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# Copyright 2014 Rackspace Hosting
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
def initialize(extra_opts=None, pre_logging=None):
# Import only the modules necessary to initialize logging and determine if
# debug_utils are enabled.
import sys
from oslo_log import log as logging
from trove.common import cfg
from trove.common import debug_utils
conf = cfg.CONF
if extra_opts:
conf.register_cli_opts(extra_opts)
cfg.parse_args(sys.argv)
if pre_logging:
pre_logging(conf)
logging.setup(conf, None)
debug_utils.setup()
# rpc module must be loaded after decision about thread monkeypatching
# because if thread module is not monkeypatched we can't use eventlet
# executor from oslo_messaging library.
from trove import rpc
rpc.init(conf)
# Initialize Trove database.
from trove.db import get_db_api
get_db_api().configure_db()
return conf # May be used by other scripts
def with_initialize(main_function=None, **kwargs):
"""
Decorates a script main function to make sure that dependency imports and
initialization happens correctly.
"""
def apply(main_function):
def run():
conf = initialize(**kwargs)
return main_function(conf)
return run
if main_function:
return apply(main_function)
else:
return apply
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