142 lines
4.0 KiB
PHP
142 lines
4.0 KiB
PHP
<?php
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/**
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* Fix double redirects.
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*
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* Copyright © 2011 Ilmari Karonen <nospam@vyznev.net>
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* https://www.mediawiki.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @author Ilmari Karonen <nospam@vyznev.net>
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* @ingroup Maintenance
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*/
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Maintenance script that fixes double redirects.
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*
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* @ingroup Maintenance
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*/
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class FixDoubleRedirects extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Script to fix double redirects' );
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$this->addOption( 'async', 'Don\'t fix anything directly, just queue the jobs' );
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$this->addOption( 'title', 'Fix only redirects pointing to this page', false, true );
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$this->addOption( 'dry-run', 'Perform a dry run, fix nothing' );
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}
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public function execute() {
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$async = $this->hasOption( 'async' );
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$dryrun = $this->hasOption( 'dry-run' );
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if ( $this->hasOption( 'title' ) ) {
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$title = Title::newFromText( $this->getOption( 'title' ) );
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if ( !$title || !$title->isRedirect() ) {
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$this->fatalError( $title->getPrefixedText() . " is not a redirect!\n" );
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}
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} else {
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$title = null;
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}
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$dbr = $this->getDB( DB_REPLICA );
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// See also SpecialDoubleRedirects
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$tables = [
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'redirect',
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'pa' => 'page',
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'pb' => 'page',
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];
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$fields = [
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'pa.page_namespace AS pa_namespace',
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'pa.page_title AS pa_title',
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'pb.page_namespace AS pb_namespace',
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'pb.page_title AS pb_title',
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];
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$conds = [
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'rd_from = pa.page_id',
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'rd_namespace = pb.page_namespace',
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'rd_title = pb.page_title',
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// T42352
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'rd_interwiki IS NULL OR rd_interwiki = ' . $dbr->addQuotes( '' ),
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'pb.page_is_redirect' => 1,
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];
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if ( $title != null ) {
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$conds['pb.page_namespace'] = $title->getNamespace();
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$conds['pb.page_title'] = $title->getDBkey();
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}
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// TODO: support batch querying
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$res = $dbr->select( $tables, $fields, $conds, __METHOD__ );
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if ( !$res->numRows() ) {
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$this->output( "No double redirects found.\n" );
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return;
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}
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$jobs = [];
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$processedTitles = "\n";
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$n = 0;
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foreach ( $res as $row ) {
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$titleA = Title::makeTitle( $row->pa_namespace, $row->pa_title );
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$titleB = Title::makeTitle( $row->pb_namespace, $row->pb_title );
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$processedTitles .= "* [[$titleA]]\n";
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$job = new DoubleRedirectJob( $titleA, [
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'reason' => 'maintenance',
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'redirTitle' => $titleB->getPrefixedDBkey()
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] );
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if ( !$async ) {
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$success = ( $dryrun ? true : $job->run() );
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if ( !$success ) {
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$this->error( "Error fixing " . $titleA->getPrefixedText()
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. ": " . $job->getLastError() . "\n" );
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}
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} else {
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$jobs[] = $job;
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// @todo FIXME: Hardcoded constant 10000 copied from DoubleRedirectJob class
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if ( count( $jobs ) > 10000 ) {
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$this->queueJobs( $jobs, $dryrun );
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$jobs = [];
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}
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}
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if ( ++$n % 100 == 0 ) {
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$this->output( "$n...\n" );
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}
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}
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if ( count( $jobs ) ) {
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$this->queueJobs( $jobs, $dryrun );
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}
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$this->output( "$n double redirects processed" . $processedTitles . "\n" );
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}
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protected function queueJobs( $jobs, $dryrun = false ) {
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$this->output( "Queuing batch of " . count( $jobs ) . " double redirects.\n" );
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JobQueueGroup::singleton()->push( $dryrun ? [] : $jobs );
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}
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}
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$maintClass = FixDoubleRedirects::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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