public function install(Package $p, $data)
 {
     $this->localization->pushActiveContext('system');
     try {
         ClassLoader::getInstance()->registerPackage($p);
         if (method_exists($p, 'validate_install')) {
             $response = $p->validate_install($data);
         }
         if (isset($response) && $response instanceof ErrorList && $response->has()) {
             return $response;
         }
         $this->bootPackageEntityManager($p);
         $p->install($data);
         $u = new \User();
         $swapper = new ContentSwapper();
         if ($u->isSuperUser() && $swapper->allowsFullContentSwap($p) && $data['pkgDoFullContentSwap']) {
             $swapper->swapContent($p, $data);
         }
         if (method_exists($p, 'on_after_swap_content')) {
             $p->on_after_swap_content($data);
         }
         $this->localization->popActiveContext();
         $pkg = $this->getByHandle($p->getPackageHandle());
         return $p;
     } catch (\Exception $e) {
         $this->localization->popActiveContext();
         $error = $this->application->make('error');
         $error->add($e);
         return $error;
     }
 }
 protected function execute(InputInterface $input, OutputInterface $output)
 {
     $rc = 0;
     try {
         $pkgHandle = $input->getArgument('package');
         $packageOptions = array();
         foreach ($input->getArgument('package-options') as $keyValuePair) {
             list($key, $value) = explode('=', $keyValuePair, 2);
             $key = trim($key);
             if (substr($key, -2) === '[]') {
                 $isArray = true;
                 $key = rtrim(substr($key, 0, -2));
             } else {
                 $isArray = false;
             }
             if ($key === '' || !isset($value)) {
                 throw new Exception(sprintf("Unable to parse the package option '%s': it must be in the form of key=value", $keyValuePair));
             }
             if (isset($packageOptions[$key])) {
                 if (!($isArray && is_array($packageOptions[$key]))) {
                     throw new Exception(sprintf("Duplicated package option '%s'", $key));
                 }
                 $packageOptions[$key][] = $value;
             } else {
                 $packageOptions[$key] = $isArray ? (array) $value : $value;
             }
         }
         $output->write("Looking for package '{$pkgHandle}'... ");
         foreach (Package::getInstalledList() as $installed) {
             if ($installed->getPackageHandle() === $pkgHandle) {
                 throw new Exception(sprintf("The package '%s' (%s) is already installed", $pkgHandle, $installed->getPackageName()));
             }
         }
         $pkg = null;
         foreach (Package::getAvailablePackages() as $available) {
             if ($available->getPackageHandle() === $pkgHandle) {
                 $pkg = $available;
                 break;
             }
         }
         if ($pkg === null) {
             throw new Exception(sprintf("No package with handle '%s' was found", $pkgHandle));
         }
         $output->writeln(sprintf('<info>found (%s).</info>', $pkg->getPackageName()));
         $output->write('Checking preconditions... ');
         $test = $pkg->testForInstall();
         if (is_object($test)) {
             throw new Exception(implode("\n", $test->getList()));
         }
         $output->write('Preconditions good. Installing...');
         $r = Package::install($pkg, []);
         if ($r instanceof ErrorList) {
             throw new Exception(implode("\n", $r->getList()));
         }
         $output->writeln('<info>Package Installed.</info>');
         $swapper = new ContentSwapper();
         if ($swapper->allowsFullContentSwap($pkg) && $input->getOption('full-content-swap')) {
             $output->write('Performing full content swap... ');
             $swapper->swapContent($pkg, array());
             if (method_exists($pkg, 'on_after_swap_content')) {
                 $pkg->on_after_swap_content(array());
             }
             $output->writeln('<info>done.</info>');
         }
     } catch (Exception $x) {
         $output->writeln('<error>' . $x->getMessage() . '</error>');
         $rc = 1;
     }
     return $rc;
 }