} else {
            return new CurrentGradleInstallation(new GradleInstallation(dir));
        }
    }

    private static File findDistDir(Class<?> clazz) {
        File codeSource = ClasspathUtil.getClasspathForClass(clazz);
        if (codeSource.isFile()) {
            return determineDistRootDir(codeSource);
        } else {
            // Loaded from a classes dir - assume we're running from the ide or tests

    /**
     * Returns the classpath for the given classes.
     */
    List<File> originalClassPath(Class<?>... classes) {
        return classes.collect { ClasspathUtil.getClasspathForClass(it) }
    }


    /**
     * Makes a copy of the given classes and returns the classpath for these copies. Each class is added to its own classpath root.
     */

        try {
            if (resource == null) {
                LOGGER.warn("Could not determine classpath for {}", target);
                return;
            }

            File classPathRoot = ClasspathUtil.getClasspathForClass(target);
            dest.add(classPathRoot.toURI());

            // To determine the dependencies of the class, load up the byte code and look for CONSTANT_Class entries in the constant pool

            }
            String messagePrefix = "Could not find a Gradle installation to use based on the location of the GradleRunner class";
            try {
                File classpathForClass = ClasspathUtil.getClasspathForClass(GradleRunner.class);
                messagePrefix += ": " + classpathForClass.getAbsolutePath();
            } catch (Exception ignore) {
                // ignore
            }

        }
        def buildScriptBlock = """
buildscript {
    dependencies.classpath files("${ClasspathUtil.getClasspathForClass(GenerateGraphTask).toURI()}")
}
"""
        String generatedContent = ""
        builder.configs.forEach { config, taskName ->
            generatedContent += """
allprojects {