rails vue templates preprocesor

vue_template.rb

# config/initializers/vue_template.rb

module Sprockets
  class Vue
    def self.instance
      @instance ||= new
    end

    def self.call(input)
      instance.call(input)
    end

    def initialize(options = {})
    end

    def call(input)
      code = input[:data]
      return "" unless code

      code.scan(/templatePath: (.*)\n/).each do |match|
        relative_path = match[0].gsub(' ', '').gsub('\'', '').gsub('"', '')
        absolute_path = Pathname.new(input[:load_path]).join(relative_path)
        template = File.read(absolute_path)
        template.gsub!("\n", '').gsub!('"', '\"')
        code.gsub!(match[0], "\"#{template}\"")
      end

      code.gsub('templatePath:', 'template:')
    end
  end

  #register_mime_type 'text/ecmascript-6', extensions: ['.vue'], charset: :unicode
  #register_transformer 'text/ecmascript-6', 'application/javascript', ES6
  #register_preprocessor 'text/ecmascript-6', DirectiveProcessor
  register_engine '.vue', Vue
end