fish-completion.py 文件源码

def build_completion(opt_parser):
    commands = []

    for group in opt_parser.option_groups:
        for option in group.option_list:
            long_option = option.get_opt_string().strip('-')
            complete_cmd = ['complete', '--command', 'youtube-dl', '--long-option', long_option]
            if option._short_opts:
                complete_cmd += ['--short-option', option._short_opts[0].strip('-')]
            if option.help != optparse.SUPPRESS_HELP:
                complete_cmd += ['--description', option.help]
            complete_cmd.extend(EXTRA_ARGS.get(long_option, []))
            commands.append(shell_quote(complete_cmd))

    with open(FISH_COMPLETION_TEMPLATE) as f:
        template = f.read()
    filled_template = template.replace('{{commands}}', '\n'.join(commands))
    with open(FISH_COMPLETION_FILE, 'w') as f:
        f.write(filled_template)