5834af13d7
This updates oslo.config to be in-line with global-requirements, and renames all the old references of 'oslo.config' to the newer oslo_config. Change-Id: I68d8f67d37bca918ce1193c2a19e00f7ed4f6caa
94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import six
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from oslo_config import cfg
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from oslo_log import log
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LOG = log.getLogger(__name__)
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CONF = cfg.CONF
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CONF.register_opts([
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cfg.StrOpt('working_directory',
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default='~/.storyboard',
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help='The root path to storyboard\'s working directory.')
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])
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WORKING_DIRECTORY = None
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def get_working_directory():
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"""Returns the path to our runtime working directory, making sure it exists
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if necessary.
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"""
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global WORKING_DIRECTORY
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if not WORKING_DIRECTORY:
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# Expand users, backlinks, and references.
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path = os.path.expanduser(CONF.working_directory)
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path = os.path.realpath(path)
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try:
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try:
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os.makedirs(path)
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except OSError as e:
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if e.errno != 17:
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# Not an already exists error
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raise
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# Now that we know it exists, assert that it's a directory
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if not os.path.isdir(path):
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raise Exception("%s is not a directory." % (path,))
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# Make sure we can write to it.
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if not os.access(path, os.W_OK):
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raise Exception("%s is not writeable." % (path,))
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except (OSError, Exception) as e:
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# We're expecting OSError or Exception here. Recast and resend,
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# so that any part of the application can respond.
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message = six.text_type(e)
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LOG.error("Cannot create working directory: %s" % (message,))
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raise IOError(message)
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# Use this directory and return.
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WORKING_DIRECTORY = path
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return WORKING_DIRECTORY
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def get_plugin_directory(plugin_name):
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"""Resolve and create a working directory for a third party plugin.
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:param plugin_name: A unique plugin name.
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:return: The fully qualified path of the working directory.
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"""
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directory = os.path.join(get_working_directory(), 'plugin', plugin_name)
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if not os.path.exists(directory):
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try:
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os.makedirs(directory)
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except (OSError, Exception) as e:
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message = six.text_type(e)
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LOG.error("Cannot create plugin directory: %s" % (message,))
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raise IOError(message)
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return directory
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