65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2011 OpenStack LLC.
|
|
# 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.
|
|
|
|
"""
|
|
System-level utilities and helper functions.
|
|
"""
|
|
|
|
import logging
|
|
import random
|
|
import shlex
|
|
|
|
from eventlet.green import subprocess
|
|
from eventlet import greenthread
|
|
|
|
from heat.openstack.common import exception
|
|
from heat.openstack.common.gettextutils import _
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def int_from_bool_as_string(subject):
|
|
"""
|
|
Interpret a string as a boolean and return either 1 or 0.
|
|
|
|
Any string value in:
|
|
('True', 'true', 'On', 'on', '1')
|
|
is interpreted as a boolean True.
|
|
|
|
Useful for JSON-decoded stuff and config file parsing
|
|
"""
|
|
return bool_from_string(subject) and 1 or 0
|
|
|
|
|
|
def bool_from_string(subject):
|
|
"""
|
|
Interpret a string as a boolean.
|
|
|
|
Any string value in:
|
|
('True', 'true', 'On', 'on', 'Yes', 'yes', '1')
|
|
is interpreted as a boolean True.
|
|
|
|
Useful for JSON-decoded stuff and config file parsing
|
|
"""
|
|
if isinstance(subject, bool):
|
|
return subject
|
|
if isinstance(subject, basestring):
|
|
if subject.strip().lower() in ('true', 'on', 'yes', '1'):
|
|
return True
|
|
return False
|