check_for_memcached.rb

begin
  # check if memcached is running; if it is, use that instead of the default memory cache
  Timeout.timeout(0.5) { TCPSocket.open("localhost", 11211) { } }
  config.cache_store = :mem_cache_store, %w(localhost:11211), { :namespace => 'OI', :timeout => 60 }
  $stderr.puts "Using memcached on localhost:11211"
rescue StandardError
  config.cache_store = nil
  $stderr.puts "memcached not running, caching to memory"
end