f4d3638d38
The repo is Python 3 now, so update hacking to version 2.0 which supports Python 3. Fix problems found. Change-Id: Id80f3fed3c693cefedca2d6468ab48577ccd9999
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
# Copyright 2017 Arm Limited.
|
|
#
|
|
# 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.
|
|
|
|
import yaml
|
|
|
|
from oslo_serialization import jsonutils
|
|
|
|
|
|
if hasattr(yaml, 'CSafeDumper'):
|
|
yaml_dumper_base = yaml.CSafeDumper
|
|
else:
|
|
yaml_dumper_base = yaml.SafeDumper
|
|
|
|
|
|
# We create custom class to not overriden the default yaml behavior
|
|
class yaml_loader(yaml.SafeLoader):
|
|
pass
|
|
|
|
|
|
class yaml_dumper(yaml_dumper_base):
|
|
pass
|
|
|
|
|
|
def _construct_yaml_str(self, node):
|
|
# Override the default string handling function
|
|
# to always return unicode objects
|
|
return self.construct_scalar(node)
|
|
|
|
|
|
yaml_loader.add_constructor(u'tag:yaml.org,2002:str', _construct_yaml_str)
|
|
# Unquoted dates like 2013-05-23 in yaml files get loaded as objects of type
|
|
# datetime.data which causes problems in API layer when being processed by
|
|
# openstack.common.jsonutils. Therefore, make unicode string out of timestamps
|
|
# until jsonutils can handle dates.
|
|
yaml_loader.add_constructor(u'tag:yaml.org,2002:timestamp',
|
|
_construct_yaml_str)
|
|
|
|
|
|
def parse(tmpl_str):
|
|
"""Takes a string and returns a dict containing the parsed structure.
|
|
|
|
This includes determination of whether the string is using the
|
|
JSON or YAML format.
|
|
"""
|
|
# strip any whitespace before the check
|
|
tmpl_str = tmpl_str.strip()
|
|
if tmpl_str.startswith('{'):
|
|
tpl = jsonutils.loads(tmpl_str)
|
|
else:
|
|
try:
|
|
tpl = yaml.safe_load(tmpl_str)
|
|
except yaml.YAMLError as yea:
|
|
raise ValueError(yea)
|
|
else:
|
|
if tpl is None:
|
|
tpl = {}
|
|
|
|
return tpl
|