# File lib/bundler/source.rb, line 372
      def cache(spec)
        return unless Bundler.settings[:cache_all]
        return if @original_path.expand_path(Bundler.root).to_s.index(Bundler.root.to_s) == 0
        FileUtils.rm_rf(app_cache_path)
        FileUtils.cp_r("#{@original_path}/.", app_cache_path)
        FileUtils.touch(app_cache_path.join(".bundlecache"))
      end