compile_css.rb

def cdn_url(count, path)
  max = 98
  range = 8
  
  number = count / 8
  number = (number > max ? max : number).to_s
  number = number.length == 1 ? '0' + number : number
  
  return "http://cdn-static-#{number}.viddler.com/css/#{path}"
end

def prepare_for_cdn(css)
  count = 1
  css.scan(/\(["']([^"']+){1}["']\)/).uniq.each do |match|
    url = match.first
    new_url = cdn_url(count, url)
    css.gsub!(url, new_url)
    count += 1
  end
  return css
end

def compress_css(css)
  # Remove whitespace
  css.gsub!(/[\r\t\n]| (\{)|(:) |(,) /) { $1 or $2 or $3 }
  
  # Remove comments
  css.gsub!(Regexp.new('/\*[^*]*\*+([^/][^*]*\*+)*/'), '')
  
  # Remove semicolons next to end brackets
  css.gsub!(/;\}/, '}')
  
  return css
end

def read_files
  css = '';
  # Loop through directory, reading files    
  Dir.foreach(Dir.pwd).each do |file|
    if file.match(/\.css$/) and file != 'style.css'
      css += File.read(file)
    end
  end
  return css
end

def save(css, name)
  File.open(name, 'w') do |file|
    file.puts(css)
  end
end

compiled = compress_css(read_files())
save(compiled, 'style.css')
save(prepare_for_cdn(compiled), 'style.cdn.css')