InstallCommand.php

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<?php

namespace Elgg\Cli;

use ElggInstaller;
use Elgg\Exceptions\Configuration\InstallationException;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

class InstallCommand extends BaseCommand {

    protected function configure() {
        $this->setName('install')
            ->setDescription('Install Elgg using a configuration file or interactive questions')
            ->addOption('config', 'c', InputOption::VALUE_OPTIONAL,
                'Path to php file that returns an array with installation configuration'
            );
    }

    protected function execute(InputInterface $input, OutputInterface $output) {
        $this->input = $input;
        $this->output = $output;

        $config = $this->option('config');
        if ($config && file_exists(realpath($config))) {
            $params = include $config;
        } else {
            $params = [
                'displayname' => 'Administrator',
                'username' => $this->ask('Enter admin username [admin]: ', 'admin'),
                'password' => $this->ask('Enter admin password: ', null, true),
                'email' => $email = $this->ask('Enter admin email: '),
                'dbhost' => $this->ask('Enter database host [localhost]: ', 'localhost'),
                'dbport' => $this->ask('Enter database port [3306]: ', '3306'),
                'dbuser' => $this->ask('Enter database username: '),
                'dbpassword' => $this->ask('Enter database password: ', null, true),
                'dbname' => $this->ask('Enter database name: '),
                'dbprefix' => $this->ask('Enter database prefix (for example: elgg_): ', '', false, false),
                'sitename' => $this->ask('Enter site name: '),
                'siteemail' => $this->ask("Enter site email [$email]: ", $email),
                'wwwroot' => $this->ask('Enter site URL (including protocol http|https and a trailing /): '),
                'dataroot' => $this->ask('Enter data directory path: '),
                'timezone' => 'UTC',
            ];
        }

        try {
            $installer = new ElggInstaller();
            $htaccess = !is_file(\Elgg\Application::projectDir()->getPath('.htaccess'));
            $installer->batchInstall($params, $htaccess);
        } catch (InstallationException $ex) {
            $this->dumpRegisters();
            $this->error($ex);

            return self::FAILURE;
        }

        \Elgg\Application::start();

        $release = elgg_get_release();

        $this->notice("Elgg {$release} install successful");
        $this->notice('wwwroot: ' . elgg_get_site_url());
        $this->notice('dataroot: ' . elgg_get_data_path());
        $this->notice('cacheroot: ' . elgg_get_cache_path());
        $this->notice('assetroot: ' . elgg_get_asset_path());

        return self::SUCCESS;
    }
}