# File lib/chef/file_cache.rb, line 156
      def find(glob_pattern)
        keys = Array.new
        Dir[File.join(file_cache_path, glob_pattern)].each do |f|
          if File.file?(f)
            keys << f[/^#{Regexp.escape(Dir[file_cache_path].first) + File::Separator}(.+)/, 1]
          end
        end
        keys
      end