class Middleman::PreviewServer

def reload
  app.logger.info '== The Middleman is reloading'
  app.execute_callbacks(:reload)
  begin
    app = initialize_new_app
  rescue => e
    $stderr.puts "Error reloading Middleman: #{e}\n#{e.backtrace.join("\n")}"
    app.logger.info '== The Middleman is still running the application from before the error'
    return
  end
  unmount_instance
  @webrick.shutdown
  @webrick = nil
  mount_instance(app)
  app.logger.info '== The Middleman has reloaded'
end