rails--rails/railties/lib/rails/console/app.rb

require 'active_support/all'
require 'action_controller'

module Rails
  module ConsoleMethods
    # reference the global "app" instance, created on demand. To recreate the
    # instance, pass a non-false value as the parameter.
    def app(create=false)
      @app_integration_instance = nil if create
      @app_integration_instance ||= new_session do |sess|
        sess.host! "www.example.com"
      end
    end

    # create a new session. If a block is given, the new session will be yielded
    # to the block before being returned.
    def new_session
      app = Rails.application
      session = ActionDispatch::Integration::Session.new(app)
      yield session if block_given?
      session
    end

    # reloads the environment
    def reload!(print=true)
      puts "Reloading..." if print
      ActionDispatch::Reloader.cleanup!
      ActionDispatch::Reloader.prepare!
      true
    end
  end
end