list_languages

#!/usr/bin/env python3

import argparse
import json
import os
from pathlib import Path


def parse_langs(langs, include_beta):
    for line in langs.readlines():
        description = line[3:-7]
        code = line[-5:-3]

        if include_beta or 'beta' not in description:
            yield code, description

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--include-beta', help='Include beta languages', default='false',
                        choices=('true', 'false'))
    parser.add_argument('--langs-file', help='LANGS.md to use',
                        type=argparse.FileType('r', encoding='UTF-8'),
                        default=(Path(__file__).absolute().parent.parent / 'LANGS.md').as_posix())
    args = parser.parse_args()

    languages = dict(parse_langs(args.langs_file, args.include_beta == 'true'))

    if 'GITHUB_ACTION' in os.environ:
        print(f'::set-output name=languages::{json.dumps(list(languages.keys()))}')
    for code, language in languages.items():
        print(f'{language} ({code})')


if __name__ == '__main__':
    main()