Gollum HTTP Basic Auth

config.ru

require 'gollum/app'

class GollumAuth
  User = Struct.new(:name, :email, :password_hash)

  def users
    if @_users
      return @_users
    end
    all_users = YAML.load_file(File.expand_path('users.yml', File.dirname(__FILE__)))
    @_users = all_users.map {|u| User.new(*u) }
  end

  def detected_user(credentials)
    users.detect do |u|
      [u.email, u.password_hash] == [credentials[0], Digest::SHA1.hexdigest(credentials[1])]
    end
  end

  def initialize(app)
    @app = app
  end

  def call(env)
    request = Rack::Request.new(env)
    session = env['rack.session'] = {}

    auth = Rack::Auth::Basic::Request.new(env)
    if auth.provided? && auth.basic? && auth.credentials && user = detected_user(auth.credentials)
      session['gollum.author'] = {
        :name => user.name,
        :email => user.email
      }
    end

    # Require login to modify anything.
    if request.path =~ /^\/(edit|uploadFile|rename|edit|delete|create|revert|preview)\// and not session['gollum.author']
      return [401, {'WWW-Authenticate' => %(Basic realm="Gollum Wiki")}, []]
    end

    @app.call(env)
  end
end

use GollumAuth

gollum_path = File.expand_path(File.dirname(__FILE__)) + "/wikidata"
Precious::App.set(:gollum_path, gollum_path)
Precious::App.set(:default_markup, :markdown)
Precious::App.set(:wiki_options, {})
run Precious::App

Based on https://gist.github.com/dstrelau/710627 and https://github.com/riskanalytics/gollum-rack/blob/master/config.ru

im having this issue
undefined method `run' for main:Object (NoMethodError)

Can you give the command to start Gollum which this middleware? How can i put options fror gollum?