svoid dm_syncDirectoryToOtherMachine(File dir, S computerID, S remotePath) {
  print("Syncing dir " + dir + " to " + computerID + ":" + remotePath);
  new L<File> dirs;
  for ping (File f : listFiles_noSymLinks(dir)) {
    S remote = addSlash(remotePath) + f.getName();
    if (isDirectory(f)) dirs.add(f);
    else
      dm_sendFileToOtherMachineIfDifferent(f, computerID, remote);
  }
  
  for ping(File f : dirs) {
    S remote = addSlash(remotePath) + f.getName();
    dm_syncDirectoryToOtherMachine(f, computerID, remote);
  }
  print("Synced dir " + dir + " to " + computerID + ":" + remotePath);
}