def _build_parser()

in taskcat/_cli_core.py [0:0]

• 55 lines of code
• 7 McCabe index (conditional complexity)

    def _build_parser(self, description, version):
        parser = CustomParser(
            description=description,
            usage=self._build_usage(),
            formatter_class=argparse.RawDescriptionHelpFormatter,
        )
        if version:
            parser.add_argument("-v", "--version", action="version", version=version)
        # Add global arguments
        self._add_arguments(self.args["global"], parser)

        description = self._get_command_help(self._modules)
        command_parser = self._add_sub(
            parser=parser,
            title="commands",
            description=description,
            required=True,
            metavar="",
            dest="_command",
        )
        self.command_parser = command_parser
        for mod in self._modules:
            usage = self._build_usage({"command": mod})
            description = self._get_help(self._modules[mod])
            mod_parser = self._add_subparser(
                usage,
                description,
                mod,
                command_parser,
                self.args["commands"][mod]["args"],
            )
            self.subcommand_parsers[mod] = mod_parser
            # add subcommand parser if subcommands exist
            subcommands = self.args["commands"][mod]["subcommands"]
            if subcommands:
                class_methods = {
                    m[0]: m[1] for m in self._get_class_methods(self._modules[mod])
                }
                description = self._get_command_help(class_methods)
                subcommand_parser = self._add_sub(
                    parser=mod_parser,
                    title="subcommands",
                    description=description,
                    required=True,
                    metavar="",
                    dest="_subcommand",
                )
                for subcommand_name, subcommand_args in subcommands.items():
                    usage = self._build_usage({"subcommand": subcommand_name})
                    description = self._get_help(class_methods[subcommand_name])
                    self._add_subparser(
                        usage,
                        description,
                        subcommand_name,
                        subcommand_parser,
                        subcommand_args,
                    )
        return parser