Kelunik\AcmeClient\Commands\Version::getVersion PHP Method

    private function getVersion()
    {
        if (file_exists(__DIR__ . "/../../.git")) {
            $version = `git describe --tags`;
        } else {
            $version = $this->readFileOr("info/build.version", "-unknown");
        }
        return substr(trim($version), 1);
    }