ) | |
| resolver = self.make_resolver( | |
| preparer=preparer, | |
| finder=finder, | |
| options=options, | |
| ignore_requires_python=options.ignore_requires_python, | |
| py_version_info=options.python_version, | |
| ) | |
| self.trace_basic_info(finder) | |
| requirement_set = resolver.resolve( | |
| reqs, check_supported_wheels=True | |
| ) | |
| downloaded: List[str] = [] | |
| for req in requirement_set.requirements.values(): | |
| if req.satisfied_by is None: | |
| assert req.name is not None | |
| preparer.save_linked_requirement(req) | |
| downloaded.append(req.name) | |
| if downloaded: | |
| write_output('Successfully downloaded %s', ' '.join(downloaded)) | |
| return SUCCESS | |