parse colors from http://www.google.com/design/spec/style/color.html and write scss file

gistfile1.rb

require 'nokogiri'
require 'open-uri'

### Quick little script to parse all the colors form
### http://www.google.com/design/spec/style/color.html
### and write scss file

class GoogleColorParser
  def initialize
    sorted_colors
  end

  def color_groups
    @color_groups ||= document.css("#ui-color-palette-extended-color-palette .color-group")
  end

  def colors
    @colors ||= color_groups.map do |color_group|
      main_color = color_group.css(".main-color .name")[0].text.parameterize

      color_group.css(".color").inject({}) do |color_hash, color_node|
        color_hash["#{main_color}-#{color_node.css(".shade")[0].text.strip}"] = color_node.css(".hex")[0].text.strip

        color_hash
      end
    end.reduce({}, :update)
  end

  def document
    @document ||= Nokogiri::HTML(open("http://www.google.com/design/spec/style/color.html"))
  end

  def sorted_colors
    @sorted_colors ||= Hash[colors.sort_by(&:first)]
  end

  def to_scss
    File.open("colors.scss", "w") do |file|
      sorted_colors.each_pair do |name, hex|
        file << "$#{name}: #{hex};\n"
      end
    end
  end

  def self.parse
    new
  end
end