639 lines
25 KiB
Python
639 lines
25 KiB
Python
# Copyright 2011 OpenStack Foundation
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# Copyright 2013 Rackspace Hosting
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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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Command-line interface to the OpenStack Trove API.
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"""
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from __future__ import print_function
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import argparse
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import glob
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import imp
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import itertools
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import os
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import pkgutil
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import sys
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import logging
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import pkg_resources
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import six
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import troveclient
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import troveclient.extension
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from troveclient import client
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from troveclient.openstack.common import strutils
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from troveclient.openstack.common.apiclient import exceptions as exc
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from troveclient.openstack.common import gettextutils as gtu
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from troveclient import utils
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from troveclient.v1 import shell as shell_v1
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DEFAULT_OS_DATABASE_API_VERSION = "1.0"
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DEFAULT_TROVE_ENDPOINT_TYPE = 'publicURL'
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DEFAULT_TROVE_SERVICE_TYPE = 'database'
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logger = logging.getLogger(__name__)
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class TroveClientArgumentParser(argparse.ArgumentParser):
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def __init__(self, *args, **kwargs):
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super(TroveClientArgumentParser, self).__init__(*args, **kwargs)
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def error(self, message):
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"""error(message: string)
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Prints a usage message incorporating the message to stderr and
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exits.
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"""
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self.print_usage(sys.stderr)
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#FIXME(lzyeval): if changes occur in argparse.ArgParser._check_value
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choose_from = ' (choose from'
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progparts = self.prog.partition(' ')
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self.exit(2, "error: %(errmsg)s\nTry '%(mainp)s help %(subp)s'"
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" for more information.\n" %
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{'errmsg': message.split(choose_from)[0],
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'mainp': progparts[0],
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'subp': progparts[2]})
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class OpenStackTroveShell(object):
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def get_base_parser(self):
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parser = TroveClientArgumentParser(
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prog='trove',
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description=__doc__.strip(),
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epilog='See "trove help COMMAND" '
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'for help on a specific command.',
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add_help=False,
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formatter_class=OpenStackHelpFormatter,
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)
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# Global arguments
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parser.add_argument('-h', '--help',
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action='store_true',
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help=argparse.SUPPRESS)
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parser.add_argument('--version',
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action='version',
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version=troveclient.__version__)
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parser.add_argument('--debug',
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action='store_true',
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default=utils.env('TROVECLIENT_DEBUG',
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default=False),
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help="Print debugging output")
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parser.add_argument('--os-username',
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metavar='<auth-user-name>',
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default=utils.env('OS_USERNAME',
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'TROVE_USERNAME'),
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help='Defaults to env[OS_USERNAME].')
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parser.add_argument('--os_username',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-password',
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metavar='<auth-password>',
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default=utils.env('OS_PASSWORD',
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'TROVE_PASSWORD'),
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help='Defaults to env[OS_PASSWORD].')
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parser.add_argument('--os_password',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-tenant-name',
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metavar='<auth-tenant-name>',
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default=utils.env('OS_TENANT_NAME',
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'TROVE_PROJECT_ID'),
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help='Defaults to env[OS_TENANT_NAME].')
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parser.add_argument('--os_tenant_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-tenant-id',
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metavar='<auth-tenant-id>',
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default=utils.env('OS_TENANT_ID',
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'TROVE_TENANT_ID'),
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help='Defaults to env[OS_TENANT_ID].')
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parser.add_argument('--os_tenant_id',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-auth-url',
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metavar='<auth-url>',
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default=utils.env('OS_AUTH_URL',
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'TROVE_URL'),
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help='Defaults to env[OS_AUTH_URL].')
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parser.add_argument('--os_auth_url',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-region-name',
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metavar='<region-name>',
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default=utils.env('OS_REGION_NAME',
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'TROVE_REGION_NAME'),
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help='Defaults to env[OS_REGION_NAME].')
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parser.add_argument('--os_region_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--service-type',
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metavar='<service-type>',
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default=utils.env('OS_SERVICE_TYPE',
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'TROVE_SERVICE_TYPE'),
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help='Defaults to database for most actions')
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parser.add_argument('--service_type',
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help=argparse.SUPPRESS)
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parser.add_argument('--service-name',
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metavar='<service-name>',
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default=utils.env('TROVE_SERVICE_NAME'),
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help='Defaults to env[TROVE_SERVICE_NAME]')
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parser.add_argument('--service_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--bypass-url',
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metavar='<bypass-url>',
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default=utils.env('TROVE_BYPASS_URL'),
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help='Defaults to env[TROVE_BYPASS_URL]')
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parser.add_argument('--bypass_url',
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help=argparse.SUPPRESS)
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parser.add_argument('--database-service-name',
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metavar='<database-service-name>',
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default=utils.env('TROVE_DATABASE_SERVICE_NAME'),
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help='Defaults to env'
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'[TROVE_DATABASE_SERVICE_NAME]')
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parser.add_argument('--database_service_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--endpoint-type',
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metavar='<endpoint-type>',
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default=utils.env(
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'TROVE_ENDPOINT_TYPE',
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default=DEFAULT_TROVE_ENDPOINT_TYPE),
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help='Defaults to env[TROVE_ENDPOINT_TYPE] or '
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+ DEFAULT_TROVE_ENDPOINT_TYPE + '.')
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parser.add_argument('--endpoint_type',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-database-api-version',
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metavar='<database-api-ver>',
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default=utils.env(
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'OS_DATABASE_API_VERSION',
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default=DEFAULT_OS_DATABASE_API_VERSION),
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help='Accepts 1,defaults '
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'to env[OS_DATABASE_API_VERSION].')
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parser.add_argument('--os_database_api_version',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-cacert',
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metavar='<ca-certificate>',
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default=utils.env('OS_CACERT', default=None),
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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('--insecure',
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default=utils.env('TROVECLIENT_INSECURE',
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default=False),
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action='store_true',
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help=argparse.SUPPRESS)
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parser.add_argument('--retries',
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metavar='<retries>',
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type=int,
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default=0,
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help='Number of retries.')
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parser.add_argument('--json', '--os-json-output',
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dest='json',
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action='store_true',
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default=utils.env('OS_JSON_OUTPUT',
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default=False),
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help='Output json instead of prettyprint. '
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'Defaults to OS_JSON_OUTPUT')
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return parser
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def get_subcommand_parser(self, version):
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parser = self.get_base_parser()
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self.subcommands = {}
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subparsers = parser.add_subparsers(metavar='<subcommand>')
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try:
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actions_module = {
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'1.0': shell_v1,
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}[version]
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except KeyError:
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actions_module = shell_v1
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self._find_actions(subparsers, actions_module)
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self._find_actions(subparsers, self)
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for extension in self.extensions:
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self._find_actions(subparsers, extension.module)
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self._add_bash_completion_subparser(subparsers)
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return parser
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def _discover_extensions(self, version):
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extensions = []
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for name, module in itertools.chain(
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self._discover_via_python_path(),
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self._discover_via_contrib_path(version),
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self._discover_via_entry_points()):
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extension = troveclient.extension.Extension(name, module)
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extensions.append(extension)
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return extensions
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def _discover_via_python_path(self):
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for (module_loader, name, _ispkg) in pkgutil.iter_modules():
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if name.endswith('_python_troveclient_ext'):
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if not hasattr(module_loader, 'load_module'):
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# Python 2.6 compat: actually get an ImpImporter obj
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module_loader = module_loader.find_module(name)
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module = module_loader.load_module(name)
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if hasattr(module, 'extension_name'):
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name = module.extension_name
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yield name, module
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def _discover_via_contrib_path(self, version):
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module_path = os.path.dirname(os.path.abspath(__file__))
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version_str = "v%s" % version.replace('.', '_')
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version_pkg = 'v1' if version_str == 'v1_0' else version_str
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ext_path = os.path.join(module_path, version_pkg, 'contrib')
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ext_glob = os.path.join(ext_path, "*.py")
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for ext_path in glob.iglob(ext_glob):
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name = os.path.basename(ext_path)[:-3]
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if name == "__init__":
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continue
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module = imp.load_source(name, ext_path)
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yield name, module
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def _discover_via_entry_points(self):
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for ep in pkg_resources.iter_entry_points('troveclient.extension'):
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name = ep.name
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module = ep.load()
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yield name, module
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def _add_bash_completion_subparser(self, subparsers):
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subparser = subparsers.add_parser(
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'bash_completion',
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add_help=False,
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formatter_class=OpenStackHelpFormatter)
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self.subcommands['bash_completion'] = subparser
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subparser.set_defaults(func=self.do_bash_completion)
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def _find_actions(self, subparsers, actions_module):
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for attr in (a for a in dir(actions_module) if a.startswith('do_')):
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# I prefer to be hyphen-separated instead of underscores.
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command = attr[3:].replace('_', '-')
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callback = getattr(actions_module, attr)
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desc = callback.__doc__ or ''
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help = desc.strip().split('\n')[0]
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arguments = getattr(callback, 'arguments', [])
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subparser = subparsers.add_parser(
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command,
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help=help,
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description=desc,
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add_help=False,
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formatter_class=OpenStackHelpFormatter)
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subparser.add_argument('-h', '--help',
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action='help',
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help=argparse.SUPPRESS,)
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self.subcommands[command] = subparser
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for (args, kwargs) in arguments:
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subparser.add_argument(*args, **kwargs)
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subparser.set_defaults(func=callback)
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def setup_debugging(self, debug):
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if not debug:
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return
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streamhandler = logging.StreamHandler()
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streamformat = "%(levelname)s (%(module)s:%(lineno)d) %(message)s"
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streamhandler.setFormatter(logging.Formatter(streamformat))
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logger.setLevel(logging.DEBUG)
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logger.addHandler(streamhandler)
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def main(self, argv):
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# Parse args once to find version and debug settings
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parser = self.get_base_parser()
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(options, args) = parser.parse_known_args(argv)
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self.setup_debugging(options.debug)
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# build available subcommands based on version
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self.extensions = self._discover_extensions(
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options.os_database_api_version)
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self._run_extension_hooks('__pre_parse_args__')
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subcommand_parser = self.get_subcommand_parser(
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options.os_database_api_version)
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self.parser = subcommand_parser
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if options.help or not argv:
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subcommand_parser.print_help()
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return 0
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args = subcommand_parser.parse_args(argv)
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self._run_extension_hooks('__post_parse_args__', args)
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# Short-circuit and deal with help right away.
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if args.func == self.do_help:
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self.do_help(args)
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return 0
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elif args.func == self.do_bash_completion:
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self.do_bash_completion(args)
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return 0
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(os_username, os_password, os_tenant_name, os_auth_url,
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os_region_name, os_tenant_id, endpoint_type, insecure,
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service_type, service_name, database_service_name,
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cacert, bypass_url) = (
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args.os_username, args.os_password,
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args.os_tenant_name, args.os_auth_url,
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args.os_region_name, args.os_tenant_id,
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args.endpoint_type, args.insecure,
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args.service_type, args.service_name,
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args.database_service_name,
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args.os_cacert, args.bypass_url)
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if not endpoint_type:
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endpoint_type = DEFAULT_TROVE_ENDPOINT_TYPE
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if not service_type:
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service_type = DEFAULT_TROVE_SERVICE_TYPE
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service_type = utils.get_service_type(args.func) or service_type
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#FIXME(usrleon): Here should be restrict for project id same as
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# for os_username or os_password but for compatibility it is not.
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if not utils.isunauthenticated(args.func):
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if not os_username:
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raise exc.CommandError(
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"You must provide a username "
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"via either --os-username or env[OS_USERNAME]")
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if not os_password:
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raise exc.CommandError("You must provide a password "
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"via either --os-password or via "
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"env[OS_PASSWORD]")
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if not (os_tenant_name or os_tenant_id):
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raise exc.CommandError("You must provide a tenant_id "
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"via either --os-tenant-id or "
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"env[OS_TENANT_ID]")
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if not os_auth_url:
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raise exc.CommandError(
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"You must provide an auth url "
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"via either --os-auth-url or env[OS_AUTH_URL]")
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if not (os_tenant_name or os_tenant_id):
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raise exc.CommandError(
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"You must provide a tenant_id "
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"via either --os-tenant-id or env[OS_TENANT_ID]")
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if not os_auth_url:
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raise exc.CommandError(
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"You must provide an auth url "
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"via either --os-auth-url or env[OS_AUTH_URL]")
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self.cs = client.Client(options.os_database_api_version, os_username,
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os_password, os_tenant_name, os_auth_url,
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insecure, region_name=os_region_name,
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tenant_id=os_tenant_id,
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endpoint_type=endpoint_type,
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extensions=self.extensions,
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service_type=service_type,
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service_name=service_name,
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database_service_name=database_service_name,
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retries=options.retries,
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http_log_debug=args.debug,
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cacert=cacert,
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bypass_url=bypass_url)
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try:
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if not utils.isunauthenticated(args.func):
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self.cs.authenticate()
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except exc.Unauthorized:
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raise exc.CommandError("Invalid OpenStack Trove credentials.")
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except exc.AuthorizationFailure:
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raise exc.CommandError("Unable to authorize user")
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endpoint_api_version = self.cs.get_database_api_version_from_endpoint()
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if endpoint_api_version != options.os_database_api_version:
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msg = (("Database API version is set to %s "
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"but you are accessing a %s endpoint. "
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"Change its value via either --os-database-api-version "
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"or env[OS_DATABASE_API_VERSION]")
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% (options.os_database_api_version, endpoint_api_version))
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#raise exc.InvalidAPIVersion(msg)
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raise exc.UnsupportedVersion(msg)
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# Override printing to json output
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if args.json:
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utils.json_output = True
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else:
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utils.json_output = False
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args.func(self.cs, args)
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def _run_extension_hooks(self, hook_type, *args, **kwargs):
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"""Run hooks for all registered extensions."""
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for extension in self.extensions:
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extension.run_hooks(hook_type, *args, **kwargs)
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def do_bash_completion(self, args):
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"""Print arguments for bash_completion.
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Prints all of the commands and options to stdout so that the
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trove.bash_completion script doesn't have to hard code them.
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"""
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commands = set()
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options = set()
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for sc_str, sc in list(self.subcommands.items()):
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commands.add(sc_str)
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for option in list(sc._optionals._option_string_actions.keys()):
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options.add(option)
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commands.remove('bash-completion')
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commands.remove('bash_completion')
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print(' '.join(commands | options))
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@utils.arg('command', metavar='<subcommand>', nargs='?',
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help='Display help for <subcommand>')
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def do_help(self, args):
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"""
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Display help about this program or one of its subcommands.
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"""
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if args.command:
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if args.command in self.subcommands:
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self.subcommands[args.command].print_help()
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else:
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raise exc.CommandError("'%s' is not a valid subcommand" %
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args.command)
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else:
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self.parser.print_help()
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# I'm picky about my shell help.
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class OpenStackHelpFormatter(argparse.HelpFormatter):
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def start_section(self, heading):
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# Title-case the headings
|
|
heading = '%s%s' % (heading[0].upper(), heading[1:])
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|
super(OpenStackHelpFormatter, self).start_section(heading)
|
|
|
|
def _format_usage(self, usage, actions, groups, prefix):
|
|
"""
|
|
Print positionals before optionals in the usage string to help
|
|
users avoid argparse nargs='*' problems.
|
|
|
|
ex: 'trove create --databases <db_name> <name> <flavor_id>'
|
|
fails with 'error: too few arguments', but this succeeds:
|
|
'trove create <name> <flavor_id> --databases <db_name>'
|
|
"""
|
|
if prefix is None:
|
|
prefix = gtu._('usage: ')
|
|
|
|
# if usage is specified, use that
|
|
if usage is not None:
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|
usage = usage % dict(prog=self._prog)
|
|
|
|
# if no optionals or positionals are available, usage is just prog
|
|
elif usage is None and not actions:
|
|
usage = '%(prog)s' % dict(prog=self._prog)
|
|
|
|
# if optionals and positionals are available, calculate usage
|
|
elif usage is None:
|
|
prog = '%(prog)s' % dict(prog=self._prog)
|
|
|
|
# split optionals from positionals
|
|
optionals = []
|
|
positionals = []
|
|
for action in actions:
|
|
if action.option_strings:
|
|
optionals.append(action)
|
|
else:
|
|
positionals.append(action)
|
|
|
|
# build full usage string
|
|
format = self._format_actions_usage
|
|
action_usage = format(optionals + positionals, groups)
|
|
usage = ' '.join([s for s in [prog, action_usage] if s])
|
|
|
|
# wrap the usage parts if it's too long
|
|
text_width = self._width - self._current_indent
|
|
if len(prefix) + len(usage) > text_width:
|
|
|
|
# break usage into wrappable parts
|
|
part_regexp = r'\(.*?\)+|\[.*?\]+|\S+'
|
|
opt_usage = format(optionals, groups)
|
|
pos_usage = format(positionals, groups)
|
|
opt_parts = argparse._re.findall(part_regexp, opt_usage)
|
|
pos_parts = argparse._re.findall(part_regexp, pos_usage)
|
|
assert ' '.join(opt_parts) == opt_usage
|
|
assert ' '.join(pos_parts) == pos_usage
|
|
|
|
# helper for wrapping lines
|
|
def get_lines(parts, indent, prefix=None):
|
|
lines = []
|
|
line = []
|
|
if prefix is not None:
|
|
line_len = len(prefix) - 1
|
|
else:
|
|
line_len = len(indent) - 1
|
|
for part in parts:
|
|
if line_len + 1 + len(part) > text_width:
|
|
lines.append(indent + ' '.join(line))
|
|
line = []
|
|
line_len = len(indent) - 1
|
|
line.append(part)
|
|
line_len += len(part) + 1
|
|
if line:
|
|
lines.append(indent + ' '.join(line))
|
|
if prefix is not None:
|
|
lines[0] = lines[0][len(indent):]
|
|
return lines
|
|
|
|
# if prog is short, follow it with optionals or positionals
|
|
if len(prefix) + len(prog) <= 0.75 * text_width:
|
|
indent = ' ' * (len(prefix) + len(prog) + 1)
|
|
if pos_parts:
|
|
if prog == 'trove':
|
|
# "trove help" called without any subcommand
|
|
lines = get_lines([prog] + opt_parts, indent,
|
|
prefix)
|
|
lines.extend(get_lines(pos_parts, indent))
|
|
else:
|
|
lines = get_lines([prog] + pos_parts, indent,
|
|
prefix)
|
|
lines.extend(get_lines(opt_parts, indent))
|
|
elif opt_parts:
|
|
lines = get_lines([prog] + opt_parts, indent, prefix)
|
|
else:
|
|
lines = [prog]
|
|
|
|
# if prog is long, put it on its own line
|
|
else:
|
|
indent = ' ' * len(prefix)
|
|
parts = pos_parts + opt_parts
|
|
lines = get_lines(parts, indent)
|
|
if len(lines) > 1:
|
|
lines = []
|
|
lines.extend(get_lines(pos_parts, indent))
|
|
lines.extend(get_lines(opt_parts, indent))
|
|
lines = [prog] + lines
|
|
|
|
# join lines into usage
|
|
usage = '\n'.join(lines)
|
|
|
|
# prefix with 'usage:'
|
|
return '%s%s\n\n' % (prefix, usage)
|
|
|
|
|
|
def main():
|
|
try:
|
|
if sys.version_info >= (3, 0):
|
|
OpenStackTroveShell().main(sys.argv[1:])
|
|
else:
|
|
OpenStackTroveShell().main(map(strutils.safe_decode,
|
|
sys.argv[1:]))
|
|
except KeyboardInterrupt:
|
|
print("... terminating trove client", file=sys.stderr)
|
|
sys.exit(130)
|
|
except Exception as e:
|
|
logger.debug(e, exc_info=1)
|
|
message = e.message
|
|
if not isinstance(message, six.string_types):
|
|
message = str(message)
|
|
print("ERROR: %s" % strutils.safe_encode(message), file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|