bc11c4d7d8
Rather than pointing the 'project usage list' entry point directly to ListUsage, this makes a ListProjectUsage subclass to alias the desired command and still allow for changing behaviour or issuing a deprecation messages. This implementation simply sets a new 'deprecated' attribute in the command class that cliff will use to skip this command when generating help output. The actual skipping of the command in help output is dependant on https://review.openstack.org/147349 merging in cliff, this review will simply have no effect on help output until a version of cliff with that update is present. The deprecation message printed is somewhat generic until https://review.openstack.org/147381 is merged in cliff. Until that is merged, the deprecation message will not have the name of the actual command given by the user in it, but rather the text 'this command'. Closes-bug: #1406654 Change-Id: Ie08d4f88d71a660fca1862405351109cd0aa86b6
354 lines
12 KiB
Python
354 lines
12 KiB
Python
# Copyright 2012-2013 OpenStack Foundation
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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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"""Command-line interface to the OpenStack APIs"""
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import getpass
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import logging
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import sys
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import traceback
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from cliff import app
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from cliff import command
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from cliff import complete
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from cliff import help
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import openstackclient
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from openstackclient.common import clientmanager
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from openstackclient.common import commandmanager
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from openstackclient.common import exceptions as exc
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from openstackclient.common import timing
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from openstackclient.common import utils
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DEFAULT_DOMAIN = 'default'
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def prompt_for_password(prompt=None):
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"""Prompt user for a password
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Propmpt for a password if stdin is a tty.
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"""
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if not prompt:
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prompt = 'Password: '
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pw = None
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# If stdin is a tty, try prompting for the password
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if hasattr(sys.stdin, 'isatty') and sys.stdin.isatty():
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# Check for Ctl-D
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try:
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pw = getpass.getpass(prompt)
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except EOFError:
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pass
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# No password because we did't have a tty or nothing was entered
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if not pw:
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raise exc.CommandError(
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"No password entered, or found via --os-password or OS_PASSWORD",
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)
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return pw
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class OpenStackShell(app.App):
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CONSOLE_MESSAGE_FORMAT = '%(levelname)s: %(name)s %(message)s'
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log = logging.getLogger(__name__)
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timing_data = []
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def __init__(self):
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# Patch command.Command to add a default auth_required = True
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command.Command.auth_required = True
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command.Command.best_effort = False
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# But not help
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help.HelpCommand.auth_required = False
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complete.CompleteCommand.best_effort = True
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super(OpenStackShell, self).__init__(
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description=__doc__.strip(),
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version=openstackclient.__version__,
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command_manager=commandmanager.CommandManager('openstack.cli'))
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self.api_version = {}
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# Until we have command line arguments parsed, dump any stack traces
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self.dump_stack_trace = True
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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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# Assume TLS host certificate verification is enabled
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self.verify = True
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self.client_manager = None
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# NOTE(dtroyer): This hack changes the help action that Cliff
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# automatically adds to the parser so we can defer
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# its execution until after the api-versioned commands
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# have been loaded. There doesn't seem to be a
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# way to edit/remove anything from an existing parser.
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# Replace the cliff-added help.HelpAction to defer its execution
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self.DeferredHelpAction = None
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for a in self.parser._actions:
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if type(a) == help.HelpAction:
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# Found it, save and replace it
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self.DeferredHelpAction = a
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# These steps are argparse-implementation-dependent
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self.parser._actions.remove(a)
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if self.parser._option_string_actions['-h']:
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del self.parser._option_string_actions['-h']
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if self.parser._option_string_actions['--help']:
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del self.parser._option_string_actions['--help']
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# Make a new help option to just set a flag
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self.parser.add_argument(
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'-h', '--help',
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action='store_true',
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dest='deferred_help',
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default=False,
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help="Show this help message and exit",
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)
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def configure_logging(self):
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"""Configure logging for the app
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Cliff sets some defaults we don't want so re-work it a bit
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"""
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if self.options.debug:
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# --debug forces verbose_level 3
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# Set this here so cliff.app.configure_logging() can work
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self.options.verbose_level = 3
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super(OpenStackShell, self).configure_logging()
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root_logger = logging.getLogger('')
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# Set logging to the requested level
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if self.options.verbose_level == 0:
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# --quiet
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root_logger.setLevel(logging.ERROR)
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elif self.options.verbose_level == 1:
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# This is the default case, no --debug, --verbose or --quiet
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root_logger.setLevel(logging.WARNING)
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elif self.options.verbose_level == 2:
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# One --verbose
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root_logger.setLevel(logging.INFO)
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elif self.options.verbose_level >= 3:
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# Two or more --verbose
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root_logger.setLevel(logging.DEBUG)
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# Requests logs some stuff at INFO that we don't want
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# unless we have DEBUG
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requests_log = logging.getLogger("requests")
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# Other modules we don't want DEBUG output for
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cliff_log = logging.getLogger('cliff')
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stevedore_log = logging.getLogger('stevedore')
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iso8601_log = logging.getLogger("iso8601")
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if self.options.debug:
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# --debug forces traceback
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self.dump_stack_trace = True
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requests_log.setLevel(logging.DEBUG)
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cliff_log.setLevel(logging.DEBUG)
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else:
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self.dump_stack_trace = False
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requests_log.setLevel(logging.ERROR)
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cliff_log.setLevel(logging.ERROR)
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stevedore_log.setLevel(logging.ERROR)
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iso8601_log.setLevel(logging.ERROR)
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def run(self, argv):
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try:
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return super(OpenStackShell, self).run(argv)
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except Exception as e:
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if not logging.getLogger('').handlers:
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logging.basicConfig()
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if self.dump_stack_trace:
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self.log.error(traceback.format_exc(e))
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else:
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self.log.error('Exception raised: ' + str(e))
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return 1
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def build_option_parser(self, description, version):
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parser = super(OpenStackShell, self).build_option_parser(
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description,
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version)
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# service token auth argument
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parser.add_argument(
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'--os-url',
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metavar='<url>',
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default=utils.env('OS_URL'),
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help='Defaults to env[OS_URL]')
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# Global arguments
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parser.add_argument(
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'--os-region-name',
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metavar='<auth-region-name>',
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default=utils.env('OS_REGION_NAME'),
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help='Authentication region name (Env: OS_REGION_NAME)')
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parser.add_argument(
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'--os-cacert',
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metavar='<ca-bundle-file>',
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default=utils.env('OS_CACERT'),
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help='CA certificate bundle file (Env: OS_CACERT)')
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verify_group = parser.add_mutually_exclusive_group()
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verify_group.add_argument(
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'--verify',
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action='store_true',
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help='Verify server certificate (default)',
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)
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verify_group.add_argument(
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'--insecure',
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action='store_true',
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help='Disable server certificate verification',
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)
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parser.add_argument(
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'--os-default-domain',
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metavar='<auth-domain>',
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default=utils.env(
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'OS_DEFAULT_DOMAIN',
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default=DEFAULT_DOMAIN),
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help='Default domain ID, default=' +
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DEFAULT_DOMAIN +
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' (Env: OS_DEFAULT_DOMAIN)')
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parser.add_argument(
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'--timing',
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default=False,
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action='store_true',
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help="Print API call timing info",
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)
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return clientmanager.build_plugin_option_parser(parser)
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def initialize_app(self, argv):
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"""Global app init bits:
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* set up API versions
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* validate authentication info
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* authenticate against Identity if requested
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"""
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super(OpenStackShell, self).initialize_app(argv)
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# Save default domain
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self.default_domain = self.options.os_default_domain
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# Loop through extensions to get API versions
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for mod in clientmanager.PLUGIN_MODULES:
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version_opt = getattr(self.options, mod.API_VERSION_OPTION, None)
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if version_opt:
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api = mod.API_NAME
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self.api_version[api] = version_opt
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# Command groups deal only with major versions
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version = '.v' + version_opt.replace('.', '_').split('_')[0]
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cmd_group = 'openstack.' + api.replace('-', '_') + version
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self.command_manager.add_command_group(cmd_group)
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self.log.debug(
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'%(name)s API version %(version)s, cmd group %(group)s',
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{'name': api, 'version': version_opt, 'group': cmd_group}
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)
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# Commands that span multiple APIs
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self.command_manager.add_command_group(
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'openstack.common')
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# This is the naive extension implementation referred to in
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# blueprint 'client-extensions'
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# Extension modules can register their commands in an
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# 'openstack.extension' entry point group:
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# entry_points={
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# 'openstack.extension': [
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# 'list_repo=qaz.github.repo:ListRepo',
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# 'show_repo=qaz.github.repo:ShowRepo',
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# ],
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# }
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self.command_manager.add_command_group(
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'openstack.extension')
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# call InitializeXxx() here
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# set up additional clients to stuff in to client_manager??
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# Handle deferred help and exit
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if self.options.deferred_help:
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self.DeferredHelpAction(self.parser, self.parser, None, None)
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# Set up common client session
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if self.options.os_cacert:
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self.verify = self.options.os_cacert
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else:
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self.verify = not self.options.insecure
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self.client_manager = clientmanager.ClientManager(
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auth_options=self.options,
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verify=self.verify,
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api_version=self.api_version,
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pw_func=prompt_for_password,
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)
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def prepare_to_run_command(self, cmd):
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"""Set up auth and API versions"""
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self.log.info(
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'command: %s -> %s.%s',
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getattr(cmd, 'cmd_name', '<none>'),
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cmd.__class__.__module__,
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cmd.__class__.__name__,
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)
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if cmd.auth_required and cmd.best_effort:
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try:
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# Trigger the Identity client to initialize
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self.client_manager.auth_ref
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except Exception:
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pass
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return
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def clean_up(self, cmd, result, err):
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self.log.debug('clean_up %s', cmd.__class__.__name__)
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if err:
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self.log.debug('got an error: %s', err)
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# Process collected timing data
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if self.options.timing:
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# Loop through extensions
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for mod in self.ext_modules:
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client = getattr(self.client_manager, mod.API_NAME)
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if hasattr(client, 'get_timings'):
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self.timing_data.extend(client.get_timings())
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# Use the Timing pseudo-command to generate the output
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tcmd = timing.Timing(self, self.options)
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tparser = tcmd.get_parser('Timing')
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# If anything other than prettytable is specified, force csv
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format = 'table'
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# Check the formatter used in the actual command
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if hasattr(cmd, 'formatter') \
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and cmd.formatter != cmd._formatter_plugins['table'].obj:
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format = 'csv'
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sys.stdout.write('\n')
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targs = tparser.parse_args(['-f', format])
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tcmd.run(targs)
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def main(argv=sys.argv[1:]):
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return OpenStackShell().run(argv)
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if __name__ == "__main__":
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sys.exit(main(sys.argv[1:]))
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