* returns an empty {@link Optional} object.  Non-ASCII encodings (e.g. UTF-16) are treated as binary files.
 */
public class LineEndingNormalizingInputStreamHasher {
    private static final HashCode SIGNATURE = Hashing.signature(LineEndingNormalizingInputStreamHasher.class);
    private static final int BUFFER_SIZE = 8192;

    /**
     * Hash the contents of the provided input stream, normalizing line endings.
     *

 *
 * See {@link LineEndingNormalizingInputStreamHasher}.
 */
public class LineEndingNormalizingFileSystemLocationSnapshotHasher implements FileSystemLocationSnapshotHasher {
    private final FileSystemLocationSnapshotHasher delegate;
    private final LineEndingNormalizingInputStreamHasher hasher;

 *
 * See {@link LineEndingNormalizingInputStreamHasher}.
 */
public class LineEndingNormalizingResourceHasher extends FallbackHandlingResourceHasher {
    private final LineEndingNormalizingInputStreamHasher hasher;

    private LineEndingNormalizingResourceHasher(ResourceHasher delegate) {
        super(delegate);
        this.hasher = new LineEndingNormalizingInputStreamHasher();
    }

class LineEndingNormalizingInputStreamHasherTest extends Specification {
    @TempDir
    File tempDir

    def hasher = new LineEndingNormalizingInputStreamHasher()

    def "can normalize line endings in files (eol = '#description')"() {
        def unnormalized = file('unnormalized.txt') << content.textWithLineEndings(eol)