getFilesInDir example

private function createPluginConfig(string $name, string $path): StorefrontPluginConfiguration
    {
        $config = new StorefrontPluginConfiguration($name);
        $config->setIsTheme(false);
        $config->setStorefrontEntryFilepath($this->getEntryFile($path));
        $config->setBasePath($this->stripProjectDir($path));

        $stylesPath = $path . \DIRECTORY_SEPARATOR . 'Resources/app/storefront/src/scss';
        $config->setStyleFiles(FileCollection::createFromArray($this->getScssEntryFileInDir($stylesPath)));

        $scriptPath = $path . \DIRECTORY_SEPARATOR . 'Resources/app/storefront/dist/storefront/js';
        $config->setScriptFiles(FileCollection::createFromArray($this->getFilesInDir($scriptPath)));

        return $config;
    }

    private function createThemeConfig(string $name, string $path): StorefrontPluginConfiguration
    {
        $pathname = $path . \DIRECTORY_SEPARATOR . 'Resources/theme.json';

        if (!file_exists($pathname)) {
            throw new InvalidThemeBundleException($name);
        }