Golang Template Abstraction for Debugging

template.go

type TplRunner interface {
	Execute(w io.Writer, data any) error
}

type DebugTplRunner string

func (r DebugTplRunner) Execute(w io.Writer, data any) error {
	t, err := template.ParseFiles(string(r))
	if err != nil {
		return err
	}
	return t.Execute(w, data)
}

// Now, both template.Template and DebugTplRunner can be used as type TplRunner.
// This allows for switching on/off automatic template reloading, e.g.:
//
//  var tpl TplRunner
//	if debug {
//		tpl = DebugTplRunner("index.html")
//	} else {
//		tpl = template.Must(template.ParseFiles("index.html"))
//	}