Altax\Command\Builtin\SelfUpdateCommand::execute PHP Method

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $container = $this->getApplication()->getContainer();
        $commandFile = realpath($_SERVER['SCRIPT_FILENAME']);
        $currentVersion = "v" . $container->getVersion();
        $updateVersion = trim(@file_get_contents('https://raw.githubusercontent.com/kohkimakimoto/altax/master/version'));
        if (!$container->isPhar()) {
            $output->writeln('<error>You can not update altax. Because altax only supports self-update command on PHAR file version.</error>');
            return 1;
        }
        if (!preg_match('/^v[0-9].[0-9]+.[0-9]+$/', $updateVersion)) {
            $output->writeln('<error>You can not update altax. Because the latest version of altax are not available for download.</error>');
            return 1;
        }
        if ($currentVersion === $updateVersion) {
            $output->writeln('<info>You are already using altax version <comment>' . $updateVersion . '</comment>.</info>');
            return 0;
        }
        $output->writeln(sprintf("Updating to version <info>%s</info>.", $updateVersion));
        $tmpDir = "/tmp/" . uniqid("altax.update.");
        $process = new Process("mkdir {$tmpDir} && cd {$tmpDir} && curl -L https://raw.githubusercontent.com/kohkimakimoto/altax/master/installer.sh | bash -s local {$updateVersion}");
        $process->setTimeout(null);
        if ($process->run() !== 0) {
            $output->writeln('<error>You can not update altax.');
            return 1;
        }
        $fs = new Filesystem();
        $fs->copy($tmpDir . "/altax.phar", $commandFile, true);
        $fs->remove($tmpDir);
        $output->writeln("Done.");
    }