Renders a scss stylesheet with erb using Tilt templates.

dynamic_stylesheet.rb

class DynamicStylesheet
  # logical_path = 'app/assets/stylesheets/custom.css.scss.erb'
  def render(logical_path, data={})
    
    path = Rails.root.join(logical_path)
  
    context = env.context_class.new(env, logical_path, Pathname.new(path))
  
    # TODO Change to Tilt.templates_for(file) in Tilt 2.x
    templates = [Tilt::ERBTemplate, Sass::Rails::ScssTemplate]
  
    css = templates.inject(nil) do |data, template|
      blk = proc { data } if data
      template.new(path.to_s, &blk).render(context, data)
    end
  end

  def env
    ::YourApp::Application.assets
  end
end