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456 lines
18 KiB
456 lines
18 KiB
6 years ago
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from __future__ import absolute_import
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import logging
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import operator
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import os
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import tempfile
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import shutil
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import warnings
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try:
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import wheel
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except ImportError:
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wheel = None
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from pip.req import RequirementSet
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from pip.basecommand import RequirementCommand
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from pip.locations import virtualenv_no_global, distutils_scheme
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from pip.exceptions import (
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InstallationError, CommandError, PreviousBuildDirError,
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)
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from pip import cmdoptions
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from pip.utils import ensure_dir, get_installed_version
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from pip.utils.build import BuildDirectory
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from pip.utils.deprecation import RemovedInPip10Warning
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from pip.utils.filesystem import check_path_owner
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from pip.wheel import WheelCache, WheelBuilder
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from pip.locations import running_under_virtualenv
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logger = logging.getLogger(__name__)
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class InstallCommand(RequirementCommand):
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"""
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Install 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 installing from "requirements files", which provide
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an easy way to specify a whole environment to be installed.
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"""
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name = 'install'
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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] [-e] <vcs project url> ...
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%prog [options] [-e] <local project path> ...
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%prog [options] <archive url/path> ..."""
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summary = 'Install packages.'
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def __init__(self, *args, **kw):
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super(InstallCommand, self).__init__(*args, **kw)
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default_user = True
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if running_under_virtualenv():
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default_user = False
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if os.geteuid() == 0:
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default_user = False
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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.editable())
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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(
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'-t', '--target',
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dest='target_dir',
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metavar='dir',
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default=None,
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help='Install packages into <dir>. '
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'By default this will not replace existing files/folders in '
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'<dir>. Use --upgrade to replace existing packages in <dir> '
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'with new versions.'
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)
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cmd_opts.add_option(
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'-d', '--download', '--download-dir', '--download-directory',
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dest='download_dir',
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metavar='dir',
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default=None,
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help=("Download packages into <dir> instead of installing them, "
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"regardless of what's already installed."),
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)
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cmd_opts.add_option(cmdoptions.src())
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cmd_opts.add_option(
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'-U', '--upgrade',
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dest='upgrade',
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action='store_true',
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help='Upgrade all specified packages to the newest available '
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'version. The handling of dependencies depends on the '
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'upgrade-strategy used.'
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)
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cmd_opts.add_option(
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'--upgrade-strategy',
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dest='upgrade_strategy',
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default='eager',
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choices=['only-if-needed', 'eager'],
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help='Determines how dependency upgrading should be handled. '
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'"eager" - dependencies are upgraded regardless of '
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'whether the currently installed version satisfies the '
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'requirements of the upgraded package(s). '
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'"only-if-needed" - are upgraded only when they do not '
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'satisfy the requirements of the upgraded package(s).'
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)
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cmd_opts.add_option(
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'--force-reinstall',
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dest='force_reinstall',
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action='store_true',
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help='When upgrading, reinstall all packages even if they are '
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'already up-to-date.')
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cmd_opts.add_option(
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'-I', '--ignore-installed',
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dest='ignore_installed',
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action='store_true',
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default=default_user,
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help='Ignore the installed packages (reinstalling instead).')
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cmd_opts.add_option(cmdoptions.ignore_requires_python())
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cmd_opts.add_option(cmdoptions.no_deps())
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cmd_opts.add_option(cmdoptions.install_options())
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cmd_opts.add_option(cmdoptions.global_options())
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cmd_opts.add_option(
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'--user',
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dest='use_user_site',
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action='store_true',
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default=default_user,
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help="Install to the Python user install directory for your "
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"platform. Typically ~/.local/, or %APPDATA%\Python on "
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"Windows. (See the Python documentation for site.USER_BASE "
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"for full details.) On Debian systems, this is the "
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"default when running outside of a virtual environment "
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"and not as root.")
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cmd_opts.add_option(
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'--system',
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dest='use_user_site',
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action='store_false',
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help="Install using the system scheme (overrides --user on "
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"Debian systems)")
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cmd_opts.add_option(
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'--egg',
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dest='as_egg',
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action='store_true',
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help="Install packages as eggs, not 'flat', like pip normally "
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"does. This option is not about installing *from* eggs. "
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"(WARNING: Because this option overrides pip's normal install"
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" logic, requirements files may not behave as expected.)")
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cmd_opts.add_option(
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'--root',
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dest='root_path',
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metavar='dir',
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default=None,
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help="Install everything relative to this alternate root "
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"directory.")
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cmd_opts.add_option(
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'--prefix',
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dest='prefix_path',
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metavar='dir',
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default=None,
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help="Installation prefix where lib, bin and other top-level "
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"folders are placed")
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cmd_opts.add_option(
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"--compile",
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action="store_true",
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dest="compile",
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default=True,
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help="Compile py files to pyc",
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)
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cmd_opts.add_option(
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"--no-compile",
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action="store_false",
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dest="compile",
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help="Do not compile py files to pyc",
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)
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cmd_opts.add_option(cmdoptions.use_wheel())
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cmd_opts.add_option(cmdoptions.no_use_wheel())
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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.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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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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cmdoptions.resolve_wheel_no_use_binary(options)
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cmdoptions.check_install_build_global(options)
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if options.as_egg:
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warnings.warn(
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"--egg has been deprecated and will be removed in the future. "
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"This flag is mutually exclusive with large parts of pip, and "
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"actually using it invalidates pip's ability to manage the "
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"installation process.",
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RemovedInPip10Warning,
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)
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if options.allow_external:
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warnings.warn(
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"--allow-external has been deprecated and will be removed in "
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"the future. Due to changes in the repository protocol, it no "
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"longer has any effect.",
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RemovedInPip10Warning,
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)
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if options.allow_all_external:
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warnings.warn(
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"--allow-all-external has been deprecated and will be removed "
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"in the future. Due to changes in the repository protocol, it "
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"no longer has any effect.",
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RemovedInPip10Warning,
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)
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if options.allow_unverified:
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warnings.warn(
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"--allow-unverified has been deprecated and will be removed "
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"in the future. Due to changes in the repository protocol, it "
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"no longer has any effect.",
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RemovedInPip10Warning,
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)
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if options.download_dir:
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warnings.warn(
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"pip install --download has been deprecated and will be "
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"removed in the future. Pip now has a download command that "
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"should be used instead.",
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RemovedInPip10Warning,
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)
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options.ignore_installed = True
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if options.build_dir:
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options.build_dir = os.path.abspath(options.build_dir)
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options.src_dir = os.path.abspath(options.src_dir)
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install_options = options.install_options or []
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if options.use_user_site:
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if options.prefix_path:
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raise CommandError(
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"Can not combine '--user' and '--prefix' as they imply "
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"different installation locations"
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)
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if virtualenv_no_global():
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raise InstallationError(
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"Can not perform a '--user' install. User site-packages "
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"are not visible in this virtualenv."
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)
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install_options.append('--user')
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install_options.append('--prefix=')
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temp_target_dir = None
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if options.target_dir:
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options.ignore_installed = True
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temp_target_dir = tempfile.mkdtemp()
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options.target_dir = os.path.abspath(options.target_dir)
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if (os.path.exists(options.target_dir) and not
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os.path.isdir(options.target_dir)):
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raise CommandError(
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"Target path exists but is not a directory, will not "
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"continue."
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)
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install_options.append('--home=' + temp_target_dir)
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global_options = options.global_options or []
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with self._build_session(options) as session:
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finder = self._build_package_finder(options, session)
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build_delete = (not (options.no_clean or options.build_dir))
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wheel_cache = WheelCache(options.cache_dir, options.format_control)
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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 BuildDirectory(options.build_dir,
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delete=build_delete) as build_dir:
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requirement_set = RequirementSet(
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build_dir=build_dir,
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src_dir=options.src_dir,
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download_dir=options.download_dir,
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upgrade=options.upgrade,
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upgrade_strategy=options.upgrade_strategy,
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as_egg=options.as_egg,
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ignore_installed=options.ignore_installed,
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ignore_dependencies=options.ignore_dependencies,
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ignore_requires_python=options.ignore_requires_python,
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force_reinstall=options.force_reinstall,
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use_user_site=options.use_user_site,
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target_dir=temp_target_dir,
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session=session,
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pycompile=options.compile,
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isolated=options.isolated_mode,
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wheel_cache=wheel_cache,
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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, args, options, finder, session, self.name,
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wheel_cache
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)
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if not requirement_set.has_requirements:
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return
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try:
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if (options.download_dir or not wheel or not
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options.cache_dir):
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# on -d don't do complex things like building
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# wheels, and don't try to build wheels when wheel is
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# not installed.
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requirement_set.prepare_files(finder)
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else:
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# build wheels before install.
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wb = WheelBuilder(
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requirement_set,
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finder,
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build_options=[],
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global_options=[],
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)
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# Ignore the result: a failed wheel will be
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# installed from the sdist/vcs whatever.
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wb.build(autobuilding=True)
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if not options.download_dir:
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requirement_set.install(
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install_options,
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global_options,
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root=options.root_path,
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prefix=options.prefix_path,
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)
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possible_lib_locations = get_lib_location_guesses(
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user=options.use_user_site,
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home=temp_target_dir,
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root=options.root_path,
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prefix=options.prefix_path,
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isolated=options.isolated_mode,
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)
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reqs = sorted(
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requirement_set.successfully_installed,
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key=operator.attrgetter('name'))
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items = []
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for req in reqs:
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item = req.name
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try:
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installed_version = get_installed_version(
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req.name, possible_lib_locations
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)
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if installed_version:
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item += '-' + installed_version
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except Exception:
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pass
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items.append(item)
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|
|
installed = ' '.join(items)
|
||
|
|
if installed:
|
||
|
|
logger.info('Successfully installed %s', installed)
|
||
|
|
else:
|
||
|
|
downloaded = ' '.join([
|
||
|
|
req.name
|
||
|
|
for req in requirement_set.successfully_downloaded
|
||
|
|
])
|
||
|
|
if downloaded:
|
||
|
|
logger.info(
|
||
|
|
'Successfully downloaded %s', downloaded
|
||
|
|
)
|
||
|
|
except PreviousBuildDirError:
|
||
|
|
options.no_clean = True
|
||
|
|
raise
|
||
|
|
finally:
|
||
|
|
# Clean up
|
||
|
|
if not options.no_clean:
|
||
|
|
requirement_set.cleanup_files()
|
||
|
|
|
||
|
|
if options.target_dir:
|
||
|
|
ensure_dir(options.target_dir)
|
||
|
|
|
||
|
|
# Checking both purelib and platlib directories for installed
|
||
|
|
# packages to be moved to target directory
|
||
|
|
lib_dir_list = []
|
||
|
|
|
||
|
|
purelib_dir = distutils_scheme('', home=temp_target_dir)['purelib']
|
||
|
|
platlib_dir = distutils_scheme('', home=temp_target_dir)['platlib']
|
||
|
|
|
||
|
|
if os.path.exists(purelib_dir):
|
||
|
|
lib_dir_list.append(purelib_dir)
|
||
|
|
if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
|
||
|
|
lib_dir_list.append(platlib_dir)
|
||
|
|
|
||
|
|
for lib_dir in lib_dir_list:
|
||
|
|
for item in os.listdir(lib_dir):
|
||
|
|
target_item_dir = os.path.join(options.target_dir, item)
|
||
|
|
if os.path.exists(target_item_dir):
|
||
|
|
if not options.upgrade:
|
||
|
|
logger.warning(
|
||
|
|
'Target directory %s already exists. Specify '
|
||
|
|
'--upgrade to force replacement.',
|
||
|
|
target_item_dir
|
||
|
|
)
|
||
|
|
continue
|
||
|
|
if os.path.islink(target_item_dir):
|
||
|
|
logger.warning(
|
||
|
|
'Target directory %s already exists and is '
|
||
|
|
'a link. Pip will not automatically replace '
|
||
|
|
'links, please remove if replacement is '
|
||
|
|
'desired.',
|
||
|
|
target_item_dir
|
||
|
|
)
|
||
|
|
continue
|
||
|
|
if os.path.isdir(target_item_dir):
|
||
|
|
shutil.rmtree(target_item_dir)
|
||
|
|
else:
|
||
|
|
os.remove(target_item_dir)
|
||
|
|
|
||
|
|
shutil.move(
|
||
|
|
os.path.join(lib_dir, item),
|
||
|
|
target_item_dir
|
||
|
|
)
|
||
|
|
shutil.rmtree(temp_target_dir)
|
||
|
|
return requirement_set
|
||
|
|
|
||
|
|
|
||
|
|
def get_lib_location_guesses(*args, **kwargs):
|
||
|
|
scheme = distutils_scheme('', *args, **kwargs)
|
||
|
|
return [scheme['purelib'], scheme['platlib']]
|