98 lines
3.0 KiB
Python
98 lines
3.0 KiB
Python
# Copyright 2019 Red Hat
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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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from __future__ import absolute_import
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import collections
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import os
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import sys
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from heatclient.common import template_utils
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import yaml
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import tobiko
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TEMPLATE_SUFFIX = '.yaml'
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TEMPLATE_DIRS = list(sys.path)
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class HeatTemplate(collections.namedtuple('HeatTemplate',
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['template', 'file', 'files'])):
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_yaml = None
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@classmethod
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def from_dict(cls, template):
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return cls(template=template, file=None, files=None)
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@classmethod
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def from_file(cls, template_file, template_dirs=None):
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if template_dirs or not os.path.isfile(template_file):
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template_dirs = template_dirs or TEMPLATE_DIRS
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template_file = find_heat_template_file(
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template_file=template_file, template_dirs=template_dirs)
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files, template = template_utils.get_template_contents(
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template_file=template_file)
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return cls(file=template_file, files=files, template=template)
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@property
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def yaml(self):
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if not self._yaml:
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self._yaml = yaml.safe_dump(self.template)
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return self._yaml
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class HeatTemplateFileFixture(tobiko.SharedFixture):
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template_file = None
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template_dirs = None
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template = None
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def __init__(self, template_file=None, template_dirs=None):
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super(HeatTemplateFileFixture, self).__init__()
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if template_file:
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self.template_file = template_file
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if template_dirs:
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self.template_dirs = template_dirs
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def setup_fixture(self):
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self.setup_template()
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def setup_template(self):
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self.template = HeatTemplate.from_file(
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template_file=self.template_file,
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template_dirs=self.template_dirs)
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def heat_template_file(template_file, template_dirs=None):
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return HeatTemplateFileFixture(template_file=template_file,
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template_dirs=template_dirs)
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def get_heat_template(template_file, template_dirs=None):
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return HeatTemplate.from_file(template_file=template_file,
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template_dirs=template_dirs)
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def find_heat_template_file(template_file, template_dirs):
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for template_dir in template_dirs:
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template_path = os.path.join(template_dir, template_file)
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if os.path.exists(template_path):
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return template_path
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msg = "Template file {!r} not found in directories {!r}".format(
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template_file, template_dirs)
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raise FileNotFoundError(msg)
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