private void AddDirectoryFilesToTar(TarArchive tarArchive, string sourceDirectory, bool recurse)
        {
            TarEntry tarEntry = TarEntry.CreateEntryFromFile(sourceDirectory);
            tarArchive.WriteEntry(tarEntry, false);


            string[] filenames = Directory.GetFiles(sourceDirectory);
            foreach (string filename in filenames)
            {
                tarEntry = TarEntry.CreateEntryFromFile(filename);
                tarArchive.WriteEntry(tarEntry, true);
            }

            if (recurse)
            {
                string[] directories = Directory.GetDirectories(sourceDirectory);
                foreach (string directory in directories)
                    AddDirectoryFilesToTar(tarArchive, directory, recurse);
            }
        }

        private void CreateTar(string tgzFilename, string sourceDirectory)
        {
            Stream outStream = File.Create(tgzFilename);
            TarArchive tarArchive = TarArchive.CreateOutputTarArchive(outStream);
            tarArchive.RootPath = sourceDirectory.Replace('\', '/');
            if (tarArchive.RootPath.EndsWith("/"))
                tarArchive.RootPath = tarArchive.RootPath.Remove(tarArchive.RootPath.Length - 1);
            AddDirectoryFilesToTar(tarArchive, sourceDirectory, true);
            tarArchive.Close();
        }