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: /usr/lib/python2.7/dist-packages/pip/ [ drwxr-xr-x ]
name : basecommand.py """Base Command class, and related routines""" from __future__ import absolute_import import logging import os import sys import optparse import warnings from pip import cmdoptions from pip.index import PackageFinder from pip.locations import running_under_virtualenv from pip.download import PipSession from pip.exceptions import (BadCommand, InstallationError, UninstallationError, CommandError, PreviousBuildDirError) from pip.compat import logging_dictConfig from pip.baseparser import ConfigOptionParser, UpdatingDefaultsHelpFormatter from pip.req import InstallRequirement, parse_requirements from pip.status_codes import ( SUCCESS, ERROR, UNKNOWN_ERROR, VIRTUALENV_NOT_FOUND, PREVIOUS_BUILD_DIR_ERROR, ) from pip.utils import deprecation, get_prog, normalize_path from pip.utils.logging import IndentingFormatter from pip.utils.outdated import pip_version_check __all__ = ['Command'] logger = logging.getLogger(__name__) class Command(object): name = None usage = None hidden = False log_streams = ("ext://sys.stdout", "ext://sys.stderr") def __init__(self, isolated=False): 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 _build_session(self, options, retries=None, timeout=None): 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, ) # 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): # factored out for testability return self.parser.parse_args(args) def main(self, args): options, args = self.parse_args(args) if options.quiet: if options.quiet == 1: level = "WARNING" if options.quiet == 2: level = "ERROR" else: level = "CRITICAL" elif options.verbose: level = "DEBUG" else: level = "INFO" logging_dictConfig({ "version": 1, "disable_existing_loggers": False, "filters": { "exclude_warnings": { "()": "pip.utils.logging.MaxLevelFilter", "level": logging.WARNING, }, }, "formatters": { "indent": { "()": IndentingFormatter, "format": "%(message)s", }, }, "handlers": { "console": { "level": level, "class": "pip.utils.logging.ColorizedStreamHandler", "stream": self.log_streams[0], "filters": ["exclude_warnings"], "formatter": "indent", }, "console_errors": { "level": "WARNING", "class": "pip.utils.logging.ColorizedStreamHandler", "stream": self.log_streams[1], "formatter": "indent", }, "user_log": { "level": "DEBUG", "class": "pip.utils.logging.BetterRotatingFileHandler", "filename": options.log or "/dev/null", "delay": True, "formatter": "indent", }, }, "root": { "level": level, "handlers": list(filter(None, [ "console", "console_errors", "user_log" if options.log else None, ])), }, # Disable any logging besides WARNING unless we have DEBUG level # logging enabled. These use both pip._vendor and the bare names # for the case where someone unbundles our libraries. "loggers": dict( ( name, { "level": ( "WARNING" if level in ["INFO", "ERROR"] else "DEBUG" ), }, ) for name in ["pip._vendor", "distlib", "requests", "urllib3"] ), }) if sys.version_info[:2] == (2, 6): warnings.warn( "Python 2.6 is no longer supported by the Python core team, " "please upgrade your Python. A future version of pip will " "drop support for Python 2.6", deprecation.Python26DeprecationWarning ) # TODO: try to get these passing down from the command? # without resorting to os.environ to hold these. 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: # 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('ERROR: %s', exc) logger.debug('Exception information:', exc_info=True) return ERROR except KeyboardInterrupt: logger.critical('Operation cancelled by user') logger.debug('Exception information:', exc_info=True) return ERROR except: logger.critical('Exception:', exc_info=True) return UNKNOWN_ERROR finally: # Check if we're using the latest version of pip available if (not options.disable_pip_version_check and not getattr(options, "no_index", False)): with self._build_session( options, retries=0, timeout=min(5, options.timeout)) as session: pip_version_check(session) return SUCCESS class RequirementCommand(Command): @staticmethod def populate_requirement_set(requirement_set, args, options, finder, session, name, wheel_cache): """ Marshal cmd line args into a requirement set. """ for filename in options.constraints: for req in parse_requirements( filename, constraint=True, finder=finder, options=options, session=session, wheel_cache=wheel_cache): requirement_set.add_requirement(req) for req in args: requirement_set.add_requirement( InstallRequirement.from_line( req, None, isolated=options.isolated_mode, wheel_cache=wheel_cache ) ) for req in options.editables: requirement_set.add_requirement( InstallRequirement.from_editable( req, default_vcs=options.default_vcs, isolated=options.isolated_mode, wheel_cache=wheel_cache ) ) found_req_in_file = False for filename in options.requirements: for req in parse_requirements( filename, finder=finder, options=options, session=session, wheel_cache=wheel_cache): found_req_in_file = True requirement_set.add_requirement(req) # 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 found_req_in_file): opts = {'name': name} if options.find_links: msg = ('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: msg = ('You must give at least one requirement ' 'to %(name)s (see "pip help %(name)s")' % opts) logger.warning(msg) def _build_package_finder(self, options, session): """ Create a package finder appropriate to this requirement command. """ index_urls = [options.index_url] + options.extra_index_urls if options.no_index: logger.info('Ignoring indexes: %s', ','.join(index_urls)) index_urls = [] return PackageFinder( find_links=options.find_links, format_control=options.format_control, index_urls=index_urls, trusted_hosts=options.trusted_hosts, allow_all_prereleases=options.pre, process_dependency_links=options.process_dependency_links, session=session, )