80 lines
2.6 KiB
Python
Executable File
80 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2020 StackHPC Ltd.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Original license:
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@author Gerard van Helden <drm@melp.nl>
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@license DBAD, see <http://www.dbad-license.org/>
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@url https://github.com/drm/jinja2-lint
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Simple j2 linter, useful for checking jinja2 template syntax
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Adapted for OpenStack Kolla/Kolla-Ansible purposes
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"""
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from ansible.plugins.filter.core import to_json
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from functools import reduce
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from jinja2 import BaseLoader
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from jinja2 import Environment
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from jinja2 import exceptions
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from jinja2 import TemplateNotFound
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from kolla_ansible import kolla_address
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from kolla_ansible import put_address_in_context
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import os.path
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class AbsolutePathLoader(BaseLoader):
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def get_source(self, environment, template):
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if not os.path.exists(template):
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raise TemplateNotFound(template)
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mtime = os.path.getmtime(template)
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with open(template) as file:
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source = file.read()
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return source, template, lambda: mtime == os.path.getmtime(template)
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def check(template, out, err, env=Environment(loader=AbsolutePathLoader(),
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autoescape=True)):
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try:
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env.filters['basename'] = os.path.basename
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env.filters['bool'] = bool
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env.filters['hash'] = hash
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env.filters['to_json'] = to_json
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env.filters['kolla_address'] = kolla_address
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env.filters['put_address_in_context'] = put_address_in_context
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env.get_template(template)
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out.write("%s: Syntax OK\n" % template)
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return 0
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except TemplateNotFound:
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err.write("%s: File not found\n" % template)
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return 2
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except exceptions.TemplateSyntaxError as ex:
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err.write("%s: Syntax check failed: %s in %s at %d\n"
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% (template, ex.message, ex.filename, ex.lineno))
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return 1
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def main(**kwargs):
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import sys
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try:
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sys.exit(reduce(lambda r, fn: r +
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check(fn, sys.stdout, sys.stderr, **kwargs),
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sys.argv[1:], 0))
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except IndexError:
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sys.stdout.write("Usage: j2lint.py filename [filename ...]\n")
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if __name__ == "__main__":
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main()
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