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from __future__ import absolute_import
import logging
import os
from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import RequirementCommand
from pip._internal.cli.cmdoptions import make_target_python
from pip._internal.legacy_resolve import Resolver
from pip._internal.operations.prepare import RequirementPreparer
from pip._internal.req import RequirementSet
from pip._internal.req.req_tracker import RequirementTracker
from pip._internal.utils.filesystem import check_path_owner
from pip._internal.utils.misc import ensure_dir, normalize_path
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.
"""
name = 'download'
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> ..."""
summary = 'Download packages.'
def __init__(self, *args, **kw):
super(DownloadCommand, self).__init__(*args, **kw)
cmd_opts = self.cmd_opts
cmd_opts.add_option(cmdoptions.constraints())
cmd_opts.add_option(cmdoptions.requirements())
cmd_opts.add_option(cmdoptions.build_dir())
cmd_opts.add_option(cmdoptions.no_deps())
cmd_opts.add_option(cmdoptions.global_options())
cmd_opts.add_option(cmdoptions.no_binary())
cmd_opts.add_option(cmdoptions.only_binary())
cmd_opts.add_option(cmdoptions.prefer_binary())
cmd_opts.add_option(cmdoptions.src())
cmd_opts.add_option(cmdoptions.pre())
cmd_opts.add_option(cmdoptions.no_clean())
cmd_opts.add_option(cmdoptions.require_hashes())
cmd_opts.add_option(cmdoptions.progress_bar())
cmd_opts.add_option(cmdoptions.no_build_isolation())
cmd_opts.add_option(cmdoptions.use_pep517())
cmd_opts.add_option(cmdoptions.no_use_pep517())
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(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, cmd_opts)
def run(self, options, args):
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.src_dir = os.path.abspath(options.src_dir)
options.download_dir = normalize_path(options.download_dir)
ensure_dir(options.download_dir)
with self._build_session(options) as session:
target_python = make_target_python(options)
finder = self._build_package_finder(
options=options,
session=session,
target_python=target_python,
)
build_delete = (not (options.no_clean or options.build_dir))
if options.cache_dir and not check_path_owner(options.cache_dir):
logger.warning(
"The directory '%s' or its parent directory is not owned "
"by the current user and caching wheels has been "
"disabled. check the permissions and owner of that "
"directory. If executing pip with sudo, you may want "
"sudo's -H flag.",
options.cache_dir,
)
options.cache_dir = None
with RequirementTracker() as req_tracker, TempDirectory(
options.build_dir, delete=build_delete, kind="download"
) as directory:
requirement_set = RequirementSet(
require_hashes=options.require_hashes,
)
self.populate_requirement_set(
requirement_set,
args,
options,
finder,
session,
self.name,
None
)
preparer = RequirementPreparer(
build_dir=directory.path,
src_dir=options.src_dir,
download_dir=options.download_dir,
wheel_download_dir=None,
progress_bar=options.progress_bar,
build_isolation=options.build_isolation,
req_tracker=req_tracker,
)
resolver = Resolver(
preparer=preparer,
finder=finder,
session=session,
wheel_cache=None,
use_user_site=False,
upgrade_strategy="to-satisfy-only",
force_reinstall=False,
ignore_dependencies=options.ignore_dependencies,
py_version_info=options.python_version,
ignore_requires_python=False,
ignore_installed=True,
isolated=options.isolated_mode,
)
resolver.resolve(requirement_set)
downloaded = ' '.join([
req.name for req in requirement_set.successfully_downloaded
])
if downloaded:
logger.info('Successfully downloaded %s', downloaded)
# Clean up
if not options.no_clean:
requirement_set.cleanup_files()
return requirement_set
|
