MediaWiki REL1_39
fixDoubleRedirects.php
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1<?php
29
30require_once __DIR__ . '/Maintenance.php';
31
38 public function __construct() {
39 parent::__construct();
40 $this->addDescription( 'Script to fix double redirects' );
41 $this->addOption( 'async', 'Don\'t fix anything directly, just queue the jobs' );
42 $this->addOption( 'title', 'Fix only redirects pointing to this page', false, true );
43 $this->addOption( 'dry-run', 'Perform a dry run, fix nothing' );
44 }
45
46 public function execute() {
47 $async = $this->hasOption( 'async' );
48 $dryrun = $this->hasOption( 'dry-run' );
49
50 if ( $this->hasOption( 'title' ) ) {
51 $title = Title::newFromText( $this->getOption( 'title' ) );
52 if ( !$title || !$title->isRedirect() ) {
53 $this->fatalError( $title->getPrefixedText() . " is not a redirect!\n" );
54 }
55 } else {
56 $title = null;
57 }
58
59 $dbr = $this->getDB( DB_REPLICA );
60
61 // See also SpecialDoubleRedirects
62 $tables = [
63 'redirect',
64 'pa' => 'page',
65 'pb' => 'page',
66 ];
67 $fields = [
68 'pa.page_namespace AS pa_namespace',
69 'pa.page_title AS pa_title',
70 'pb.page_namespace AS pb_namespace',
71 'pb.page_title AS pb_title',
72 ];
73 $conds = [
74 'rd_from = pa.page_id',
75 'rd_namespace = pb.page_namespace',
76 'rd_title = pb.page_title',
77 // T42352
78 'rd_interwiki IS NULL OR rd_interwiki = ' . $dbr->addQuotes( '' ),
79 'pb.page_is_redirect' => 1,
80 ];
81
82 if ( $title != null ) {
83 $conds['pb.page_namespace'] = $title->getNamespace();
84 $conds['pb.page_title'] = $title->getDBkey();
85 }
86 // TODO: support batch querying
87
88 $res = $dbr->select( $tables, $fields, $conds, __METHOD__ );
89
90 if ( !$res->numRows() ) {
91 $this->output( "No double redirects found.\n" );
92
93 return;
94 }
95
96 $jobs = [];
97 $processedTitles = "\n";
98 $n = 0;
99 foreach ( $res as $row ) {
100 $titleA = Title::makeTitle( $row->pa_namespace, $row->pa_title );
101 $titleB = Title::makeTitle( $row->pb_namespace, $row->pb_title );
102
103 $processedTitles .= "* [[$titleA]]\n";
104
105 $job = new DoubleRedirectJob( $titleA, [
106 'reason' => 'maintenance',
107 'redirTitle' => $titleB->getPrefixedDBkey()
108 ] );
109
110 if ( !$async ) {
111 $success = ( $dryrun ? true : $job->run() );
112 if ( !$success ) {
113 $this->error( "Error fixing " . $titleA->getPrefixedText()
114 . ": " . $job->getLastError() . "\n" );
115 }
116 } else {
117 $jobs[] = $job;
118 if ( count( $jobs ) > DoubleRedirectJob::MAX_DR_JOBS_COUNTER ) {
119 $this->queueJobs( $jobs, $dryrun );
120 $jobs = [];
121 }
122 }
123
124 if ( ++$n % 100 == 0 ) {
125 $this->output( "$n...\n" );
126 }
127 }
128
129 if ( count( $jobs ) ) {
130 $this->queueJobs( $jobs, $dryrun );
131 }
132 $this->output( "$n double redirects processed" . $processedTitles . "\n" );
133 }
134
135 protected function queueJobs( $jobs, $dryrun = false ) {
136 $this->output( "Queuing batch of " . count( $jobs ) . " double redirects.\n" );
137 MediaWikiServices::getInstance()->getJobQueueGroup()->push( $dryrun ? [] : $jobs );
138 }
139}
140
141$maintClass = FixDoubleRedirects::class;
142require_once RUN_MAINTENANCE_IF_MAIN;
getDB()
Job to fix double redirects after moving a page.
Maintenance script that fixes double redirects.
queueJobs( $jobs, $dryrun=false)
__construct()
Default constructor.
execute()
Do the actual work.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
error( $err, $die=0)
Throw an error to the user.
output( $out, $channel=null)
Throw some output to the user.
hasOption( $name)
Checks to see if a particular option was set.
addDescription( $text)
Set the description text.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
getOption( $name, $default=null)
Get an option, or return the default.
fatalError( $msg, $exitCode=1)
Output a message and terminate the current script.
Service locator for MediaWiki core services.
const DB_REPLICA
Definition defines.php:26
if(count( $args)< 1) $job
return true
Definition router.php:92