compass_config.rb

if environment == :production
  on_stylesheet_saved do |file|
    # pretty logging output when making a gzipp'ed file
    gz_file = Pathname.new("#{file}.gz").relative_path_from(Pathname.new(project_path))
    Compass::Logger.new.record(:create, gz_file)
    # This generates a file of the same name but ending in .gz
    `gzip -f #{file}`
  end
end