42ebefab3b
The __future__ module [1] was used in this context to ensure compatibility between python 2 and python 3. We previously dropped the support of python 2.7 [2] and now we only support python 3 so we don't need to continue to use this module and the imports listed below. Imports commonly used and their related PEPs: - `division` is related to PEP 238 [3] - `print_function` is related to PEP 3105 [4] - `unicode_literals` is related to PEP 3112 [5] - `with_statement` is related to PEP 343 [6] - `absolute_import` is related to PEP 328 [7] [1] https://docs.python.org/3/library/__future__.html [2] https://governance.openstack.org/tc/goals/selected/ussuri/drop-py27.html [3] https://www.python.org/dev/peps/pep-0238 [4] https://www.python.org/dev/peps/pep-3105 [5] https://www.python.org/dev/peps/pep-3112 [6] https://www.python.org/dev/peps/pep-0343 [7] https://www.python.org/dev/peps/pep-0328 Change-Id: I65fb53db889afcf1a947ea61094bfab877853324
655 lines
24 KiB
Python
655 lines
24 KiB
Python
# Copyright 2012 OpenStack Foundation.
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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"""
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Command-line interface to the Neutron APIs
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"""
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import argparse
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import inspect
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import itertools
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import logging
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import os
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import sys
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from keystoneauth1 import session
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import os_client_config
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from oslo_utils import encodeutils
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from oslo_utils import netutils
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from cliff import app
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from cliff import command
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from cliff import commandmanager
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from neutronclient._i18n import _
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from neutronclient.common import clientmanager
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from neutronclient.common import exceptions as exc
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from neutronclient.common import extension as client_extension
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from neutronclient.neutron.v2_0 import subnet
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from neutronclient.version import __version__
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VERSION = '2.0'
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NEUTRON_API_VERSION = '2.0'
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NAMESPACE_MAP = {NEUTRON_API_VERSION: 'neutron.cli.v2'}
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def run_command(cmd, cmd_parser, sub_argv):
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_argv = sub_argv
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index = -1
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values_specs = []
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if '--' in sub_argv:
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index = sub_argv.index('--')
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_argv = sub_argv[:index]
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values_specs = sub_argv[index:]
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known_args, _values_specs = cmd_parser.parse_known_args(_argv)
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if(isinstance(cmd, subnet.CreateSubnet) and not known_args.cidr):
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cidr = get_first_valid_cidr(_values_specs)
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if cidr:
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known_args.cidr = cidr
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_values_specs.remove(cidr)
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cmd.values_specs = (index == -1 and _values_specs or values_specs)
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return cmd.run(known_args)
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def get_first_valid_cidr(value_specs):
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# Bug 1442771, argparse does not allow optional positional parameter
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# to be separated from previous positional parameter.
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# When cidr was separated from network, the value will not be able
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# to be parsed into known_args, but saved to _values_specs instead.
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for value in value_specs:
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if netutils.is_valid_cidr(value):
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return value
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def env(*_vars, **kwargs):
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"""Search for the first defined of possibly many env vars.
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Returns the first environment variable defined in vars, or
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returns the default defined in kwargs.
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"""
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for v in _vars:
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value = os.environ.get(v, None)
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if value:
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return value
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return kwargs.get('default', '')
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def check_non_negative_int(value):
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try:
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value = int(value)
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except ValueError:
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raise argparse.ArgumentTypeError(_("invalid int value: %r") % value)
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if value < 0:
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raise argparse.ArgumentTypeError(_("input value %d is negative") %
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value)
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return value
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COMMANDS = {}
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# NOTE(amotoki): This is only to provide compatibility
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# to existing neutron CLI extensions. See bug 1706573 for detail.
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def _set_commands_dict_for_compat(apiversion, command_manager):
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global COMMANDS
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COMMANDS = {apiversion: dict((cmd, command_manager.find_command([cmd])[0])
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for cmd in command_manager.commands)}
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class BashCompletionCommand(command.Command):
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"""Prints all of the commands and options for bash-completion."""
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def take_action(self, parsed_args):
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pass
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class HelpAction(argparse.Action):
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"""Print help message including sub-commands
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Provide a custom action so the -h and --help options
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to the main app will print a list of the commands.
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The commands are determined by checking the CommandManager
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instance, passed in as the "default" value for the action.
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"""
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def __call__(self, parser, namespace, values, option_string=None):
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outputs = []
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max_len = 0
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app = self.default
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parser.print_help(app.stdout)
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app.stdout.write(_('\nCommands for API v%s:\n') % app.api_version)
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command_manager = app.command_manager
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for name, ep in sorted(command_manager):
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factory = ep.load()
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cmd = factory(self, None)
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one_liner = cmd.get_description().split('\n')[0]
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outputs.append((name, one_liner))
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max_len = max(len(name), max_len)
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for (name, one_liner) in outputs:
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app.stdout.write(' %s %s\n' % (name.ljust(max_len), one_liner))
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sys.exit(0)
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class NeutronShell(app.App):
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# verbose logging levels
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WARNING_LEVEL = 0
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INFO_LEVEL = 1
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DEBUG_LEVEL = 2
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CONSOLE_MESSAGE_FORMAT = '%(message)s'
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DEBUG_MESSAGE_FORMAT = '%(levelname)s: %(name)s %(message)s'
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log = logging.getLogger(__name__)
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def __init__(self, apiversion):
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namespace = NAMESPACE_MAP[apiversion]
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description = (__doc__.strip() +
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" (neutron CLI version: %s)" % __version__)
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super(NeutronShell, self).__init__(
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description=description,
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version=VERSION,
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command_manager=commandmanager.CommandManager(namespace), )
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self._register_extensions(VERSION)
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# Pop the 'complete' to correct the outputs of 'neutron help'.
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self.command_manager.commands.pop('complete')
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# This is instantiated in initialize_app() only when using
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# password flow auth
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self.auth_client = None
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self.api_version = apiversion
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_set_commands_dict_for_compat(apiversion, self.command_manager)
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def build_option_parser(self, description, version):
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"""Return an argparse option parser for this application.
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Subclasses may override this method to extend
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the parser with more global options.
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:param description: full description of the application
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:paramtype description: str
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:param version: version number for the application
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:paramtype version: str
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"""
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parser = argparse.ArgumentParser(
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description=description,
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add_help=False, )
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parser.add_argument(
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'--version',
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action='version',
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version=__version__, )
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parser.add_argument(
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'-v', '--verbose', '--debug',
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action='count',
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dest='verbose_level',
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default=self.DEFAULT_VERBOSE_LEVEL,
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help=_('Increase verbosity of output and show tracebacks on'
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' errors. You can repeat this option.'))
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parser.add_argument(
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'-q', '--quiet',
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action='store_const',
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dest='verbose_level',
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const=0,
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help=_('Suppress output except warnings and errors.'))
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parser.add_argument(
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'-h', '--help',
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action=HelpAction,
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nargs=0,
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default=self, # tricky
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help=_("Show this help message and exit."))
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parser.add_argument(
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'-r', '--retries',
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metavar="NUM",
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type=check_non_negative_int,
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default=0,
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help=_("How many times the request to the Neutron server should "
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"be retried if it fails. Defaults to 0."))
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# FIXME(bklei): this method should come from keystoneauth1
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self._append_global_identity_args(parser)
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return parser
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def _append_global_identity_args(self, parser):
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# FIXME(bklei): these are global identity (Keystone) arguments which
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# should be consistent and shared by all service clients. Therefore,
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# they should be provided by keystoneauth1. We will need to
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# refactor this code once this functionality is available in
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# keystoneauth1.
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#
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# Note: At that time we'll need to decide if we can just abandon
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# the deprecated args (--service-type and --endpoint-type).
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parser.add_argument(
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'--os-service-type', metavar='<os-service-type>',
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default=env('OS_NETWORK_SERVICE_TYPE', default='network'),
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help=_('Defaults to env[OS_NETWORK_SERVICE_TYPE] or "network".'))
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parser.add_argument(
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'--os-endpoint-type', metavar='<os-endpoint-type>',
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default=env('OS_ENDPOINT_TYPE', default='public'),
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help=_('Defaults to env[OS_ENDPOINT_TYPE] or "public".'))
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# FIXME(bklei): --service-type is deprecated but kept in for
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# backward compatibility.
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parser.add_argument(
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'--service-type', metavar='<service-type>',
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default=env('OS_NETWORK_SERVICE_TYPE', default='network'),
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help=_('DEPRECATED! Use --os-service-type.'))
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# FIXME(bklei): --endpoint-type is deprecated but kept in for
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# backward compatibility.
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parser.add_argument(
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'--endpoint-type', metavar='<endpoint-type>',
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default=env('OS_ENDPOINT_TYPE', default='public'),
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help=_('DEPRECATED! Use --os-endpoint-type.'))
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parser.add_argument(
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'--os-auth-strategy', metavar='<auth-strategy>',
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default=env('OS_AUTH_STRATEGY', default='keystone'),
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help=_('DEPRECATED! Only keystone is supported.'))
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parser.add_argument(
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'--os_auth_strategy',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-cloud', metavar='<cloud>',
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help=_('Defaults to env[OS_CLOUD].'))
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parser.add_argument(
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'--os-auth-url', metavar='<auth-url>',
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help=_('Authentication URL, defaults to env[OS_AUTH_URL].'))
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parser.add_argument(
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'--os_auth_url',
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help=argparse.SUPPRESS)
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project_name_group = parser.add_mutually_exclusive_group()
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project_name_group.add_argument(
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'--os-tenant-name', metavar='<auth-tenant-name>',
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help=_('Authentication tenant name, defaults to '
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'env[OS_TENANT_NAME].'))
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project_name_group.add_argument(
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'--os-project-name',
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metavar='<auth-project-name>',
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help=_('Another way to specify tenant name. '
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'This option is mutually exclusive with '
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' --os-tenant-name. '
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'Defaults to env[OS_PROJECT_NAME].'))
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parser.add_argument(
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'--os_tenant_name',
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help=argparse.SUPPRESS)
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project_id_group = parser.add_mutually_exclusive_group()
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project_id_group.add_argument(
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'--os-tenant-id', metavar='<auth-tenant-id>',
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help=_('Authentication tenant ID, defaults to '
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'env[OS_TENANT_ID].'))
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project_id_group.add_argument(
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'--os-project-id',
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metavar='<auth-project-id>',
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help=_('Another way to specify tenant ID. '
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'This option is mutually exclusive with '
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' --os-tenant-id. '
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'Defaults to env[OS_PROJECT_ID].'))
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parser.add_argument(
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'--os-username', metavar='<auth-username>',
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help=_('Authentication username, defaults to env[OS_USERNAME].'))
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parser.add_argument(
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'--os_username',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-user-id', metavar='<auth-user-id>',
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help=_('Authentication user ID (Env: OS_USER_ID)'))
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parser.add_argument(
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'--os_user_id',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-user-domain-id',
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metavar='<auth-user-domain-id>',
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help=_('OpenStack user domain ID. '
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'Defaults to env[OS_USER_DOMAIN_ID].'))
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parser.add_argument(
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'--os_user_domain_id',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-user-domain-name',
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metavar='<auth-user-domain-name>',
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help=_('OpenStack user domain name. '
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'Defaults to env[OS_USER_DOMAIN_NAME].'))
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parser.add_argument(
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'--os_user_domain_name',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os_project_id',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os_project_name',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-project-domain-id',
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metavar='<auth-project-domain-id>',
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help=_('Defaults to env[OS_PROJECT_DOMAIN_ID].'))
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parser.add_argument(
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'--os-project-domain-name',
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metavar='<auth-project-domain-name>',
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help=_('Defaults to env[OS_PROJECT_DOMAIN_NAME].'))
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parser.add_argument(
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'--os-cert',
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metavar='<certificate>',
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help=_("Path of certificate file to use in SSL "
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"connection. This file can optionally be "
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"prepended with the private key. Defaults "
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"to env[OS_CERT]."))
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parser.add_argument(
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'--os-cacert',
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metavar='<ca-certificate>',
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help=_("Specify a CA bundle file to use in "
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"verifying a TLS (https) server certificate. "
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"Defaults to env[OS_CACERT]."))
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parser.add_argument(
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'--os-key',
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metavar='<key>',
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help=_("Path of client key to use in SSL "
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"connection. This option is not necessary "
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"if your key is prepended to your certificate "
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"file. Defaults to env[OS_KEY]."))
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parser.add_argument(
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'--os-password', metavar='<auth-password>',
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help=_('Authentication password, defaults to env[OS_PASSWORD].'))
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parser.add_argument(
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'--os_password',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-region-name', metavar='<auth-region-name>',
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help=_('Authentication region name, defaults to '
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'env[OS_REGION_NAME].'))
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parser.add_argument(
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'--os_region_name',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--os-token', metavar='<token>',
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help=_('Authentication token, defaults to env[OS_TOKEN].'))
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parser.add_argument(
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'--os_token',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--http-timeout', metavar='<seconds>',
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default=env('OS_NETWORK_TIMEOUT', default=None), type=float,
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help=_('Timeout in seconds to wait for an HTTP response. Defaults '
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'to env[OS_NETWORK_TIMEOUT] or None if not specified.'))
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parser.add_argument(
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'--os-url', metavar='<url>',
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help=_('Defaults to env[OS_URL].'))
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parser.add_argument(
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'--os_url',
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help=argparse.SUPPRESS)
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parser.add_argument(
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'--insecure',
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action='store_true',
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default=env('NEUTRONCLIENT_INSECURE', default=False),
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help=_("Explicitly allow neutronclient to perform \"insecure\" "
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"SSL (https) requests. The server's certificate will "
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"not be verified against any certificate authorities. "
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"This option should be used with caution."))
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def _bash_completion(self):
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"""Prints all of the commands and options for bash-completion."""
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commands = set()
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options = set()
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for option, _action in self.parser._option_string_actions.items():
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options.add(option)
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for _name, _command in self.command_manager:
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commands.add(_name)
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cmd_factory = _command.load()
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cmd = cmd_factory(self, None)
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cmd_parser = cmd.get_parser('')
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for option, _action in cmd_parser._option_string_actions.items():
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options.add(option)
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print(' '.join(commands | options))
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def _register_extensions(self, version):
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for name, module in itertools.chain(
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client_extension._discover_via_entry_points()):
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self._extend_shell_commands(name, module, version)
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def _extend_shell_commands(self, name, module, version):
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classes = inspect.getmembers(module, inspect.isclass)
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for cls_name, cls in classes:
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if (issubclass(cls, client_extension.NeutronClientExtension) and
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hasattr(cls, 'shell_command')):
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cmd = cls.shell_command
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if hasattr(cls, 'versions'):
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if version not in cls.versions:
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continue
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try:
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name_prefix = "[%s]" % name
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cls.__doc__ = ("%s %s" % (name_prefix, cls.__doc__) if
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cls.__doc__ else name_prefix)
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self.command_manager.add_command(cmd, cls)
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except TypeError:
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pass
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def run(self, argv):
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"""Equivalent to the main program for the application.
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:param argv: input arguments and options
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:paramtype argv: list of str
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"""
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try:
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index = 0
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command_pos = -1
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help_pos = -1
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help_command_pos = -1
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for arg in argv:
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if arg == 'bash-completion' and help_command_pos == -1:
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self._bash_completion()
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return 0
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if arg in ('-h', '--help'):
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if help_pos == -1:
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help_pos = index
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# self.command_manager.commands contains 'help',
|
|
# so we need to check this first.
|
|
elif arg == 'help':
|
|
if help_command_pos == -1:
|
|
help_command_pos = index
|
|
elif arg in self.command_manager.commands:
|
|
if command_pos == -1:
|
|
command_pos = index
|
|
index = index + 1
|
|
if command_pos > -1 and help_pos > command_pos:
|
|
argv = ['help', argv[command_pos]]
|
|
if help_command_pos > -1 and command_pos == -1:
|
|
argv[help_command_pos] = '--help'
|
|
self.options, remainder = self.parser.parse_known_args(argv)
|
|
self.configure_logging()
|
|
self.interactive_mode = not remainder
|
|
self.initialize_app(remainder)
|
|
except Exception as err:
|
|
if self.options.verbose_level >= self.DEBUG_LEVEL:
|
|
self.log.exception(err)
|
|
raise
|
|
else:
|
|
self.log.error(err)
|
|
return 1
|
|
if self.interactive_mode:
|
|
_argv = [sys.argv[0]]
|
|
sys.argv = _argv
|
|
return self.interact()
|
|
return self.run_subcommand(remainder)
|
|
|
|
def run_subcommand(self, argv):
|
|
subcommand = self.command_manager.find_command(argv)
|
|
cmd_factory, cmd_name, sub_argv = subcommand
|
|
cmd = cmd_factory(self, self.options)
|
|
try:
|
|
self.prepare_to_run_command(cmd)
|
|
full_name = (cmd_name
|
|
if self.interactive_mode
|
|
else ' '.join([self.NAME, cmd_name])
|
|
)
|
|
cmd_parser = cmd.get_parser(full_name)
|
|
return run_command(cmd, cmd_parser, sub_argv)
|
|
except SystemExit:
|
|
print(_("Try 'neutron help %s' for more information.") %
|
|
cmd_name, file=sys.stderr)
|
|
raise
|
|
except Exception as e:
|
|
if self.options.verbose_level >= self.DEBUG_LEVEL:
|
|
self.log.exception("%s", e)
|
|
raise
|
|
self.log.error("%s", e)
|
|
return 1
|
|
|
|
def authenticate_user(self):
|
|
"""Confirm user authentication
|
|
|
|
Make sure the user has provided all of the authentication
|
|
info we need.
|
|
"""
|
|
cloud_config = os_client_config.OpenStackConfig().get_one_cloud(
|
|
cloud=self.options.os_cloud, argparse=self.options,
|
|
network_api_version=self.api_version,
|
|
verify=not self.options.insecure)
|
|
verify, cert = cloud_config.get_requests_verify_args()
|
|
|
|
# TODO(singhj): Remove dependancy on HTTPClient
|
|
# for the case of token-endpoint authentication
|
|
|
|
# When using token-endpoint authentication legacy
|
|
# HTTPClient will be used, otherwise SessionClient
|
|
# will be used.
|
|
if self.options.os_token and self.options.os_url:
|
|
auth = None
|
|
auth_session = None
|
|
else:
|
|
auth = cloud_config.get_auth()
|
|
|
|
auth_session = session.Session(
|
|
auth=auth, verify=verify, cert=cert,
|
|
timeout=self.options.http_timeout)
|
|
|
|
interface = self.options.os_endpoint_type or self.endpoint_type
|
|
if interface.endswith('URL'):
|
|
interface = interface[:-3]
|
|
self.client_manager = clientmanager.ClientManager(
|
|
retries=self.options.retries,
|
|
raise_errors=False,
|
|
session=auth_session,
|
|
url=self.options.os_url,
|
|
token=self.options.os_token,
|
|
region_name=cloud_config.get_region_name(),
|
|
api_version=cloud_config.get_api_version('network'),
|
|
service_type=cloud_config.get_service_type('network'),
|
|
service_name=cloud_config.get_service_name('network'),
|
|
endpoint_type=interface,
|
|
auth=auth,
|
|
insecure=not verify,
|
|
log_credentials=True)
|
|
return
|
|
|
|
def initialize_app(self, argv):
|
|
"""Global app init bits:
|
|
|
|
* set up API versions
|
|
* validate authentication info
|
|
"""
|
|
|
|
super(NeutronShell, self).initialize_app(argv)
|
|
|
|
# If the user is not asking for help, make sure they
|
|
# have given us auth.
|
|
cmd_name = None
|
|
if argv:
|
|
cmd_info = self.command_manager.find_command(argv)
|
|
cmd_factory, cmd_name, sub_argv = cmd_info
|
|
if self.interactive_mode or cmd_name != 'help':
|
|
self.authenticate_user()
|
|
|
|
def configure_logging(self):
|
|
"""Create logging handlers for any log output."""
|
|
root_logger = logging.getLogger('')
|
|
|
|
# Set up logging to a file
|
|
root_logger.setLevel(logging.DEBUG)
|
|
|
|
# Send higher-level messages to the console via stderr
|
|
console = logging.StreamHandler(self.stderr)
|
|
console_level = {self.WARNING_LEVEL: logging.WARNING,
|
|
self.INFO_LEVEL: logging.INFO,
|
|
self.DEBUG_LEVEL: logging.DEBUG,
|
|
}.get(self.options.verbose_level, logging.DEBUG)
|
|
# The default log level is INFO, in this situation, set the
|
|
# log level of the console to WARNING, to avoid displaying
|
|
# useless messages. This equals using "--quiet"
|
|
if console_level == logging.INFO:
|
|
console.setLevel(logging.WARNING)
|
|
else:
|
|
console.setLevel(console_level)
|
|
if logging.DEBUG == console_level:
|
|
formatter = logging.Formatter(self.DEBUG_MESSAGE_FORMAT)
|
|
else:
|
|
formatter = logging.Formatter(self.CONSOLE_MESSAGE_FORMAT)
|
|
logging.getLogger('iso8601.iso8601').setLevel(logging.WARNING)
|
|
logging.getLogger('urllib3.connectionpool').setLevel(logging.WARNING)
|
|
console.setFormatter(formatter)
|
|
root_logger.addHandler(console)
|
|
return
|
|
|
|
|
|
def main(argv=sys.argv[1:]):
|
|
try:
|
|
print(_("neutron CLI is deprecated and will be removed "
|
|
"in the future. Use openstack CLI instead."), file=sys.stderr)
|
|
return NeutronShell(NEUTRON_API_VERSION).run(
|
|
list(map(encodeutils.safe_decode, argv)))
|
|
except KeyboardInterrupt:
|
|
print(_("... terminating neutron client"), file=sys.stderr)
|
|
return 130
|
|
except exc.NeutronClientException:
|
|
return 1
|
|
except Exception as e:
|
|
print(e)
|
|
return 1
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main(sys.argv[1:]))
|