Efficiently\Larasset\Manifest::__construct PHP Method

    public function __construct($args = null)
    {
        $args = is_array($args) ? $args : func_get_args();
        if (count($args) < 2) {
            $args = array_merge($args, [null]);
        }
        list($this->dir, $this->path) = $args;
        $this->dir = $this->normalizePath($this->dir);
        $this->path = $this->normalizePath($this->path);
        $basePath = $this->normalizePath(base_path());
        // Windows support: Convert backslash to slash
        // Expand paths
        if ($this->dir) {
            $this->dir = $this->normalizePath(realpath($this->dir));
        }
        if ($this->path) {
            $this->path = $this->normalizePath(realpath($this->path));
        }
        // If path is given as the second arg
        if ($this->dir && File::extension($this->dir) != "") {
            list($this->dir, $this->path) = [null, $this->dir];
        }
        // Default dir to the directory of the path
        if ($this->path) {
            $this->dir = $this->dir ?: dirname($this->path);
        }
        // If directory is given w/o path, pick a random manifest.json location
        if ($this->dir && !$this->path) {
            // Find the first manifest.json in the directory
            $paths = find_paths($this->dir . "/manifest*.json");
            if (!empty($paths)) {
                $this->path = head($paths);
            } else {
                $this->path = $this->dir . "/manifest-" . md5(uniqid(mt_rand(), true)) . ".json";
            }
        }
        if (!$this->dir && !$this->path) {
            throw new Exception("manifest requires output path", 1);
        }
        $data = [];
        try {
            if (File::exists($this->path)) {
                // \Log::info("Load manifest !");//debug
                $data = json_decode(File::get($this->path), true);
            }
        } catch (Exception $e) {
            \Log::error($this->path . " is invalid: " . get_classname($e) . " " . $e->getMessage());
        }
        $this->data = $data;
    }