__main__.py 文件源码

def create_command(self, provider_name):
        config = node_manager.valid_node_types['providers'].get(provider_name)

        if not config:
            return

        provider_options = [
            click.Option(param_decls=['--name'], help='Compute node name', required=True)
        ]

        for param, param_data in node_manager.get_node_params(provider_name).items():
            argument_params = dict()
            argument_params['help'] = ''

            description = param_data.get('description', {}).get(DEFAULT_LANG)
            default = param_data.get('default')
            arg_type = param_data.get('type')

            if description:
                argument_params['help'] += '{} '.format(description)
            if arg_type:
                argument_params['help'] += '(type: {}) '.format(arg_type)
            if default:
                argument_params.update({
                    'default': default,
                    'required': False
                })
                argument_params['help'] += '(default: {}) '.format(default)
            else:
                argument_params['required'] = True

            provider_options.append(click.Option(
                param_decls=['--{}'.format(param)],
                help=argument_params['help'],
                default=default,
                required=False if default else True
            ))

        cmd = click.Command(
            name=provider_name,
            params=provider_options,
            help=click.style(config['description'], fg='cyan'),
            short_help=click.style(config['description'], fg='cyan'),
            callback=self.create_node_callback
        )

        return cmd