49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012 Yahoo! Inc. 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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import os
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from devstack import log as logging
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LOG = logging.getLogger("devstack.environment")
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def get():
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return dict(os.environ)
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def set(key, value):
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# This is really screwy, python is really odd in this area
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# See: from http://docs.python.org/library/os.html
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# Calling putenv() directly does not change os.environ, so it's better to modify os.environ.
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if key is not None:
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LOG.audit("Setting environment key %r to value %r" % (str(key), str(value)))
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os.environ[str(key)] = str(value)
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def get_key(key, default_value=None):
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if not key:
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return default_value
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key = str(key)
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LOG.debug("Looking up environment variable %r" % (key))
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value = get().get(key)
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if value is None:
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LOG.debug("Could not find anything in environment variable %r" % (key))
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value = default_value
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else:
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LOG.audit("Found %r in environment variable %r" % (value, key))
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return value
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