4c65944c7b
Now we have loading functions for both auth and session we want to mix them into the same loading namespace so that users only have to import one thing. To do this we need to disambiguate the names as they are purposefully similar. Change-Id: Ic6b874bc878e72c0399f4ad91a8dcbe9e014576e
106 lines
3.2 KiB
Python
106 lines
3.2 KiB
Python
# 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 itertools
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import os
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try:
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from oslo_config import cfg
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except ImportError:
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cfg = None
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from keystoneauth1 import _utils as utils
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__all__ = ['Opt']
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class Opt(object):
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@utils.positional()
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def __init__(self,
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name,
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type=str,
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help=None,
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secret=False,
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dest=None,
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deprecated=None,
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default=None,
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metavar=None,
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required=False):
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if not callable(type):
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raise TypeError('type must be callable')
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if dest is None:
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dest = name.replace('-', '_')
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self.name = name
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self.type = type
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self.help = help
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self.secret = secret
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self.required = required
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self.dest = dest
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self.deprecated = [] if deprecated is None else deprecated
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self.default = default
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self.metavar = metavar
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def __repr__(self):
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return '<Opt: %s>' % self.name
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def _to_oslo_opt(self):
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if not cfg:
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raise ImportError("oslo.config is not an automatic dependency of "
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"keystoneauth. If you wish to use oslo.config "
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"you need to import it into your application's "
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"requirements file. ")
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deprecated_opts = [o._to_oslo_opt() for o in self.deprecated]
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return cfg.Opt(name=self.name,
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type=self.type,
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help=self.help,
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secret=self.secret,
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required=self.required,
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dest=self.dest,
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deprecated_opts=deprecated_opts,
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metavar=self.metavar)
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def __eq__(self, other):
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return (type(self) == type(other) and
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self.name == other.name and
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self.type == other.type and
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self.help == other.help and
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self.secret == other.secret and
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self.required == other.required and
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self.dest == other.dest and
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self.deprecated == other.deprecated and
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self.default == other.default and
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self.metavar == other.metavar)
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@property
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def _all_opts(self):
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return itertools.chain([self], self.deprecated)
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@property
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def argparse_args(self):
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return ['--os-%s' % o.name for o in self._all_opts]
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@property
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def argparse_default(self):
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# select the first ENV that is not false-y or return None
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for o in self._all_opts:
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v = os.environ.get('OS_%s' % o.name.replace('-', '_').upper())
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if v:
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return v
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return self.default
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