diff options
Diffstat (limited to '.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/cli/base_command.py')
| -rw-r--r-- | .emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/cli/base_command.py | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/cli/base_command.py b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/cli/base_command.py new file mode 100644 index 00000000..90830be4 --- /dev/null +++ b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/pip/_internal/cli/base_command.py @@ -0,0 +1,346 @@ +"""Base Command class, and related routines""" +from __future__ import absolute_import, print_function + +import logging +import logging.config +import optparse +import os +import platform +import sys +import traceback + +from pip._internal.cli import cmdoptions +from pip._internal.cli.cmdoptions import make_search_scope +from pip._internal.cli.parser import ( + ConfigOptionParser, UpdatingDefaultsHelpFormatter, +) +from pip._internal.cli.status_codes import ( + ERROR, PREVIOUS_BUILD_DIR_ERROR, SUCCESS, UNKNOWN_ERROR, + VIRTUALENV_NOT_FOUND, +) +from pip._internal.download import PipSession +from pip._internal.exceptions import ( + BadCommand, CommandError, InstallationError, PreviousBuildDirError, + UninstallationError, +) +from pip._internal.index import PackageFinder +from pip._internal.models.selection_prefs import SelectionPreferences +from pip._internal.models.target_python import TargetPython +from pip._internal.req.constructors import ( + install_req_from_editable, install_req_from_line, +) +from pip._internal.req.req_file import parse_requirements +from pip._internal.utils.deprecation import deprecated +from pip._internal.utils.logging import BrokenStdoutLoggingError, setup_logging +from pip._internal.utils.misc import get_prog, normalize_path +from pip._internal.utils.outdated import pip_version_check +from pip._internal.utils.typing import MYPY_CHECK_RUNNING +from pip._internal.utils.virtualenv import running_under_virtualenv + +if MYPY_CHECK_RUNNING: + from typing import Optional, List, Tuple, Any + from optparse import Values + from pip._internal.cache import WheelCache + from pip._internal.req.req_set import RequirementSet + +__all__ = ['Command'] + +logger = logging.getLogger(__name__) + + +class Command(object): + name = None # type: Optional[str] + usage = None # type: Optional[str] + ignore_require_venv = False # type: bool + + def __init__(self, isolated=False): + # type: (bool) -> None + parser_kw = { + 'usage': self.usage, + 'prog': '%s %s' % (get_prog(), self.name), + 'formatter': UpdatingDefaultsHelpFormatter(), + 'add_help_option': False, + 'name': self.name, + 'description': self.__doc__, + 'isolated': isolated, + } + + self.parser = ConfigOptionParser(**parser_kw) + + # Commands should add options to this option group + optgroup_name = '%s Options' % self.name.capitalize() + self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name) + + # Add the general options + gen_opts = cmdoptions.make_option_group( + cmdoptions.general_group, + self.parser, + ) + self.parser.add_option_group(gen_opts) + + def run(self, options, args): + # type: (Values, List[Any]) -> Any + raise NotImplementedError + + @classmethod + def _get_index_urls(cls, options): + """Return a list of index urls from user-provided options.""" + index_urls = [] + if not getattr(options, "no_index", False): + url = getattr(options, "index_url", None) + if url: + index_urls.append(url) + urls = getattr(options, "extra_index_urls", None) + if urls: + index_urls.extend(urls) + # Return None rather than an empty list + return index_urls or None + + def _build_session(self, options, retries=None, timeout=None): + # type: (Values, Optional[int], Optional[int]) -> PipSession + session = PipSession( + cache=( + normalize_path(os.path.join(options.cache_dir, "http")) + if options.cache_dir else None + ), + retries=retries if retries is not None else options.retries, + insecure_hosts=options.trusted_hosts, + index_urls=self._get_index_urls(options), + ) + + # Handle custom ca-bundles from the user + if options.cert: + session.verify = options.cert + + # Handle SSL client certificate + if options.client_cert: + session.cert = options.client_cert + + # Handle timeouts + if options.timeout or timeout: + session.timeout = ( + timeout if timeout is not None else options.timeout + ) + + # Handle configured proxies + if options.proxy: + session.proxies = { + "http": options.proxy, + "https": options.proxy, + } + + # Determine if we can prompt the user for authentication or not + session.auth.prompting = not options.no_input + + return session + + def parse_args(self, args): + # type: (List[str]) -> Tuple + # factored out for testability + return self.parser.parse_args(args) + + def main(self, args): + # type: (List[str]) -> int + options, args = self.parse_args(args) + + # Set verbosity so that it can be used elsewhere. + self.verbosity = options.verbose - options.quiet + + level_number = setup_logging( + verbosity=self.verbosity, + no_color=options.no_color, + user_log_file=options.log, + ) + + if sys.version_info[:2] == (2, 7): + message = ( + "A future version of pip will drop support for Python 2.7. " + "More details about Python 2 support in pip, can be found at " + "https://pip.pypa.io/en/latest/development/release-process/#python-2-support" # noqa + ) + if platform.python_implementation() == "CPython": + message = ( + "Python 2.7 will reach the end of its life on January " + "1st, 2020. Please upgrade your Python as Python 2.7 " + "won't be maintained after that date. " + ) + message + deprecated(message, replacement=None, gone_in=None) + + # TODO: Try to get these passing down from the command? + # without resorting to os.environ to hold these. + # This also affects isolated builds and it should. + + if options.no_input: + os.environ['PIP_NO_INPUT'] = '1' + + if options.exists_action: + os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action) + + if options.require_venv and not self.ignore_require_venv: + # If a venv is required check if it can really be found + if not running_under_virtualenv(): + logger.critical( + 'Could not find an activated virtualenv (required).' + ) + sys.exit(VIRTUALENV_NOT_FOUND) + + try: + status = self.run(options, args) + # FIXME: all commands should return an exit status + # and when it is done, isinstance is not needed anymore + if isinstance(status, int): + return status + except PreviousBuildDirError as exc: + logger.critical(str(exc)) + logger.debug('Exception information:', exc_info=True) + + return PREVIOUS_BUILD_DIR_ERROR + except (InstallationError, UninstallationError, BadCommand) as exc: + logger.critical(str(exc)) + logger.debug('Exception information:', exc_info=True) + + return ERROR + except CommandError as exc: + logger.critical('%s', exc) + logger.debug('Exception information:', exc_info=True) + + return ERROR + except BrokenStdoutLoggingError: + # Bypass our logger and write any remaining messages to stderr + # because stdout no longer works. + print('ERROR: Pipe to stdout was broken', file=sys.stderr) + if level_number <= logging.DEBUG: + traceback.print_exc(file=sys.stderr) + + return ERROR + except KeyboardInterrupt: + logger.critical('Operation cancelled by user') + logger.debug('Exception information:', exc_info=True) + + return ERROR + except BaseException: + logger.critical('Exception:', exc_info=True) + + return UNKNOWN_ERROR + finally: + allow_version_check = ( + # Does this command have the index_group options? + hasattr(options, "no_index") and + # Is this command allowed to perform this check? + not (options.disable_pip_version_check or options.no_index) + ) + # Check if we're using the latest version of pip available + if allow_version_check: + session = self._build_session( + options, + retries=0, + timeout=min(5, options.timeout) + ) + with session: + pip_version_check(session, options) + + # Shutdown the logging module + logging.shutdown() + + return SUCCESS + + +class RequirementCommand(Command): + + @staticmethod + def populate_requirement_set(requirement_set, # type: RequirementSet + args, # type: List[str] + options, # type: Values + finder, # type: PackageFinder + session, # type: PipSession + name, # type: str + wheel_cache # type: Optional[WheelCache] + ): + # type: (...) -> None + """ + Marshal cmd line args into a requirement set. + """ + # NOTE: As a side-effect, options.require_hashes and + # requirement_set.require_hashes may be updated + + for filename in options.constraints: + for req_to_add in parse_requirements( + filename, + constraint=True, finder=finder, options=options, + session=session, wheel_cache=wheel_cache): + req_to_add.is_direct = True + requirement_set.add_requirement(req_to_add) + + for req in args: + req_to_add = install_req_from_line( + req, None, isolated=options.isolated_mode, + use_pep517=options.use_pep517, + wheel_cache=wheel_cache + ) + req_to_add.is_direct = True + requirement_set.add_requirement(req_to_add) + + for req in options.editables: + req_to_add = install_req_from_editable( + req, + isolated=options.isolated_mode, + use_pep517=options.use_pep517, + wheel_cache=wheel_cache + ) + req_to_add.is_direct = True + requirement_set.add_requirement(req_to_add) + + for filename in options.requirements: + for req_to_add in parse_requirements( + filename, + finder=finder, options=options, session=session, + wheel_cache=wheel_cache, + use_pep517=options.use_pep517): + req_to_add.is_direct = True + requirement_set.add_requirement(req_to_add) + # If --require-hashes was a line in a requirements file, tell + # RequirementSet about it: + requirement_set.require_hashes = options.require_hashes + + if not (args or options.editables or options.requirements): + opts = {'name': name} + if options.find_links: + raise CommandError( + 'You must give at least one requirement to %(name)s ' + '(maybe you meant "pip %(name)s %(links)s"?)' % + dict(opts, links=' '.join(options.find_links))) + else: + raise CommandError( + 'You must give at least one requirement to %(name)s ' + '(see "pip help %(name)s")' % opts) + + def _build_package_finder( + self, + options, # type: Values + session, # type: PipSession + target_python=None, # type: Optional[TargetPython] + ignore_requires_python=None, # type: Optional[bool] + ): + # type: (...) -> PackageFinder + """ + Create a package finder appropriate to this requirement command. + + :param ignore_requires_python: Whether to ignore incompatible + "Requires-Python" values in links. Defaults to False. + """ + search_scope = make_search_scope(options) + selection_prefs = SelectionPreferences( + allow_yanked=True, + format_control=options.format_control, + allow_all_prereleases=options.pre, + prefer_binary=options.prefer_binary, + ignore_requires_python=ignore_requires_python, + ) + + return PackageFinder.create( + search_scope=search_scope, + selection_prefs=selection_prefs, + trusted_hosts=options.trusted_hosts, + session=session, + target_python=target_python, + ) |