universe_builder.py 文件源码

def _apply_templating_to_file(self, filename, orig_content):
        rabbitmq_mapping = self._get_rabbitmq_mapping_for_content(orig_content)
        new_content = orig_content
        for rabbitmq_key, rabbitmq_val in rabbitmq_mapping.items():
            new_content = new_content.replace('{{%s}}' % rabbitmq_key, rabbitmq_val)
        if orig_content == new_content:
            logger.info('')
            logger.info('No templating detected in {}, leaving file as-is'.format(filename))
            return orig_content
        logger.info('')
        logger.info('Applied templating changes to {}:'.format(filename))
        logger.info('Template params used:')
        rabbitmq_keys = list(rabbitmq_mapping.keys())
        rabbitmq_keys.sort()
        for key in rabbitmq_keys:
            logger.info('  {{%s}} => %s' % (key, rabbitmq_mapping[key]))
        logger.info('Resulting diff:')
        logger.info('\n'.join(difflib.ndiff(orig_content.split('\n'), new_content.split('\n'))))
        return new_content