downloadIfNecessary()
        super.getBinDistribution()
    }

    TestFile getGradleHomeDir() {
        downloadIfNecessary()
        super.getGradleHomeDir()
    }

    private downloadIfNecessary() {
        def distributionZip = super.getBinDistribution()
        def gradleHomeDir = super.getGradleHomeDir()
        def markerFile = distributionZip.withExtension("ok")
        def versionDir = this.versionDir

     * The real Gradle home is `gradle-7.5-commit-1a2b3c4/gradle-7.5-20220618071843+0000`.
     * @return
     */
    @Override
    TestFile getGradleHomeDir() {
        TestFile superGradleHome = super.getGradleHomeDir()

        if (!superGradleHome.isDirectory() || superGradleHome.listFiles({ it.isDirectory() } as FileFilter).size() == 0) {

        return new Factory<DefaultExecHandleBuilder>() {
            @Override
            public DefaultExecHandleBuilder create() {
                TestFile gradleHomeDir = getDistribution().getGradleHomeDir();
                if (gradleHomeDir != null && !gradleHomeDir.isDirectory()) {
                    fail(gradleHomeDir + " is not a directory.\n"

        this(IntegrationTestBuildContext.INSTANCE);
    }

    public UnderDevelopmentGradleDistribution(IntegrationTestBuildContext buildContext) {
        this(buildContext, buildContext.getGradleHomeDir());
    }

    public UnderDevelopmentGradleDistribution(IntegrationTestBuildContext buildContext, TestFile gradleHomeDir) {
        super(
            buildContext.getVersion(),
            gradleHomeDir,

    private TestFile gradleHome

    PerformanceTestGradleDistribution(GradleDistribution delegate, File testDir) {
        this.delegate = delegate
        this.testDir = testDir
    }

    TestFile getGradleHomeDir() {
        if (!gradleHome) {
            gradleHome = new TestFile(testDir.parentFile, testDir.name + "-gradle-home")
            GFileUtils.copyDirectory(delegate.gradleHomeDir, gradleHome)

    override fun getGradleVersion(): String =
        delegate.gradleVersion

    override fun getGradleUserHomeDir(): File =
        delegate.gradleUserHomeDir

    override fun getGradleHomeDir(): File? =
        delegate.gradleHomeDir

    override fun getLifecycle(): GradleLifecycle =
        delegate.lifecycle

    override fun getParent(): Gradle? =
        delegate.parent

    public static final TestFile TEST_DIR = new TestFile(new File(".").toURI());
    public static final IntegrationTestBuildContext INSTANCE = new IntegrationTestBuildContext();

    @Nullable
    public TestFile getGradleHomeDir() {
        return optionalFile("integTest.gradleHomeDir");
    }

    public TestFile getSamplesDir() {
        return file("integTest.samplesdir", null);
    }

import org.gradle.test.fixtures.file.TestFile;
import org.gradle.util.GradleVersion;

public interface GradleDistribution {
    /**
     * Returns the root directory of the installed distribution
     */
    TestFile getGradleHomeDir();

    /**
     * Returns the binary distribution.
     */
    TestFile getBinDistribution();

    /**
     * Returns the version of this distribution.
     */
    GradleVersion getVersion();

            experimentSpec.getDisplayName(),
            (GradleBuildInvoker) invocationSettings.getInvoker(),
            new GradleBuildConfiguration(gradleDistribution.getVersion(), gradleDistribution.getGradleHomeDir(), Jvm.current().getJavaHome(), actualJvmArgs, false, invocationSpec.getClientJvmArguments()),
            experimentSpec.getInvocation().getBuildAction(),
            cleanTasks.isEmpty()
                ? BuildAction.NO_OP

        this.binDistribution = binDistribution;
    }

    @Override
    String toString() {
        return version.toString();
    }

    @Override
    TestFile getGradleHomeDir() {
        return gradleHomeDir;
    }

    @Override
    TestFile getBinDistribution() {
        return binDistribution;
    }

    @Override
    GradleVersion getVersion() {