gistfile1.rb

class Merb::BootLoader::RackUpApplication < Merb::BootLoader
  # Setup the Merb Rack App or read a rackup file located at
  # Merb::Config[:rackup] with the same syntax as the
  # rackup tool that comes with rack. Automatically evals the file in
  # the context of a Rack::Builder.new { } block. Allows for mounting
  # additional apps or middleware.
  #
  # ==== Returns
  # nil
  #
  # :api: plugin
  def self.run
    require 'rack'
    if File.exists?(Merb.dir_for(:config) / "rack.rb")
      Merb::Config[:rackup] ||= Merb.dir_for(:config) / "rack.rb"
    end
 
    if Merb::Config[:rackup]
      rackup_code = File.read(Merb::Config[:rackup])
      Merb::Config[:app] = eval("::Rack::Builder.new {( #{rackup_code}\n )}.to_app", TOPLEVEL_BINDING, Merb::Config[:rackup])
    else
      Merb::Config[:app] = ::Rack::Builder.new {
         if prefix = ::Merb::Config[:path_prefix]
           use Merb::Rack::PathPrefix, prefix
         end
         use Merb::Rack::Static, Merb.dir_for(:public)
         run Merb::Rack::Application.new
       }.to_app
    end
 
    nil
  end
end