b592b42aa1
Oslo provides a function, to_slug() in strutils that is substantially similar to slugify() provided in utils by python-troveclient. Remove slugify() and use to_slug() instead. Change-Id: I97bc7cfc2c0e7d14e7617037bff431cdc1eee50f Closes-Bug: #1266127 Author: Christian Berendt <berendt@b1-systems.de>
47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
# Copyright 2012 OpenStack Foundation
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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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class HookableMixin(object):
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"""Mixin so classes can register and run hooks."""
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_hooks_map = {}
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@classmethod
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def add_hook(cls, hook_type, hook_func):
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if hook_type not in cls._hooks_map:
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cls._hooks_map[hook_type] = []
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cls._hooks_map[hook_type].append(hook_func)
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@classmethod
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def run_hooks(cls, hook_type, *args, **kwargs):
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hook_funcs = cls._hooks_map.get(hook_type) or []
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for hook_func in hook_funcs:
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hook_func(*args, **kwargs)
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def env(*vars, **kwargs):
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"""Returns environment variables.
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Returns the first environment variable set
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if none are non-empty, defaults to '' or keyword arg default.
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"""
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for v in vars:
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value = os.environ.get(v, None)
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if value:
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return value
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return kwargs.get('default', '')
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