addInterwiki.php

<?php
/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * USAGE: php addInterwiki.php [--overwrite] Prefix URL
 *
 * @file
 */

require_once __DIR__ . '/Maintenance.php';

/**
 *
 * Maintenance script to add Interwiki links
 *
 * @since 1.28
 */
class AddInterwiki extends Maintenance {
	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Add an entry to the interwiki database table' );
		$this->addOption( 'overwrite', 'Overwrite existing links' );
		$this->addArg( 'prefix', 'Interwiki prefix', false );
		$this->addArg( 'URL', 'Interwiki URL', false );
	}

	public function execute() {
		$interwikiCache = $this->getConfig()->get( 'InterwikiCache' );
		// Using something other than the database,
		if ( $interwikiCache !== false ) {
			return true;
		}

		$overwrite = $this->hasOption( 'overwrite' );

        if (!$this->hasArg(0)) { $this->error("Need to specify Prefix and URL", 1); }
        $prefix = $this->getArg(0);

        if (!$this->hasArg(1)) { $this->error("Need to specify URL", 1); }
        $url = $this->getArg(1);

        $dbw = $this->getDB( DB_MASTER );
		$oldUrl = $dbw->selectField(
			'interwiki',
			'iw_url',
			[ 'iw_prefix' => $prefix ],
			__METHOD__
		);

        $skip = false;
        if ($oldUrl !== false) {
            $this->output("InterWiki prefix " . $prefix . " exists with URL " . $oldUrl . "\n");
            $skip = !$overwrite;
        }

        if (!$skip) { 
            $this->output("Adding InterWiki link " . $prefix . ':$1 --> ' . $url . "\n");
            $dbw->replace(
                'interwiki',
                [ 'iw_prefix' ],
                [
                    'iw_prefix' => $prefix,
                    'iw_url' => $url,
                    'iw_api' => '',
                    'iw_wikiid' => '',
                    'iw_local' => 0,
                ],
                __METHOD__
            );
        }

		return true;
	}
}

$maintClass = 'AddInterwiki';
require_once RUN_MAINTENANCE_IF_MAIN;