sass_get_asset_url.rb

require 'json'


module Sass::Script::Functions

  def get_md5s
    md5sfile = File.join Dir.pwd, 'tmp/browser/cache/md5.json'
    return JSON.parse(File.read(md5sfile))
  end

  def get_asset_url(string)
    assert_type string, :String
    value = string.value

    md5s = get_md5s

    if md5s[value].nil?
      puts "Couldn't find asset path '#{value}'."
      return Sass::Script::Value::String.new(value)
    end

    Sass::Script::Value::String.new(md5s[value][0]["fullUrl"])
  end

  declare :get_asset_url, [:string]
end