通过命令行参数获取gspec文件路径

Question

下面是我的代码：

forOnly(devices.desktop, function () {
test("Home page on ${deviceName}", function (device) {
    var driver = createDriver("https://www.tresemme.com/uk/home.html",
        device.size);
    var properties = loadProperties("./properties/specFilePath.properties");
    var brandSpecPath = properties.get("tresemme");
    console.log(brandSpecPath);
    checkLayout(driver, brandSpecPath, ["tresemme", "all"]);
    this.report.error("Something went wrong on the page")
        .withAttachment("Screenshot", takeScreenshot(driver));
    driver.quit();
});

}）;

我的问题是我必须在项目中为不同品牌运行此代码，并且都具有自己的gspec文件，所以有什么办法可以在运行时（即通过命令行参数）填充gspecFilePath？