deb-zaqar/zaqar/common/cli.py
Louis Taylor b006d033fd Port to oslo_log
This removes log.py from the oslo incubator and replaces it with the
graduated oslo_log module.

Change-Id: Ie0a41b4de9de25fdac3e925cd904e6cf6cd02627
2015-05-27 21:29:35 +00:00

61 lines
1.5 KiB
Python

# Copyright (c) 2013 Rackspace Hosting, Inc.
#
# 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.
from __future__ import print_function
import functools
import sys
from oslo_config import cfg
from oslo_log import log as logging
from zaqar.i18n import _
CONF = cfg.CONF
LOG = logging.getLogger(__name__)
def _fail(returncode, ex):
"""Handles terminal errors.
:param returncode: process return code to pass to sys.exit
:param ex: the error that occurred
"""
print(ex, file=sys.stderr)
LOG.exception(ex)
sys.exit(returncode)
def runnable(func):
"""Entry point wrapper.
Note: This call blocks until the process is killed
or interrupted.
"""
@functools.wraps(func)
def _wrapper():
try:
logging.register_options(CONF)
logging.setup(CONF, 'zaqar')
func()
except KeyboardInterrupt:
LOG.info(_(u'Terminating'))
except Exception as ex:
_fail(1, ex)
return _wrapper