true | Object | Function | undefinedfalseConfigure the Pug template engine.
Pug template engine is not enabled by default, you can enable it by setting tools.pug to true.
When enabled, you can use index.pug as the template file in html.template config.
When tools.terser is Object type, you can passing the Pug options:
For detailed options, please refer to Pug API Reference.
When tools.pug is Function type, the default configuration is passed in as the first parameter, the configuration object can be modified directly, or a value can be returned as the final result.