public static File revert(File current, File original) throws IOException {
		// do nothing if current and original path is exactly the same
		if (current.equals(original)) {
			return original;
		}

		// reverse move
		if (current.exists() && !original.exists()) {
			return moveRename(current, original);
		}

		BasicFileAttributes currentAttr = Files.readAttributes(current.toPath(), BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS);
		BasicFileAttributes originalAttr = Files.readAttributes(original.toPath(), BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS);

		// reverse symlink
		if (currentAttr.isSymbolicLink() && !originalAttr.isSymbolicLink()) {
			trash(current);
			return original;
		}

		// reverse keeplink
		if (!currentAttr.isSymbolicLink() && originalAttr.isSymbolicLink()) {
			trash(original);
			return moveRename(current, original);
		}

		// reverse copy / hardlink
		if (currentAttr.isRegularFile() && originalAttr.isRegularFile()) {
			trash(current);
			return original;
		}

		// reverse folder copy
		if (currentAttr.isDirectory() && originalAttr.isDirectory()) {
			trash(original);
			return moveRename(current, original);
		}

		throw new IllegalStateException(String.format("Cannot revert file: %s => %s", current, original));
	}