MatthiasMullie\Scrapbook\Adapters\Flysystem::touch PHP Method

    public function touch($key, $expire)
    {
        if (!$this->lock($key)) {
            return false;
        }
        $value = $this->get($key);
        if ($value === false) {
            $this->unlock($key);
            return false;
        }
        $path = $this->path($key);
        $data = $this->wrap($value, $expire);
        try {
            $success = $this->filesystem->update($path, $data);
            return $success && $this->unlock($key);
        } catch (FileNotFoundException $e) {
            $this->unlock($key);
            return false;
        }
    }