public function FileTransferSSH::isDirectory in Drupal 7
WARNING: This is untested. It is not currently used, but should do the trick.
Overrides FileTransfer::isDirectory
File
- includes/filetransfer/ ssh.inc, line 67 
Class
- FileTransferSSH
- The SSH connection class for the update module.
Code
public function isDirectory($path) {
  $directory = escapeshellarg($path);
  $cmd = "[ -d {$directory} ] && echo 'yes'";
  if ($output = @ssh2_exec($this->connection, $cmd)) {
    if ($output == 'yes') {
      return TRUE;
    }
    return FALSE;
  }
  else {
    throw new FileTransferException('Cannot check @path.', NULL, array(
      '@path' => $path,
    ));
  }
}