def __call__()

in awscli/customizations/commands.py [0:0]

• 42 lines of code
• 11 McCabe index (conditional complexity)

    def __call__(self, args, parsed_globals):
        # args is the remaining unparsed args.
        # We might be able to parse these args so we need to create
        # an arg parser and parse them.
        self._subcommand_table = self._build_subcommand_table()
        self._arg_table = self._build_arg_table()
        event = 'before-building-argument-table-parser.%s' % \
            ".".join(self.lineage_names)
        self._session.emit(event, argument_table=self._arg_table, args=args,
                           session=self._session, parsed_globals=parsed_globals)
        parser = ArgTableArgParser(self.arg_table, self.subcommand_table)
        parsed_args, remaining = parser.parse_known_args(args)

        # Unpack arguments
        for key, value in vars(parsed_args).items():
            cli_argument = None

            # Convert the name to use dashes instead of underscore
            # as these are how the parameters are stored in the
            # `arg_table`.
            xformed = key.replace('_', '-')
            if xformed in self.arg_table:
                cli_argument = self.arg_table[xformed]

            value = unpack_argument(
                self._session,
                'custom',
                self.name,
                cli_argument,
                value
            )

            # If this parameter has a schema defined, then allow plugins
            # a chance to process and override its value.
            if self._should_allow_plugins_override(cli_argument, value):
                override = self._session\
                    .emit_first_non_none_response(
                        'process-cli-arg.%s.%s' % ('custom', self.name),
                        cli_argument=cli_argument, value=value, operation=None)

                if override is not None:
                    # A plugin supplied a conversion
                    value = override
                else:
                    # Unpack the argument, which is a string, into the
                    # correct Python type (dict, list, etc)
                    value = unpack_cli_arg(cli_argument, value)
                self._validate_value_against_schema(
                    cli_argument.argument_model, value)

            setattr(parsed_args, key, value)

        if hasattr(parsed_args, 'help'):
            self._display_help(parsed_args, parsed_globals)
        elif getattr(parsed_args, 'subcommand', None) is None:
            # No subcommand was specified so call the main
            # function for this top level command.
            if remaining:
                raise ValueError("Unknown options: %s" % ','.join(remaining))
            return self._run_main(parsed_args, parsed_globals)
        else:
            return self.subcommand_table[parsed_args.subcommand](remaining,
                                                                 parsed_globals)