// TODO: subdirectories

// Now sorts file list first (to ensure reproducable MD5 of zip)

static int dir2zip(File inDir, ZipOutputStream outZip, String outPrefix) ctex {

  new L<File> files;

  for (File f : inDir.listFiles())

    if (f.isFile())

      files.add(f);

  sortFilesByName(files);

  for (File f : files) {

    System.out.println("Copying " + f.getName());

    outZip.putNextEntry(new ZipEntry(outPrefix + f.getName()));

    InputStream fin = new FileInputStream(f);

    copyStream(fin, outZip);

    fin.close();

  }

  return files.size();

}

static int dir2zip(File inDir, ZipOutputStream outZip) {

  return dir2zip(inDir, outZip, "");

}

static int dir2zip(String inDir, ZipOutputStream outZip) {

  return dir2zip(new File(inDir), outZip, "");

}

static int dir2zip(File inDir, File zip, S outPrefix default "") ctex {

  mkdirsForFile(zip);

  FileOutputStream fout = new FileOutputStream(zip);

  ZipOutputStream outZip = new ZipOutputStream(fout);

  try {

    ret dir2zip(inDir, outZip, outPrefix);

  } finally {

    outZip.close();

  }

}