Reading the header info from a whisper (.wsp) file with ruby.

gistfile1.txt

irb(main):003:0> pp Wisp.info(File.expand_path('~/Dropbox/Projects/created_or_updated.wsp'));nil
{:aggregation_method=>"average",
 :max_retention=>94608000,
 :x_files_factor=>0.5,
 :archives=>
  [{:offset=>64,
    :seconds_per_point=>10,
    :point_count=>241920,
    :retention=>2419200,
    :size=>2903040},
   {:offset=>2903104,
    :seconds_per_point=>60,
    :point_count=>120960,
    :retention=>7257600,
    :size=>1451520},
   {:offset=>4354624,
    :seconds_per_point=>600,
    :point_count=>52560,
    :retention=>31536000,
    :size=>630720},
   {:offset=>4985344,
    :seconds_per_point=>3600,
    :point_count=>26280,
    :retention=>94608000,
    :size=>315360}]}
=> nil