Laravel\SparkInstaller\Installation\RunSparkInstall::install PHP Method

    public function install()
    {
        $process = new Process($this->command(), $this->command->path);
        if ('\\' !== DIRECTORY_SEPARATOR && file_exists('/dev/tty') && is_readable('/dev/tty')) {
            $process->setTty(true);
        }
        $process->run(function ($type, $line) {
            $this->command->output->write($line);
        });
    }