@Contract(pure = true)
  public static @NotNull String getSvnSshVariableName(@Nullable String tunnel) {
    return tunnel != null && tunnel.startsWith("$") ? notNull(substringBefore(tunnel, " "), tunnel).substring(1) : "";
  }
@Contract(pure = true)
  public static @NotNull String getSvnSshVariableName(@Nullable String tunnel)