JS coffee script size comparsion table

js_coffee_comp.rb

require "rubygems"
require "terminal-table/import"
def coffee_length file
  non_comment = open(file).read.split("\n").reject {|l| l =~ /^(?:\s+#.*|\s*)$/}
  [non_comment.length, character_length(non_comment)]
end
def js_length file
  non_comment = open(file).read.split("\n").reject {|l| l =~ /^(?:\s+\/\/.*|\s+\/\*[^\*]*\/\s*|\s*)$/}
  [non_comment.length, character_length(non_comment)]
end
def character_length lines
  lines.inject(0) {|sum,line| line.gsub(/\s+/,"").length + sum }
end
def to_js file
  dir = file.split("/")[3..-2]
  file = file.split("/").last.split(".").first
  "public/js/plv/#{dir.join("/")}/#{file}.js"
end

puts to_js "app/coffee/plv/models/thing.coffee"

comparison = table ["File","Coffee Lines","Coffee Characters","JS Lines","JS Characters"]

coffee = Dir.glob("app/coffee/plv/**/*.coffee").reject {|file| open(file).read.split("\n").length < 5}
totals = ["Total",0,0,0,0]
coffee.each do |file| 
  lines, chars = coffee_length file
  js_lines, js_chars = js_length to_js file
  [lines,chars,js_lines,js_chars].each_with_index do |val,index|
    totals[index + 1] += val
  end
  comparison << [file,lines,chars,"#{"x %.1f" % ((js_lines / lines.to_f))}", "#{"x %.1f" % ((js_chars / chars.to_f))}"]
end
comparison << :separator
comparison << totals
comparison << ["Diff","","","+ #{totals[3] - totals[1]}","+ #{totals[4] - totals[2]}"]
comparison << :separator
comparison << ["Ratios JS/Coffee","","","x %.3f" % (totals[3] / totals[1].to_f),"x %.3f" % (totals[4] / totals[2].to_f)]

puts comparison