private static boolean canShowContent(@NotNull DiffContent content) {
    if (content instanceof EmptyContent) return true;
    if (content instanceof DirectoryContent) return true;
    if (content instanceof FileContent &&
        content.getContentType() instanceof ArchiveFileType &&
        ((FileContent)content).getFile().isValid() &&
        ((FileContent)content).getFile().isInLocalFileSystem()) {
      return true;
    }

    return false;
  }
private static boolean canShowContent(@NotNull DiffContent content)