# File lib/buildr/ide/idea.rb, line 366
      def net_excluded_directories
        net = []
        all = self.excluded_directories.map { |dir| buildr_project._(dir.to_s) }.sort_by { |d| d.size }
        all.each_with_index do |dir, i|
          unless all[0 ... i].find { |other| dir =~ /^#{other}/ }
            net << dir
          end
        end
        net
      end