Rack 1.3.0 & Serving Static Files

config.ru

# Set Our Root Path
::ROOT = File.dirname( File.expand_path( __FILE__ ) )

# Boot The App
require "#{ROOT}/config/boot.rb"

# Serve our index file by default
use Rack::Static , :urls => { "/" => "index.html" } , :root => "public"

# Setup Rack
run Rack::URLMap.new( {
  "/"    => Rack::Directory.new( "public" ), # Serve our static content
  "/app" => App.new                          # Sinatra app
} )