# Require lib require 'rack/showexceptions' # Support rack/showexceptions during development module Middleman module CoreExtensions module ShowExceptions # Setup extension class << self # Once registered def registered(app) # Whether to catch and display exceptions # @return [Boolean] app.config.define_setting :show_exceptions, true, 'Whether to catch and display exceptions' # When in dev app.configure :development do # Include middlemare use ::Rack::ShowExceptions if config[:show_exceptions] end end end end end end