#---
# Excerpted from "Everyday Scripting in Ruby"
# We make no guarantees that this code is fit for any purpose. 
# Visit http://www.pragmaticprogrammer.com/titles/bmsft for more book information.
#---

def month_before(a_time)
end


if $0 == __FILE__
  subsystem_names = ['audit', 'fulfillment', 'persistence',
                     'ui', 'util', 'inventory']
  start_date = month_before(Time.now)

  puts header(start_date)
  subsystem_names.each do | name |        
    puts subsystem_line(name, change_count_for(name))
  end   
end