render webpack application.erb

gistfile1.txt

class LayoutRenderer
  include ActionView::Helpers
  include Webpacker::Helper

  def csp_meta_tag;
  end
end

namespace :webpacker do
  desc "render the webpack filled application.erb"
  task :render => 'webpacker:compile' do

    # APP_PATH = File.expand_path('../config/application', __dir__)
    # require_relative './config/boot'
    # require 'rails/commands'

    template = File.read('./app/views/layouts/application.html.erb')

    erb = ERB.new(template)
    erb.def_method(LayoutRenderer, 'render')

    result = LayoutRenderer.new.render do
      "I'm somewhere in the middle"
    end
    File.write("public/index.html", result)
  end
end