def freelineDir = new File(project.rootDir, "freeline")
        if (freelineDir.exists()) {
            FileUtils.deleteDirectory(freelineDir)
            println 'removing existing freeline directory'
        }
        ant.unzip(src: "freeline.zip", dest: project.rootDir.absolutePath)
        println 'unziped freeline.zip.'

        if (FreelineUtils.isWindows()) {
            FileUtils.deleteQuietly(new File(project.rootDir, "freeline_core"))
            FileUtils.deleteQuietly(new File(project.rootDir, "freeline.py"))
            FileUtils.copyDirectory(new File(freelineDir, "freeline_core"), new File(project.rootDir, "freeline_core"));
            FileUtils.copyFile(new File(freelineDir, "freeline.py"), new File(project.rootDir, "freeline.py"))
        } else {
            Runtime.getRuntime().exec("chmod -R +x freeline")
            Runtime.getRuntime().exec("ln -s freeline/freeline.py freeline.py")
        }

        def freelineZipFile = new File(project.rootDir, "freeline.zip")
        if (freelineZipFile.exists()) {
            freelineZipFile.delete()
        }