#!/usr/bin/env python
# Copyright 2019 Nokia
#
# 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 re
import sys
import argparse


def parse(args):
    p = argparse.ArgumentParser(
        description='Parse RPM macro definitions from mock '
                    'config and write a file for "rpmbuild" to process')
    p.add_argument('--mock-config', required=True)
    p.add_argument('--output-file-path', required=True)
    args = p.parse_args(args)
    return args


def main(input_args):
    args = parse(input_args)
    with open(args.mock_config, 'r') as f:
        data = f.read()
    with open(args.output_file_path, 'w') as f:
        for macro, expr in re.findall(
                r'^\s*config_opts\[[\'"]macros[\'"]\]\[[\'"](.*)[\'"]\]\s*=\s*[\'"](.*)[\'"]\s*$',
                data, re.MULTILINE):
            f.write('{} {}\n'.format(macro, expr))
    print('Wrote ' + args.output_file_path)


if __name__ == "__main__":
    main(sys.argv[1:])