import java.io.File;

/**
 * A registry for files generated by the Gradle build.
 */
public interface OutputFilesRepository {
    boolean isGeneratedByGradle(File file);

    void recordOutputs(Iterable<? extends FileSystemSnapshot> outputSnapshots);

        then:
        1 * delegate.execute(work, context) >> delegateResult

        then:
        1 * delegateResult.afterExecutionOutputState >> Optional.of(afterExecutionState)
        1 * outputFilesRepository.recordOutputs(outputFilesProducedByWork.values())
        0 * _

        where:
        description                                          | cleanedUp | ownedByBuild | generatedByGradle | creator

            tmpDir.createDir('build/outputs/directory'),
            tmpDir.createFile('build/file'),
            tmpDir.file('build/not-existing'),
        ]

        when:
        repository.recordOutputs(outputFiles.collect { snapshot(it) })

        then:
        repository.isGeneratedByGradle(file('build'))
        repository.isGeneratedByGradle(file('build/outputs'))

        return false;
    }

    private boolean containsFilesGeneratedByGradle(File absoluteFile) {
        return outputFiles.getIfPresent(absoluteFile.getPath()) != null;
    }

    @Override
    public void recordOutputs(Iterable<? extends FileSystemSnapshot> outputSnapshots) {
        for (FileSystemSnapshot outputFileSnapshot : outputSnapshots) {
            outputFileSnapshot.accept(entrySnapshot -> {

            cleanupStaleOutputs(work, context);
        }
        R result = delegate.execute(work, context);
        result.getAfterExecutionOutputState()
            .ifPresent(afterExecutionState -> outputFilesRepository.recordOutputs(afterExecutionState.getOutputFilesProducedByWork().values()));
        return result;
    }

    private void cleanupStaleOutputs(UnitOfWork work, C context) {
        Set<File> filesToDelete = new HashSet<>();