c3f6e4f79a
This patch removes the options_iter function and prepares marconi's code base to play nice with oslo's config.generator. The replacement of lists with tuples is necessary to avoid oslo's config.generator to parse the globally defined options. In Marconi's case, we want it to use the registered entry_points. (This is a workaround). Change-Id: I56995fe16cd0b6e092b522dac3c32e4ec75bb269
67 lines
2.0 KiB
Python
67 lines
2.0 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.
|
|
|
|
"""utils: general-purpose utilities."""
|
|
|
|
from oslo.config import cfg
|
|
import six
|
|
|
|
|
|
def fields(d, names, pred=lambda x: True,
|
|
key_transform=lambda x: x, value_transform=lambda x: x):
|
|
"""Returns the entries in this dictionary with keys appearing in names.
|
|
:type d: dict
|
|
:type names: [a]
|
|
:param pred: a filter that is applied to the values of the dictionary.
|
|
:type pred: (a -> bool)
|
|
:param key_transform: a transform to apply to the key before returning it
|
|
:type key_transform: a -> a
|
|
:param value_transform: a transform to apply to the value before
|
|
returning it
|
|
:type value_transform: a -> a
|
|
:rtype: dict
|
|
|
|
"""
|
|
return dict((key_transform(k), value_transform(v))
|
|
for k, v in six.iteritems(d)
|
|
if k in names and pred(v))
|
|
|
|
|
|
_pytype_to_cfgtype = {
|
|
six.text_type: cfg.StrOpt,
|
|
str: cfg.StrOpt,
|
|
int: cfg.IntOpt,
|
|
bool: cfg.BoolOpt,
|
|
float: cfg.FloatOpt,
|
|
list: cfg.ListOpt,
|
|
dict: cfg.DictOpt
|
|
}
|
|
|
|
|
|
def dict_to_conf(options):
|
|
"""Converts a python dictionary to a list of oslo.config.cfg.Opt
|
|
|
|
:param options: The python dictionary to convert
|
|
:type options: dict
|
|
:returns: a list of options compatible with oslo.config
|
|
:rtype: [oslo.config.cfg.Opt]
|
|
"""
|
|
opts = []
|
|
for k, v in six.iteritems(options):
|
|
opt_type = _pytype_to_cfgtype[type(v)]
|
|
opts.append(opt_type(name=k, default=v))
|
|
|
|
return opts
|