# File lib/chef_zero/cookbook_data.rb, line 6
    def self.to_hash(cookbook, name, version=nil)
      frozen = false
      if cookbook.has_key?(:frozen)
        frozen = cookbook[:frozen]
        cookbook = cookbook.dup
        cookbook.delete(:frozen)
      end

      result = files_from(cookbook)
      recipe_names = result[:recipes].map do |recipe|
        recipe_name = recipe[:name][0..-2]
        recipe_name == 'default' ? name : "#{name}::#{recipe_name}"
      end
      result[:metadata] = metadata_from(cookbook, name, version, recipe_names)
      result[:name] = "#{name}-#{result[:metadata][:version]}"
      result[:json_class] = 'Chef::CookbookVersion'
      result[:cookbook_name] = name
      result[:version] = result[:metadata][:version]
      result[:chef_type] = 'cookbook_version'
      result[:frozen?] = true if frozen
      result
    end