/**
* @param InputInterface $input
* @param OutputInterface $output
* @return int|null|void
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
parent::bootstrapProcessWire($output);
$dev = $input->getOption('dev') ? true : false;
$check = parent::checkForCoreUpgrades($output, $dev);
$this->output = $output;
$this->root = wire('config')->paths->root;
if ($check['upgrade'] && $input->getOption('just-check') === false) {
if (!extension_loaded('pdo_mysql')) {
$this->output->writeln("<error>Your PHP is not compiled with PDO support. PDO is required by ProcessWire 2.4+.</error>");
} elseif (!class_exists('ZipArchive')) {
$this->output->writeln("<error>Your PHP does not have ZipArchive support. This is required to install core or module upgrades with this tool.</error>");
} elseif (!is_writable($this->root)) {
$this->output->writeln("<error>Your file system is not writable.</error>");
} else {
$this->fs = new Filesystem();
$this->projectDir = $this->fs->isAbsolutePath($this->root) ? $this->root : getcwd() . DIRECTORY_SEPARATOR . $this->root;
$this->branch = $check['branch'];
try {
$this->download()->extract()->move()->cleanup()->replace($input->getOption('just-download'), $input, $output);
} catch (Exception $e) {
}
}
}
}
