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Diffstat (limited to 'venv/lib/python3.11/site-packages/pip/_internal/commands/install.py')
| -rw-r--r-- | venv/lib/python3.11/site-packages/pip/_internal/commands/install.py | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/pip/_internal/commands/install.py b/venv/lib/python3.11/site-packages/pip/_internal/commands/install.py new file mode 100644 index 0000000..e944bb9 --- /dev/null +++ b/venv/lib/python3.11/site-packages/pip/_internal/commands/install.py @@ -0,0 +1,774 @@ +import errno +import json +import operator +import os +import shutil +import site +from optparse import SUPPRESS_HELP, Values +from typing import List, Optional + +from pip._vendor.rich import print_json + +from pip._internal.cache import WheelCache +from pip._internal.cli import cmdoptions +from pip._internal.cli.cmdoptions import make_target_python +from pip._internal.cli.req_command import ( + RequirementCommand, + warn_if_run_as_root, + with_cleanup, +) +from pip._internal.cli.status_codes import ERROR, SUCCESS +from pip._internal.exceptions import CommandError, InstallationError +from pip._internal.locations import get_scheme +from pip._internal.metadata import get_environment +from pip._internal.models.installation_report import InstallationReport +from pip._internal.operations.build.build_tracker import get_build_tracker +from pip._internal.operations.check import ConflictDetails, check_install_conflicts +from pip._internal.req import install_given_reqs +from pip._internal.req.req_install import ( + InstallRequirement, + check_legacy_setup_py_options, +) +from pip._internal.utils.compat import WINDOWS +from pip._internal.utils.filesystem import test_writable_dir +from pip._internal.utils.logging import getLogger +from pip._internal.utils.misc import ( + check_externally_managed, + ensure_dir, + get_pip_version, + protect_pip_from_modification_on_windows, + write_output, +) +from pip._internal.utils.temp_dir import TempDirectory +from pip._internal.utils.virtualenv import ( + running_under_virtualenv, + virtualenv_no_global, +) +from pip._internal.wheel_builder import build, should_build_for_install_command + +logger = getLogger(__name__) + + +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. + """ + + 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> ...""" + + def add_options(self) -> None: + self.cmd_opts.add_option(cmdoptions.requirements()) + self.cmd_opts.add_option(cmdoptions.constraints()) + self.cmd_opts.add_option(cmdoptions.no_deps()) + self.cmd_opts.add_option(cmdoptions.pre()) + + self.cmd_opts.add_option(cmdoptions.editable()) + self.cmd_opts.add_option( + "--dry-run", + action="store_true", + dest="dry_run", + default=False, + help=( + "Don't actually install anything, just print what would be. " + "Can be used in combination with --ignore-installed " + "to 'resolve' the requirements." + ), + ) + self.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(self.cmd_opts) + + self.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.)" + ), + ) + self.cmd_opts.add_option( + "--no-user", + dest="use_user_site", + action="store_false", + help=SUPPRESS_HELP, + ) + self.cmd_opts.add_option( + "--root", + dest="root_path", + metavar="dir", + default=None, + help="Install everything relative to this alternate root directory.", + ) + self.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. Note that the resulting installation may " + "contain scripts and other resources which reference the " + "Python interpreter of pip, and not that of ``--prefix``. " + "See also the ``--python`` option if the intention is to " + "install packages into another (possibly pip-free) " + "environment." + ), + ) + + self.cmd_opts.add_option(cmdoptions.src()) + + self.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." + ), + ) + + self.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)." + ), + ) + + self.cmd_opts.add_option( + "--force-reinstall", + dest="force_reinstall", + action="store_true", + help="Reinstall all packages even if they are already up-to-date.", + ) + + self.cmd_opts.add_option( + "-I", + "--ignore-installed", + dest="ignore_installed", + action="store_true", + help=( + "Ignore the installed packages, overwriting them. " + "This can break your system if the existing package " + "is of a different version or was installed " + "with a different package manager!" + ), + ) + + self.cmd_opts.add_option(cmdoptions.ignore_requires_python()) + 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.check_build_deps()) + self.cmd_opts.add_option(cmdoptions.override_externally_managed()) + + self.cmd_opts.add_option(cmdoptions.config_settings()) + self.cmd_opts.add_option(cmdoptions.global_options()) + + self.cmd_opts.add_option( + "--compile", + action="store_true", + dest="compile", + default=True, + help="Compile Python source files to bytecode", + ) + + self.cmd_opts.add_option( + "--no-compile", + action="store_false", + dest="compile", + help="Do not compile Python source files to bytecode", + ) + + self.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", + ) + self.cmd_opts.add_option( + "--no-warn-conflicts", + action="store_false", + dest="warn_about_conflicts", + default=True, + help="Do not warn about broken dependencies", + ) + 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.require_hashes()) + self.cmd_opts.add_option(cmdoptions.progress_bar()) + self.cmd_opts.add_option(cmdoptions.root_user_action()) + + 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) + + self.cmd_opts.add_option( + "--report", + dest="json_report_file", + metavar="file", + default=None, + help=( + "Generate a JSON file describing what pip did to install " + "the provided requirements. " + "Can be used in combination with --dry-run and --ignore-installed " + "to 'resolve' the requirements. " + "When - is used as file name it writes to stdout. " + "When writing to stdout, please combine with the --quiet option " + "to avoid mixing pip logging output with JSON output." + ), + ) + + @with_cleanup + def run(self, options: Values, args: List[str]) -> int: + if options.use_user_site and options.target_dir is not None: + raise CommandError("Can not combine '--user' and '--target'") + + # Check whether the environment we're installing into is externally + # managed, as specified in PEP 668. Specifying --root, --target, or + # --prefix disables the check, since there's no reliable way to locate + # the EXTERNALLY-MANAGED file for those cases. An exception is also + # made specifically for "--dry-run --report" for convenience. + installing_into_current_environment = ( + not (options.dry_run and options.json_report_file) + and options.root_path is None + and options.target_dir is None + and options.prefix_path is None + ) + if ( + installing_into_current_environment + and not options.override_externally_managed + ): + check_externally_managed() + + upgrade_strategy = "to-satisfy-only" + if options.upgrade: + upgrade_strategy = options.upgrade_strategy + + cmdoptions.check_dist_restriction(options, check_target=True) + + logger.verbose("Using %s", get_pip_version()) + options.use_user_site = decide_user_install( + options.use_user_site, + prefix_path=options.prefix_path, + target_dir=options.target_dir, + root_path=options.root_path, + isolated_mode=options.isolated_mode, + ) + + target_temp_dir: Optional[TempDirectory] = None + target_temp_dir_path: Optional[str] = None + if options.target_dir: + options.ignore_installed = True + options.target_dir = os.path.abspath(options.target_dir) + if ( + # fmt: off + os.path.exists(options.target_dir) and + not os.path.isdir(options.target_dir) + # fmt: on + ): + 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 = TempDirectory(kind="target") + target_temp_dir_path = target_temp_dir.path + self.enter_context(target_temp_dir) + + global_options = options.global_options or [] + + 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, + ) + build_tracker = self.enter_context(get_build_tracker()) + + directory = TempDirectory( + delete=not options.no_clean, + kind="install", + globally_managed=True, + ) + + try: + reqs = self.get_requirements(args, options, finder, session) + check_legacy_setup_py_options(options, reqs) + + wheel_cache = WheelCache(options.cache_dir) + + # Only when installing is it permitted to use PEP 660. + # In other circumstances (pip wheel, pip download) we generate + # regular (i.e. non editable) metadata and wheels. + for req in reqs: + req.permit_editable_wheels = True + + preparer = self.make_requirement_preparer( + temp_build_dir=directory, + options=options, + build_tracker=build_tracker, + session=session, + finder=finder, + use_user_site=options.use_user_site, + verbosity=self.verbosity, + ) + resolver = self.make_resolver( + preparer=preparer, + finder=finder, + options=options, + wheel_cache=wheel_cache, + use_user_site=options.use_user_site, + ignore_installed=options.ignore_installed, + ignore_requires_python=options.ignore_requires_python, + force_reinstall=options.force_reinstall, + upgrade_strategy=upgrade_strategy, + use_pep517=options.use_pep517, + ) + + self.trace_basic_info(finder) + + requirement_set = resolver.resolve( + reqs, check_supported_wheels=not options.target_dir + ) + + if options.json_report_file: + report = InstallationReport(requirement_set.requirements_to_install) + if options.json_report_file == "-": + print_json(data=report.to_dict()) + else: + with open(options.json_report_file, "w", encoding="utf-8") as f: + json.dump(report.to_dict(), f, indent=2, ensure_ascii=False) + + if options.dry_run: + # In non dry-run mode, the legacy versions and specifiers check + # will be done as part of conflict detection. + requirement_set.warn_legacy_versions_and_specifiers() + would_install_items = sorted( + (r.metadata["name"], r.metadata["version"]) + for r in requirement_set.requirements_to_install + ) + if would_install_items: + write_output( + "Would install %s", + " ".join("-".join(item) for item in would_install_items), + ) + return SUCCESS + + try: + pip_req = requirement_set.get_requirement("pip") + except KeyError: + modifying_pip = False + else: + # If we're not replacing an already installed pip, + # we're not modifying it. + modifying_pip = pip_req.satisfied_by is None + protect_pip_from_modification_on_windows(modifying_pip=modifying_pip) + + reqs_to_build = [ + r + for r in requirement_set.requirements.values() + if should_build_for_install_command(r) + ] + + _, build_failures = build( + reqs_to_build, + wheel_cache=wheel_cache, + verify=True, + build_options=[], + global_options=global_options, + ) + + if build_failures: + raise InstallationError( + "Could not build wheels for {}, which is required to " + "install pyproject.toml-based projects".format( + ", ".join(r.name for r in build_failures) # type: ignore + ) + ) + + to_install = resolver.get_installation_order(requirement_set) + + # Check for conflicts in the package set we're installing. + conflicts: Optional[ConflictDetails] = None + should_warn_about_conflicts = ( + not options.ignore_dependencies and options.warn_about_conflicts + ) + if should_warn_about_conflicts: + conflicts = self._determine_conflicts(to_install) + + # Don't warn about script install locations if + # --target or --prefix has been specified + warn_script_location = options.warn_script_location + if options.target_dir or options.prefix_path: + warn_script_location = False + + installed = install_given_reqs( + to_install, + global_options, + root=options.root_path, + home=target_temp_dir_path, + prefix=options.prefix_path, + warn_script_location=warn_script_location, + use_user_site=options.use_user_site, + pycompile=options.compile, + ) + + 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, + ) + env = get_environment(lib_locations) + + installed.sort(key=operator.attrgetter("name")) + items = [] + for result in installed: + item = result.name + try: + installed_dist = env.get_distribution(item) + if installed_dist is not None: + item = f"{item}-{installed_dist.version}" + except Exception: + pass + items.append(item) + + if conflicts is not None: + self._warn_about_conflicts( + conflicts, + resolver_variant=self.determine_resolver_variant(options), + ) + + installed_desc = " ".join(items) + if installed_desc: + write_output( + "Successfully installed %s", + installed_desc, + ) + except OSError as error: + show_traceback = self.verbosity >= 1 + + message = create_os_error_message( + error, + show_traceback, + options.use_user_site, + ) + logger.error(message, exc_info=show_traceback) + + return ERROR + + if options.target_dir: + assert target_temp_dir + self._handle_target_dir( + options.target_dir, target_temp_dir, options.upgrade + ) + if options.root_user_action == "warn": + warn_if_run_as_root() + return SUCCESS + + def _handle_target_dir( + self, target_dir: str, target_temp_dir: TempDirectory, upgrade: bool + ) -> None: + ensure_dir(target_dir) + + # Checking both purelib and platlib directories for installed + # packages to be moved to target directory + lib_dir_list = [] + + # Checking both purelib and platlib directories for installed + # packages to be moved to target directory + scheme = get_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 _determine_conflicts( + self, to_install: List[InstallRequirement] + ) -> Optional[ConflictDetails]: + try: + return check_install_conflicts(to_install) + except Exception: + logger.exception( + "Error while checking for conflicts. Please file an issue on " + "pip's issue tracker: https://github.com/pypa/pip/issues/new" + ) + return None + + def _warn_about_conflicts( + self, conflict_details: ConflictDetails, resolver_variant: str + ) -> None: + package_set, (missing, conflicting) = conflict_details + if not missing and not conflicting: + return + + parts: List[str] = [] + if resolver_variant == "legacy": + parts.append( + "pip's legacy dependency resolver does not consider dependency " + "conflicts when selecting packages. This behaviour is the " + "source of the following dependency conflicts." + ) + else: + assert resolver_variant == "resolvelib" + parts.append( + "pip's dependency resolver does not currently take into account " + "all the packages that are installed. This behaviour is the " + "source of the following dependency conflicts." + ) + + # NOTE: There is some duplication here, with commands/check.py + for project_name in missing: + version = package_set[project_name][0] + for dependency in missing[project_name]: + message = ( + f"{project_name} {version} requires {dependency[1]}, " + "which is not installed." + ) + parts.append(message) + + for project_name in conflicting: + version = package_set[project_name][0] + for dep_name, dep_version, req in conflicting[project_name]: + message = ( + "{name} {version} requires {requirement}, but {you} have " + "{dep_name} {dep_version} which is incompatible." + ).format( + name=project_name, + version=version, + requirement=req, + dep_name=dep_name, + dep_version=dep_version, + you=("you" if resolver_variant == "resolvelib" else "you'll"), + ) + parts.append(message) + + logger.critical("\n".join(parts)) + + +def get_lib_location_guesses( + user: bool = False, + home: Optional[str] = None, + root: Optional[str] = None, + isolated: bool = False, + prefix: Optional[str] = None, +) -> List[str]: + scheme = get_scheme( + "", + user=user, + home=home, + root=root, + isolated=isolated, + prefix=prefix, + ) + return [scheme.purelib, scheme.platlib] + + +def site_packages_writable(root: Optional[str], isolated: bool) -> bool: + return all( + test_writable_dir(d) + for d in set(get_lib_location_guesses(root=root, isolated=isolated)) + ) + + +def decide_user_install( + use_user_site: Optional[bool], + prefix_path: Optional[str] = None, + target_dir: Optional[str] = None, + root_path: Optional[str] = None, + isolated_mode: bool = False, +) -> bool: + """Determine whether to do a user install based on the input options. + + If use_user_site is False, no additional checks are done. + If use_user_site is True, it is checked for compatibility with other + options. + If use_user_site is None, the default behaviour depends on the environment, + which is provided by the other arguments. + """ + # In some cases (config from tox), use_user_site can be set to an integer + # rather than a bool, which 'use_user_site is False' wouldn't catch. + if (use_user_site is not None) and (not use_user_site): + logger.debug("Non-user install by explicit request") + return False + + if use_user_site: + if 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." + ) + logger.debug("User install by explicit request") + return True + + # If we are here, user installs have not been explicitly requested/avoided + assert use_user_site is None + + # user install incompatible with --prefix/--target + if prefix_path or target_dir: + logger.debug("Non-user install due to --prefix or --target option") + return False + + # If user installs are not enabled, choose a non-user install + if not site.ENABLE_USER_SITE: + logger.debug("Non-user install because user site-packages disabled") + return False + + # If we have permission for a non-user install, do that, + # otherwise do a user install. + if site_packages_writable(root=root_path, isolated=isolated_mode): + logger.debug("Non-user install because site-packages writeable") + return False + + logger.info( + "Defaulting to user installation because normal site-packages " + "is not writeable" + ) + return True + + +def create_os_error_message( + error: OSError, show_traceback: bool, using_user_site: bool +) -> str: + """Format an error message for an OSError + + 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 OSError") + 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 running_under_virtualenv() and not using_user_site: + parts.extend( + [ + user_option_part, + " or ", + permissions_part.lower(), + ] + ) + else: + parts.append(permissions_part) + parts.append(".\n") + + # Suggest the user to enable Long Paths if path length is + # more than 260 + if ( + WINDOWS + and error.errno == errno.ENOENT + and error.filename + and len(error.filename) > 260 + ): + parts.append( + "HINT: This error might have occurred since " + "this system does not have Windows Long Path " + "support enabled. You can find information on " + "how to enable this at " + "https://pip.pypa.io/warnings/enable-long-paths\n" + ) + + return "".join(parts).strip() + "\n" |