c1273677f9
Per http://docs.openstack.org/developer/hacking/ and http://www.python.org/dev/peps/pep-0257/ Without extra blank line in multi-line docstrings based on http://lists.openstack.org/pipermail/openstack-dev/2014-February/028156.html Blueprint: reduce-flake8-ignored-rules Change-Id: Ic970fff3b66c357170f45e817d080fdb37c63d6e
50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
#
|
|
# 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.
|
|
|
|
from heat.common.template_format import yaml
|
|
from heat.common.template_format import yaml_loader
|
|
|
|
|
|
SECTIONS = (PARAMETERS, RESOURCE_REGISTRY) = \
|
|
('parameters', 'resource_registry')
|
|
|
|
|
|
def parse(env_str):
|
|
"""Takes a string and returns a dict containing the parsed structure."""
|
|
if env_str is None:
|
|
return {}
|
|
|
|
try:
|
|
env = yaml.load(env_str, Loader=yaml_loader)
|
|
except yaml.YAMLError as yea:
|
|
raise ValueError(yea)
|
|
else:
|
|
if env is None:
|
|
env = {}
|
|
|
|
if not isinstance(env, dict):
|
|
raise ValueError(_('The environment is not a valid '
|
|
'YAML mapping data type.'))
|
|
for param in env:
|
|
if param not in SECTIONS:
|
|
raise ValueError(_('environment has wrong section "%s"') % param)
|
|
|
|
return env
|
|
|
|
|
|
def default_for_missing(env):
|
|
"""Checks a parsed environment for missing sections."""
|
|
for param in SECTIONS:
|
|
if param not in env:
|
|
env[param] = {}
|