# File lib/chef/cookbook_version.rb, line 501
    def manifest=(new_manifest)
      @manifest = Mash.new new_manifest
      @checksums = extract_checksums_from_manifest(@manifest)
      @manifest_records_by_path = extract_manifest_records_by_path(@manifest)

      COOKBOOK_SEGMENTS.each do |segment|
        next unless @manifest.has_key?(segment)
        filenames = @manifest[segment].map{|manifest_record| manifest_record['name']}

        if segment == :recipes
          self.recipe_filenames = filenames
        elsif segment == :attributes
          self.attribute_filenames = filenames
        else
          segment_filenames(segment).clear
          filenames.each { |filename| segment_filenames(segment) << filename }
        end
      end
    end