String ROLE = ArtifactTransformationManager.class.getName();

    /**
     * Take in an artifact and return the transformed artifact for locating in the remote repository. If no
     * transformation has occurred the original artifact is returned.
     *
     * @param artifact           Artifact to be transformed.
     * @param request the repositories to check
     */

                        return project.getConfigurations().create("transformed", transformed -> {
                            transformed.setCanBeConsumed(false);
                            transformed.setCanBeResolved(true);
                            transformed.extendsFrom(base);

                            transformed.getAttributes().attribute(ARTIFACT_TYPE_ATTRIBUTE, TXT_TYPE);
                        });

        then:
        result == transformed

        1 * attributeMatcher.matches(_, _, _) >> Collections.emptyList()
        1 * consumerProvidedVariantFinder.findTransformedVariants(variants, requestedAttributes) >> transformedVariants
        1 * factory.asTransformed(variant, transformedVariants[0].getTransformedVariantDefinition(), dependenciesResolverFactory, transformedVariantFactory) >> transformed
        0 * attributeMatcher._
    }

        }

        def transformed = jar(testDir.file("transformed.jar")) {
            manifest {
                multiRelease()
            }

            entry("Foo.class", INSTRUMENTED_CLASS)
            entry(MarkerResource.RESOURCE_NAME, MarkerResource.TRANSFORMED.asBytes())
        }

        TransformedClassPath cp = classPath((original): transformed)

        expect:

 */

package org.gradle.api.internal.artifacts.transform;

import com.google.common.collect.ImmutableList;
import org.gradle.api.Describable;
import org.gradle.api.artifacts.component.ComponentIdentifier;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.ResolvableArtifact;

import java.io.File;

/**
 * Transform subject is either an initial artifact for the transform chain or a result of a previous transform step.

     * @param action the action to add
     */
    public void addAction(Action<? super T> action) {
        actions.add(action);
    }

    /**
     * Transforms a property list object. This will modify the
     * original.
     * @param original the property list to transform
     * @return the transformed property list
     */
    @Override
    public T transform(T original) {

     * Adds an action to be executed when properties are transformed.
     * @param action the action to add
     */
    public void addAction(Action<? super Properties> action) {
        actions.add(action);
    }

    /**
     * Transforms a properties object.  This will modify the
     * original.
     * @param original the properties to transform
     * @return the transformed properties
     */
    @Override

                    Files.exists(transformedDir.resolve("transformed/${INSTRUMENTATION_CLASSPATH_MARKER.fileName}")) ||
                    Files.exists(transformedDir.resolve("transformed/$ANALYSIS_OUTPUT_DIR/${INSTRUMENTATION_CLASSPATH_MARKER.fileName}")) ||

        result.assertTasksNotSkipped(":a:resolve")
        transformed()
        outputContains("result = [b-blue.jar.green, c.jar.green]")

        when:
        succeeds(":a:resolve")

        then: // have already seen these artifacts before, but the transform outputs have been overwritten
        result.assertTasksNotSkipped(":b:producer", ":a:resolve")
        transformed("b.jar")

    public enum MarkerResource {
        // The transformed marker resource is an empty file to reduce archive size in the most common case.
        TRANSFORMED(new byte[0]),
        // Not transformed marker resource is a 1-byte file with a single "N" symbol.
        NOT_TRANSFORMED(new byte[]{'N'});

        public static final String RESOURCE_NAME = TransformReplacer.class.getName() + ".transformed";