gistfile1.rb

  def self.cached_deliveries
    if File.exists?(DELIVERIES_CACHE_PATH) == false || File.zero?(DELIVERIES_CACHE_PATH) == true
      return []
    else
      File.open(DELIVERIES_CACHE_PATH,'r') do |f|
        Marshal.load(f)
      end
    end
  end

  def self.cached_deliveries
    begin
      File.open(DELIVERIES_CACHE_PATH,'r') do |f|
        Marshal.load(f)
      end
    rescue
     []
    end
  end