
sphinxpolicygen is calling the generate_sample cli entrypoint when we aren't actually the command being run. This can cause problems if the consuming project has cli args that get registered on import of their modules because we may have parsed args before those modules get imported. This results in an exception because oslo.config won't allow cli args to be registered after they've been parsed once. This change makes use of the existing parameter to generate_sample that allows us to pass in a local config object on which to register the cli args. This way we can parse them without affecting the global config object. This was the only place I could find that we were doing something like this so I believe it should eliminate the problem. Change-Id: I8e9f28b0a15d1ed092d72b983be74fe281708fbe
95 lines
3.3 KiB
Python
95 lines
3.3 KiB
Python
# Copyright 2015 Hewlett-Packard Development Company, L.P.
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# Copyright 2016 Red Hat, Inc.
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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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"""Generate a sample policy file."""
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import os
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from oslo_config import cfg
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from sphinx.util import logging
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from oslo_policy import generator
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LOG = logging.getLogger(__name__)
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def generate_sample(app):
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"""Generate a sample policy file."""
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if not app.config.policy_generator_config_file:
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LOG.warning("No policy_generator_config_file is specified, "
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"skipping sample policy generation")
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return
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if isinstance(app.config.policy_generator_config_file, list):
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for config_file, base_name in app.config.policy_generator_config_file:
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if base_name is None:
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base_name = _get_default_basename(config_file)
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_generate_sample(app, config_file, base_name)
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else:
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_generate_sample(app,
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app.config.policy_generator_config_file,
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app.config.sample_policy_basename)
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def _get_default_basename(config_file):
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return os.path.splitext(os.path.basename(config_file))[0]
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def _generate_sample(app, policy_file, base_name):
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def info(msg):
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LOG.info('[%s] %s' % (__name__, msg))
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# If we are given a file that isn't an absolute path, look for it
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# in the source directory if it doesn't exist.
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candidates = [
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policy_file,
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os.path.join(app.srcdir, policy_file,),
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]
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for c in candidates:
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if os.path.isfile(c):
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info('reading config generator instructions from %s' % c)
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config_path = c
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break
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else:
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raise ValueError(
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"Could not find policy_generator_config_file %r" %
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app.config.policy_generator_config_file)
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if base_name:
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out_file = os.path.join(app.srcdir, base_name) + '.policy.yaml.sample'
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if not os.path.isdir(os.path.dirname(os.path.abspath(out_file))):
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os.mkdir(os.path.dirname(os.path.abspath(out_file)))
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else:
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file_name = 'sample.policy.yaml'
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out_file = os.path.join(app.srcdir, file_name)
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info('writing sample policy to %s' % out_file)
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# NOTE(bnemec): We don't want to do cli parsing on the global object here
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# because that can break consumers who do cli arg registration on import
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# in their documented modules. It's not allowed to register a cli arg after
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# the args have been parsed once.
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conf = cfg.ConfigOpts()
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generator.generate_sample(args=['--config-file', config_path,
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'--output-file', out_file],
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conf=conf)
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def setup(app):
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app.add_config_value('policy_generator_config_file', None, 'env')
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app.add_config_value('sample_policy_basename', None, 'env')
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app.connect('builder-inited', generate_sample)
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