#!/usr/bin/env python
"""Standalone script to check FAUCET configuration, return 0 if provided config OK."""
# Copyright (C) 2015 Brad Cowie, Christopher Lorier and Joe Stringer.
# Copyright (C) 2015 Research and Education Advanced Network New Zealand Ltd.
# Copyright (C) 2015--2017 The Contributors
#
# 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 logging
import sys
from faucet import valve
from faucet.config_parser import dp_parser
from faucet.conf import InvalidConfigError
[docs]def check_config(conf_files, debug_level=logging.DEBUG):
"""Return True and successful config dict, if all config can be parsed."""
logname = '/dev/null'
logger = logging.getLogger('%s.config' % logname)
logger_handler = logging.StreamHandler(stream=sys.stderr)
logger.addHandler(logger_handler)
logger.propagate = 0
logger.setLevel(debug_level)
check_output = ''
check_result = False
for conf_file in conf_files:
try:
parse_result = dp_parser(conf_file, logname)
if parse_result is None:
break
_, dps = parse_result
if dps is None:
break
for dp in dps:
valve_dp = valve.valve_factory(dp)
if valve_dp is None:
check_result = False
break
check_output = dp.to_conf()
check_result = True
except InvalidConfigError as config_err:
check_output = config_err
return (check_result, check_output)
[docs]def main():
check_result, check_output = check_config(sys.argv[1:])
print(check_output)
if check_result:
sys.exit(0)
else:
sys.exit(-1)
if __name__ == '__main__':
main()