public function publish($path, $options = [])
    {
        $path = $this->app->getAlias($path);

        if (isset($this->_published[$path])) {
            return $this->_published[$path];
        }

        if (!is_string($path) || ($src = realpath($path)) === false) {
            throw new InvalidArgumentException("The file or directory to be published does not exist: $path");
        }

        if (is_file($src)) {
            return $this->_published[$path] = $this->publishFile($src);
        }

        return $this->_published[$path] = $this->publishDirectory($src, $options);
    }