Parse S3 URL for credentials

gistfile1.rb

require 'uri'                                                                         

if ENV.has_key? "BUCKET_URL"                                                          
  uri = URI.parse(ENV["BUCKET_URL"])                                                  
  ENV["S3_ACCESS_KEY"] = uri.user                                                     
  ENV["S3_ACCESS_SECRET"] = uri.password                                              
end