import org.gradle.internal.hash.Hasher;

import javax.annotation.Nullable;
import java.io.IOException;

public class IgnoringResourceHasher implements ResourceHasher {
    private final ResourceHasher delegate;
    private final ResourceFilter resourceFilter;

    public IgnoringResourceHasher(ResourceHasher delegate, ResourceFilter resourceFilter) {
        this.delegate = delegate;
        this.resourceFilter = resourceFilter;

        return ignoringResourceHasher(resourceHasher, classpathResourceFilter);
    }

    private static ResourceHasher ignoringResourceHasher(ResourceHasher delegate, ResourceFilter resourceFilter) {
        return new IgnoringResourceHasher(delegate, resourceFilter);
    }

import spock.lang.Specification

class IgnoringResourceHasherTest extends Specification {
    def delegate = Mock(ResourceHasher)
    def resourceFilter = Mock(ResourceFilter)
    def hasher = new IgnoringResourceHasher(delegate, resourceFilter)
    def snapshot = new RegularFileSnapshot("path", "path", TestHashCodes.hashCodeFrom(456), DefaultFileMetadata.file(3456, 456, FileMetadata.AccessType.DIRECT))