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Diffstat (limited to '.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/commands/install.py')
| -rw-r--r-- | .emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/commands/install.py | 580 |
1 files changed, 580 insertions, 0 deletions
diff --git a/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/commands/install.py b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/commands/install.py new file mode 100644 index 00000000..ebeceacf --- /dev/null +++ b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/commands/install.py @@ -0,0 +1,580 @@ +from __future__ import absolute_import + +import errno +import logging +import operator +import os +import shutil +from optparse import SUPPRESS_HELP + +from pip._vendor import pkg_resources + +from pip._internal.cache import WheelCache +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.cli.status_codes import ERROR +from pip._internal.exceptions import ( + CommandError, InstallationError, PreviousBuildDirError, +) +from pip._internal.legacy_resolve import Resolver +from pip._internal.locations import distutils_scheme +from pip._internal.operations.check import check_install_conflicts +from pip._internal.operations.prepare import RequirementPreparer +from pip._internal.req import RequirementSet, install_given_reqs +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, get_installed_version, + protect_pip_from_modification_on_windows, +) +from pip._internal.utils.temp_dir import TempDirectory +from pip._internal.utils.virtualenv import virtualenv_no_global +from pip._internal.wheel import WheelBuilder + +logger = logging.getLogger(__name__) + + +def is_wheel_installed(): + """ + Return whether the wheel package is installed. + """ + try: + import wheel # noqa: F401 + except ImportError: + return False + + return True + + +def build_wheels(builder, pep517_requirements, legacy_requirements, session): + """ + Build wheels for requirements, depending on whether wheel is installed. + """ + # We don't build wheels for legacy requirements if wheel is not installed. + should_build_legacy = is_wheel_installed() + + # Always build PEP 517 requirements + build_failures = builder.build( + pep517_requirements, + session=session, autobuilding=True + ) + + if should_build_legacy: + # We don't care about failures building legacy + # requirements, as we'll fall through to a direct + # install for those. + builder.build( + legacy_requirements, + session=session, autobuilding=True + ) + + return build_failures + + +class InstallCommand(RequirementCommand): + """ + Install packages from: + + - PyPI (and other indexes) using requirement specifiers. + - VCS project urls. + - Local project directories. + - Local or remote source archives. + + pip also supports installing from "requirements files," which provide + an easy way to specify a whole environment to be installed. + """ + name = 'install' + + usage = """ + %prog [options] <requirement specifier> [package-index-options] ... + %prog [options] -r <requirements file> [package-index-options] ... + %prog [options] [-e] <vcs project url> ... + %prog [options] [-e] <local project path> ... + %prog [options] <archive url/path> ...""" + + summary = 'Install packages.' + + def __init__(self, *args, **kw): + super(InstallCommand, self).__init__(*args, **kw) + + cmd_opts = self.cmd_opts + + cmd_opts.add_option(cmdoptions.requirements()) + cmd_opts.add_option(cmdoptions.constraints()) + cmd_opts.add_option(cmdoptions.no_deps()) + cmd_opts.add_option(cmdoptions.pre()) + + cmd_opts.add_option(cmdoptions.editable()) + cmd_opts.add_option( + '-t', '--target', + dest='target_dir', + metavar='dir', + default=None, + help='Install packages into <dir>. ' + 'By default this will not replace existing files/folders in ' + '<dir>. Use --upgrade to replace existing packages in <dir> ' + 'with new versions.' + ) + cmdoptions.add_target_python_options(cmd_opts) + + cmd_opts.add_option( + '--user', + dest='use_user_site', + action='store_true', + help="Install to the Python user install directory for your " + "platform. Typically ~/.local/, or %APPDATA%\\Python on " + "Windows. (See the Python documentation for site.USER_BASE " + "for full details.)") + cmd_opts.add_option( + '--no-user', + dest='use_user_site', + action='store_false', + help=SUPPRESS_HELP) + cmd_opts.add_option( + '--root', + dest='root_path', + metavar='dir', + default=None, + help="Install everything relative to this alternate root " + "directory.") + cmd_opts.add_option( + '--prefix', + dest='prefix_path', + metavar='dir', + default=None, + help="Installation prefix where lib, bin and other top-level " + "folders are placed") + + cmd_opts.add_option(cmdoptions.build_dir()) + + cmd_opts.add_option(cmdoptions.src()) + + cmd_opts.add_option( + '-U', '--upgrade', + dest='upgrade', + action='store_true', + help='Upgrade all specified packages to the newest available ' + 'version. The handling of dependencies depends on the ' + 'upgrade-strategy used.' + ) + + cmd_opts.add_option( + '--upgrade-strategy', + dest='upgrade_strategy', + default='only-if-needed', + choices=['only-if-needed', 'eager'], + help='Determines how dependency upgrading should be handled ' + '[default: %default]. ' + '"eager" - dependencies are upgraded regardless of ' + 'whether the currently installed version satisfies the ' + 'requirements of the upgraded package(s). ' + '"only-if-needed" - are upgraded only when they do not ' + 'satisfy the requirements of the upgraded package(s).' + ) + + cmd_opts.add_option( + '--force-reinstall', + dest='force_reinstall', + action='store_true', + help='Reinstall all packages even if they are already ' + 'up-to-date.') + + cmd_opts.add_option( + '-I', '--ignore-installed', + dest='ignore_installed', + action='store_true', + help='Ignore the installed packages (reinstalling instead).') + + cmd_opts.add_option(cmdoptions.ignore_requires_python()) + 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(cmdoptions.install_options()) + cmd_opts.add_option(cmdoptions.global_options()) + + cmd_opts.add_option( + "--compile", + action="store_true", + dest="compile", + default=True, + help="Compile Python source files to bytecode", + ) + + cmd_opts.add_option( + "--no-compile", + action="store_false", + dest="compile", + help="Do not compile Python source files to bytecode", + ) + + cmd_opts.add_option( + "--no-warn-script-location", + action="store_false", + dest="warn_script_location", + default=True, + help="Do not warn when installing scripts outside PATH", + ) + cmd_opts.add_option( + "--no-warn-conflicts", + action="store_false", + dest="warn_about_conflicts", + default=True, + help="Do not warn about broken dependencies", + ) + + 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.no_clean()) + cmd_opts.add_option(cmdoptions.require_hashes()) + cmd_opts.add_option(cmdoptions.progress_bar()) + + 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): + cmdoptions.check_install_build_global(options) + upgrade_strategy = "to-satisfy-only" + if options.upgrade: + upgrade_strategy = options.upgrade_strategy + + if options.build_dir: + options.build_dir = os.path.abspath(options.build_dir) + + cmdoptions.check_dist_restriction(options, check_target=True) + + options.src_dir = os.path.abspath(options.src_dir) + install_options = options.install_options or [] + if options.use_user_site: + if options.prefix_path: + raise CommandError( + "Can not combine '--user' and '--prefix' as they imply " + "different installation locations" + ) + if virtualenv_no_global(): + raise InstallationError( + "Can not perform a '--user' install. User site-packages " + "are not visible in this virtualenv." + ) + install_options.append('--user') + install_options.append('--prefix=') + + target_temp_dir = TempDirectory(kind="target") + if options.target_dir: + options.ignore_installed = True + options.target_dir = os.path.abspath(options.target_dir) + if (os.path.exists(options.target_dir) and not + os.path.isdir(options.target_dir)): + raise CommandError( + "Target path exists but is not a directory, will not " + "continue." + ) + + # Create a target directory for using with the target option + target_temp_dir.create() + install_options.append('--home=' + target_temp_dir.path) + + global_options = options.global_options or [] + + 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, + ignore_requires_python=options.ignore_requires_python, + ) + build_delete = (not (options.no_clean or options.build_dir)) + wheel_cache = WheelCache(options.cache_dir, options.format_control) + + 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="install" + ) as directory: + requirement_set = RequirementSet( + require_hashes=options.require_hashes, + check_supported_wheels=not options.target_dir, + ) + + try: + self.populate_requirement_set( + requirement_set, args, options, finder, session, + self.name, wheel_cache + ) + preparer = RequirementPreparer( + build_dir=directory.path, + src_dir=options.src_dir, + download_dir=None, + 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=wheel_cache, + use_user_site=options.use_user_site, + upgrade_strategy=upgrade_strategy, + force_reinstall=options.force_reinstall, + ignore_dependencies=options.ignore_dependencies, + ignore_requires_python=options.ignore_requires_python, + ignore_installed=options.ignore_installed, + isolated=options.isolated_mode, + use_pep517=options.use_pep517 + ) + resolver.resolve(requirement_set) + + protect_pip_from_modification_on_windows( + modifying_pip=requirement_set.has_requirement("pip") + ) + + # Consider legacy and PEP517-using requirements separately + legacy_requirements = [] + pep517_requirements = [] + for req in requirement_set.requirements.values(): + if req.use_pep517: + pep517_requirements.append(req) + else: + legacy_requirements.append(req) + + wheel_builder = WheelBuilder( + finder, preparer, wheel_cache, + build_options=[], global_options=[], + ) + + build_failures = build_wheels( + builder=wheel_builder, + pep517_requirements=pep517_requirements, + legacy_requirements=legacy_requirements, + session=session, + ) + + # If we're using PEP 517, we cannot do a direct install + # so we fail here. + if build_failures: + raise InstallationError( + "Could not build wheels for {} which use" + " PEP 517 and cannot be installed directly".format( + ", ".join(r.name for r in build_failures))) + + to_install = resolver.get_installation_order( + requirement_set + ) + + # Consistency Checking of the package set we're installing. + should_warn_about_conflicts = ( + not options.ignore_dependencies and + options.warn_about_conflicts + ) + if should_warn_about_conflicts: + self._warn_about_conflicts(to_install) + + # Don't warn about script install locations if + # --target has been specified + warn_script_location = options.warn_script_location + if options.target_dir: + warn_script_location = False + + installed = install_given_reqs( + to_install, + install_options, + global_options, + root=options.root_path, + home=target_temp_dir.path, + prefix=options.prefix_path, + pycompile=options.compile, + warn_script_location=warn_script_location, + use_user_site=options.use_user_site, + ) + + lib_locations = get_lib_location_guesses( + user=options.use_user_site, + home=target_temp_dir.path, + root=options.root_path, + prefix=options.prefix_path, + isolated=options.isolated_mode, + ) + working_set = pkg_resources.WorkingSet(lib_locations) + + reqs = sorted(installed, key=operator.attrgetter('name')) + items = [] + for req in reqs: + item = req.name + try: + installed_version = get_installed_version( + req.name, working_set=working_set + ) + if installed_version: + item += '-' + installed_version + except Exception: + pass + items.append(item) + installed = ' '.join(items) + if installed: + logger.info('Successfully installed %s', installed) + except EnvironmentError as error: + show_traceback = (self.verbosity >= 1) + + message = create_env_error_message( + error, show_traceback, options.use_user_site, + ) + logger.error(message, exc_info=show_traceback) + + return ERROR + except PreviousBuildDirError: + options.no_clean = True + raise + finally: + # Clean up + if not options.no_clean: + requirement_set.cleanup_files() + wheel_cache.cleanup() + + if options.target_dir: + self._handle_target_dir( + options.target_dir, target_temp_dir, options.upgrade + ) + return requirement_set + + def _handle_target_dir(self, target_dir, target_temp_dir, upgrade): + ensure_dir(target_dir) + + # Checking both purelib and platlib directories for installed + # packages to be moved to target directory + lib_dir_list = [] + + with target_temp_dir: + # Checking both purelib and platlib directories for installed + # packages to be moved to target directory + scheme = distutils_scheme('', home=target_temp_dir.path) + purelib_dir = scheme['purelib'] + platlib_dir = scheme['platlib'] + data_dir = scheme['data'] + + 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) + if os.path.exists(data_dir): + lib_dir_list.append(data_dir) + + for lib_dir in lib_dir_list: + for item in os.listdir(lib_dir): + if lib_dir == data_dir: + ddir = os.path.join(data_dir, item) + if any(s.startswith(ddir) for s in lib_dir_list[:-1]): + continue + target_item_dir = os.path.join(target_dir, item) + if os.path.exists(target_item_dir): + if not 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 + ) + + def _warn_about_conflicts(self, to_install): + try: + package_set, _dep_info = check_install_conflicts(to_install) + except Exception: + logger.error("Error checking for conflicts.", exc_info=True) + return + missing, conflicting = _dep_info + + # NOTE: There is some duplication here from pip check + for project_name in missing: + version = package_set[project_name][0] + for dependency in missing[project_name]: + logger.critical( + "%s %s requires %s, which is not installed.", + project_name, version, dependency[1], + ) + + for project_name in conflicting: + version = package_set[project_name][0] + for dep_name, dep_version, req in conflicting[project_name]: + logger.critical( + "%s %s has requirement %s, but you'll have %s %s which is " + "incompatible.", + project_name, version, req, dep_name, dep_version, + ) + + +def get_lib_location_guesses(*args, **kwargs): + scheme = distutils_scheme('', *args, **kwargs) + return [scheme['purelib'], scheme['platlib']] + + +def create_env_error_message(error, show_traceback, using_user_site): + """Format an error message for an EnvironmentError + + It may occur anytime during the execution of the install command. + """ + parts = [] + + # Mention the error if we are not going to show a traceback + parts.append("Could not install packages due to an EnvironmentError") + if not show_traceback: + parts.append(": ") + parts.append(str(error)) + else: + parts.append(".") + + # Spilt the error indication from a helper message (if any) + parts[-1] += "\n" + + # Suggest useful actions to the user: + # (1) using user site-packages or (2) verifying the permissions + if error.errno == errno.EACCES: + user_option_part = "Consider using the `--user` option" + permissions_part = "Check the permissions" + + if not using_user_site: + parts.extend([ + user_option_part, " or ", + permissions_part.lower(), + ]) + else: + parts.append(permissions_part) + parts.append(".\n") + + return "".join(parts).strip() + "\n" |