Class MainArgParser

awscli/argparser.py:119–158

class MainArgParser(CLIArgParser):
    Formatter = argparse.RawTextHelpFormatter

    def __init__(
        self,
        command_table,
        version_string,
        description,
        argument_table,
        prog=None,
    ):
        super().__init__(
            formatter_class=self.Formatter,
            add_help=False,
            conflict_handler='resolve',
            description=description,
            usage=USAGE,
            prog=prog,
        )
        self._build(command_table, version_string, argument_table)

    def _create_choice_help(self, choices):
        help_str = ''
        for choice in sorted(choices):
            help_str += f'* {choice}\n'
        return help_str

    def _build(self, command_table, version_string, argument_table):
        for argument_name in argument_table:
            argument = argument_table[argument_name]
            argument.add_to_parser(self)
        self.add_argument(
            '--version',
            action="version",
            version=version_string,
            help='Display the version of this tool',
        )
        self.add_argument(
            'command', action=CommandAction, command_table=command_table
        )


class ServiceArgParser(CLIArgParser):