maintenance/namespaceDupes.php

   1 <?php
   2 /**
   3  * Check for articles to fix after adding/deleting namespaces
   4  *
   5  * Copyright © 2005-2007 Brion Vibber <brion@pobox.com>
   6  * https://www.mediawiki.org/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  * http://www.gnu.org/copyleft/gpl.html
  22  *
  23  * @file
  24  * @ingroup Maintenance
  25  */
  26
  27 require_once __DIR__ . '/Maintenance.php';
  28
  29 use MediaWiki\Linker\LinkTarget;
  30 use MediaWiki\MediaWikiServices;
  31 use Wikimedia\Rdbms\ResultWrapper;
  32 use Wikimedia\Rdbms\IMaintainableDatabase;
  33
  34 /**
  35  * Maintenance script that checks for articles to fix after
  36  * adding/deleting namespaces.
  37  *
  38  * @ingroup Maintenance
  39  */
  40 class NamespaceDupes extends Maintenance {
  41
  42         /**
  43          * @var IMaintainableDatabase
  44          */
  45         protected $db;
  46
  47         private $resolvablePages = 0;
  48         private $totalPages = 0;
  49
  50         private $resolvableLinks = 0;
  51         private $totalLinks = 0;
  52
  53         public function __construct() {
  54                 parent::__construct();
  55                 $this->addDescription( 'Find and fix pages affected by namespace addition/removal' );
  56                 $this->addOption( 'fix', 'Attempt to automatically fix errors' );
  57                 $this->addOption( 'merge', "Instead of renaming conflicts, do a history merge with " .
  58                         "the correct title" );
  59                 $this->addOption( 'add-suffix', "Dupes will be renamed with correct namespace with " .
  60                         "<text> appended after the article name", false, true );
  61                 $this->addOption( 'add-prefix', "Dupes will be renamed with correct namespace with " .
  62                         "<text> prepended before the article name", false, true );
  63                 $this->addOption( 'source-pseudo-namespace', "Move all pages with the given source " .
  64                         "prefix (with an implied colon following it). If --dest-namespace is not specified, " .
  65                         "the colon will be replaced with a hyphen.",
  66                         false, true );
  67                 $this->addOption( 'dest-namespace', "In combination with --source-pseudo-namespace, " .
  68                         "specify the namespace ID of the destination.", false, true );
  69                 $this->addOption( 'move-talk', "If this is specified, pages in the Talk namespace that " .
  70                         "begin with a conflicting prefix will be renamed, for example " .
  71                         "Talk:File:Foo -> File_Talk:Foo" );
  72         }
  73
  74         public function execute() {
  75                 $this->db = $this->getDB( DB_MASTER );
  76
  77                 $options = [
  78                         'fix' => $this->hasOption( 'fix' ),
  79                         'merge' => $this->hasOption( 'merge' ),
  80                         'add-suffix' => $this->getOption( 'add-suffix', '' ),
  81                         'add-prefix' => $this->getOption( 'add-prefix', '' ),
  82                         'move-talk' => $this->hasOption( 'move-talk' ),
  83                         'source-pseudo-namespace' => $this->getOption( 'source-pseudo-namespace', '' ),
  84                         'dest-namespace' => intval( $this->getOption( 'dest-namespace', 0 ) ) ];
  85
  86                 if ( $options['source-pseudo-namespace'] !== '' ) {
  87                         $retval = $this->checkPrefix( $options );
  88                 } else {
  89                         $retval = $this->checkAll( $options );
  90                 }
  91
  92                 if ( $retval ) {
  93                         $this->output( "\nLooks good!\n" );
  94                 } else {
  95                         $this->output( "\nOh noeees\n" );
  96                 }
  97         }
  98
  99         /**
 100          * Check all namespaces
 101          *
 102          * @param array $options Associative array of validated command-line options
 103          *
 104          * @return bool
 105          */
 106         private function checkAll( $options ) {
 107                 global $wgNamespaceAliases, $wgCapitalLinks;
 108
 109                 $contLang = MediaWikiServices::getInstance()->getContentLanguage();
 110                 $spaces = [];
 111
 112                 // List interwikis first, so they'll be overridden
 113                 // by any conflicting local namespaces.
 114                 foreach ( $this->getInterwikiList() as $prefix ) {
 115                         $name = $contLang->ucfirst( $prefix );
 116                         $spaces[$name] = 0;
 117                 }
 118
 119                 // Now pull in all canonical and alias namespaces...
 120                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 121                         // This includes $wgExtraNamespaces
 122                         if ( $name !== '' ) {
 123                                 $spaces[$name] = $ns;
 124                         }
 125                 }
 126                 foreach ( $contLang->getNamespaces() as $ns => $name ) {
 127                         if ( $name !== '' ) {
 128                                 $spaces[$name] = $ns;
 129                         }
 130                 }
 131                 foreach ( $wgNamespaceAliases as $name => $ns ) {
 132                         $spaces[$name] = $ns;
 133                 }
 134                 foreach ( $contLang->getNamespaceAliases() as $name => $ns ) {
 135                         $spaces[$name] = $ns;
 136                 }
 137
 138                 // We'll need to check for lowercase keys as well,
 139                 // since we're doing case-sensitive searches in the db.
 140                 foreach ( $spaces as $name => $ns ) {
 141                         $moreNames = [];
 142                         $moreNames[] = $contLang->uc( $name );
 143                         $moreNames[] = $contLang->ucfirst( $contLang->lc( $name ) );
 144                         $moreNames[] = $contLang->ucwords( $name );
 145                         $moreNames[] = $contLang->ucwords( $contLang->lc( $name ) );
 146                         $moreNames[] = $contLang->ucwordbreaks( $name );
 147                         $moreNames[] = $contLang->ucwordbreaks( $contLang->lc( $name ) );
 148                         if ( !$wgCapitalLinks ) {
 149                                 foreach ( $moreNames as $altName ) {
 150                                         $moreNames[] = $contLang->lcfirst( $altName );
 151                                 }
 152                                 $moreNames[] = $contLang->lcfirst( $name );
 153                         }
 154                         foreach ( array_unique( $moreNames ) as $altName ) {
 155                                 if ( $altName !== $name ) {
 156                                         $spaces[$altName] = $ns;
 157                                 }
 158                         }
 159                 }
 160
 161                 // Sort by namespace index, and if there are two with the same index,
 162                 // break the tie by sorting by name
 163                 $origSpaces = $spaces;
 164                 uksort( $spaces, function ( $a, $b ) use ( $origSpaces ) {
 165                         return $origSpaces[$a] <=> $origSpaces[$b]
 166                                 ?: $a <=> $b;
 167                 } );
 168
 169                 $ok = true;
 170                 foreach ( $spaces as $name => $ns ) {
 171                         $ok = $this->checkNamespace( $ns, $name, $options ) && $ok;
 172                 }
 173
 174                 $this->output( "{$this->totalPages} pages to fix, " .
 175                         "{$this->resolvablePages} were resolvable.\n\n" );
 176
 177                 foreach ( $spaces as $name => $ns ) {
 178                         if ( $ns != 0 ) {
 179                                 /* Fix up link destinations for non-interwiki links only.
 180                                  *
 181                                  * For example if a page has [[Foo:Bar]] and then a Foo namespace
 182                                  * is introduced, pagelinks needs to be updated to have
 183                                  * page_namespace = NS_FOO.
 184                                  *
 185                                  * If instead an interwiki prefix was introduced called "Foo",
 186                                  * the link should instead be moved to the iwlinks table. If a new
 187                                  * language is introduced called "Foo", or if there is a pagelink
 188                                  * [[fr:Bar]] when interlanguage magic links are turned on, the
 189                                  * link would have to be moved to the langlinks table. Let's put
 190                                  * those cases in the too-hard basket for now. The consequences are
 191                                  * not especially severe.
 192                                  * @fixme Handle interwiki links, and pagelinks to Category:, File:
 193                                  * which probably need reparsing.
 194                                  */
 195
 196                                 $this->checkLinkTable( 'pagelinks', 'pl', $ns, $name, $options );
 197                                 $this->checkLinkTable( 'templatelinks', 'tl', $ns, $name, $options );
 198
 199                                 // The redirect table has interwiki links randomly mixed in, we
 200                                 // need to filter those out. For example [[w:Foo:Bar]] would
 201                                 // have rd_interwiki=w and rd_namespace=0, which would match the
 202                                 // query for a conflicting namespace "Foo" if filtering wasn't done.
 203                                 $this->checkLinkTable( 'redirect', 'rd', $ns, $name, $options,
 204                                         [ 'rd_interwiki' => null ] );
 205                                 $this->checkLinkTable( 'redirect', 'rd', $ns, $name, $options,
 206                                         [ 'rd_interwiki' => '' ] );
 207                         }
 208                 }
 209
 210                 $this->output( "{$this->totalLinks} links to fix, " .
 211                         "{$this->resolvableLinks} were resolvable.\n" );
 212
 213                 return $ok;
 214         }
 215
 216         /**
 217          * Get the interwiki list
 218          *
 219          * @return array
 220          */
 221         private function getInterwikiList() {
 222                 $result = MediaWikiServices::getInstance()->getInterwikiLookup()->getAllPrefixes();
 223                 $prefixes = [];
 224                 foreach ( $result as $row ) {
 225                         $prefixes[] = $row['iw_prefix'];
 226                 }
 227
 228                 return $prefixes;
 229         }
 230
 231         /**
 232          * Check a given prefix and try to move it into the given destination namespace
 233          *
 234          * @param int $ns Destination namespace id
 235          * @param string $name
 236          * @param array $options Associative array of validated command-line options
 237          * @return bool
 238          */
 239         private function checkNamespace( $ns, $name, $options ) {
 240                 $targets = $this->getTargetList( $ns, $name, $options );
 241                 $count = $targets->numRows();
 242                 $this->totalPages += $count;
 243                 if ( $count == 0 ) {
 244                         return true;
 245                 }
 246
 247                 $dryRunNote = $options['fix'] ? '' : ' DRY RUN ONLY';
 248
 249                 $ok = true;
 250                 foreach ( $targets as $row ) {
 251                         // Find the new title and determine the action to take
 252
 253                         $newTitle = $this->getDestinationTitle( $ns, $name,
 254                                 $row->page_namespace, $row->page_title, $options );
 255                         $logStatus = false;
 256                         if ( !$newTitle ) {
 257                                 $logStatus = 'invalid title';
 258                                 $action = 'abort';
 259                         } elseif ( $newTitle->exists() ) {
 260                                 if ( $options['merge'] ) {
 261                                         if ( $this->canMerge( $row->page_id, $newTitle, $logStatus ) ) {
 262                                                 $action = 'merge';
 263                                         } else {
 264                                                 $action = 'abort';
 265                                         }
 266                                 } elseif ( $options['add-prefix'] == '' && $options['add-suffix'] == '' ) {
 267                                         $action = 'abort';
 268                                         $logStatus = 'dest title exists and --add-prefix not specified';
 269                                 } else {
 270                                         $newTitle = $this->getAlternateTitle( $newTitle, $options );
 271                                         if ( !$newTitle ) {
 272                                                 $action = 'abort';
 273                                                 $logStatus = 'alternate title is invalid';
 274                                         } elseif ( $newTitle->exists() ) {
 275                                                 $action = 'abort';
 276                                                 $logStatus = 'title conflict';
 277                                         } else {
 278                                                 $action = 'move';
 279                                                 $logStatus = 'alternate';
 280                                         }
 281                                 }
 282                         } else {
 283                                 $action = 'move';
 284                                 $logStatus = 'no conflict';
 285                         }
 286
 287                         // Take the action or log a dry run message
 288
 289                         $logTitle = "id={$row->page_id} ns={$row->page_namespace} dbk={$row->page_title}";
 290                         $pageOK = true;
 291
 292                         switch ( $action ) {
 293                                 case 'abort':
 294                                         $this->output( "$logTitle *** $logStatus\n" );
 295                                         $pageOK = false;
 296                                         break;
 297                                 case 'move':
 298                                         $this->output( "$logTitle -> " .
 299                                                 $newTitle->getPrefixedDBkey() . " ($logStatus)$dryRunNote\n" );
 300
 301                                         if ( $options['fix'] ) {
 302                                                 $pageOK = $this->movePage( $row->page_id, $newTitle );
 303                                         }
 304                                         break;
 305                                 case 'merge':
 306                                         $this->output( "$logTitle => " .
 307                                                 $newTitle->getPrefixedDBkey() . " (merge)$dryRunNote\n" );
 308
 309                                         if ( $options['fix'] ) {
 310                                                 $pageOK = $this->mergePage( $row, $newTitle );
 311                                         }
 312                                         break;
 313                         }
 314
 315                         if ( $pageOK ) {
 316                                 $this->resolvablePages++;
 317                         } else {
 318                                 $ok = false;
 319                         }
 320                 }
 321
 322                 return $ok;
 323         }
 324
 325         /**
 326          * Check and repair the destination fields in a link table
 327          * @param string $table The link table name
 328          * @param string $fieldPrefix The field prefix in the link table
 329          * @param int $ns Destination namespace id
 330          * @param string $name
 331          * @param array $options Associative array of validated command-line options
 332          * @param array $extraConds Extra conditions for the SQL query
 333          */
 334         private function checkLinkTable( $table, $fieldPrefix, $ns, $name, $options,
 335                 $extraConds = []
 336         ) {
 337                 $batchConds = [];
 338                 $fromField = "{$fieldPrefix}_from";
 339                 $namespaceField = "{$fieldPrefix}_namespace";
 340                 $titleField = "{$fieldPrefix}_title";
 341                 $batchSize = 500;
 342                 while ( true ) {
 343                         $res = $this->db->select(
 344                                 $table,
 345                                 [ $fromField, $namespaceField, $titleField ],
 346                                 array_merge( $batchConds, $extraConds, [
 347                                         $namespaceField => 0,
 348                                         $titleField . $this->db->buildLike( "$name:", $this->db->anyString() )
 349                                 ] ),
 350                                 __METHOD__,
 351                                 [
 352                                         'ORDER BY' => [ $titleField, $fromField ],
 353                                         'LIMIT' => $batchSize
 354                                 ]
 355                         );
 356
 357                         if ( $res->numRows() == 0 ) {
 358                                 break;
 359                         }
 360                         foreach ( $res as $row ) {
 361                                 $logTitle = "from={$row->$fromField} ns={$row->$namespaceField} " .
 362                                         "dbk={$row->$titleField}";
 363                                 $destTitle = $this->getDestinationTitle( $ns, $name,
 364                                         $row->$namespaceField, $row->$titleField, $options );
 365                                 $this->totalLinks++;
 366                                 if ( !$destTitle ) {
 367                                         $this->output( "$table $logTitle *** INVALID\n" );
 368                                         continue;
 369                                 }
 370                                 $this->resolvableLinks++;
 371                                 if ( !$options['fix'] ) {
 372                                         $this->output( "$table $logTitle -> " .
 373                                                 $destTitle->getPrefixedDBkey() . " DRY RUN\n" );
 374                                         continue;
 375                                 }
 376
 377                                 $this->db->update( $table,
 378                                         // SET
 379                                         [
 380                                                 $namespaceField => $destTitle->getNamespace(),
 381                                                 $titleField => $destTitle->getDBkey()
 382                                         ],
 383                                         // WHERE
 384                                         [
 385                                                 $namespaceField => 0,
 386                                                 $titleField => $row->$titleField,
 387                                                 $fromField => $row->$fromField
 388                                         ],
 389                                         __METHOD__,
 390                                         [ 'IGNORE' ]
 391                                 );
 392                                 $this->output( "$table $logTitle -> " .
 393                                         $destTitle->getPrefixedDBkey() . "\n" );
 394                         }
 395                         $encLastTitle = $this->db->addQuotes( $row->$titleField );
 396                         $encLastFrom = $this->db->addQuotes( $row->$fromField );
 397
 398                         $batchConds = [
 399                                 "$titleField > $encLastTitle " .
 400                                 "OR ($titleField = $encLastTitle AND $fromField > $encLastFrom)" ];
 401
 402                         wfWaitForSlaves();
 403                 }
 404         }
 405
 406         /**
 407          * Move the given pseudo-namespace, either replacing the colon with a hyphen
 408          * (useful for pseudo-namespaces that conflict with interwiki links) or move
 409          * them to another namespace if specified.
 410          * @param array $options Associative array of validated command-line options
 411          * @return bool
 412          */
 413         private function checkPrefix( $options ) {
 414                 $prefix = $options['source-pseudo-namespace'];
 415                 $ns = $options['dest-namespace'];
 416                 $this->output( "Checking prefix \"$prefix\" vs namespace $ns\n" );
 417
 418                 return $this->checkNamespace( $ns, $prefix, $options );
 419         }
 420
 421         /**
 422          * Find pages in main and talk namespaces that have a prefix of the new
 423          * namespace so we know titles that will need migrating
 424          *
 425          * @param int $ns Destination namespace id
 426          * @param string $name Prefix that is being made a namespace
 427          * @param array $options Associative array of validated command-line options
 428          *
 429          * @return ResultWrapper
 430          */
 431         private function getTargetList( $ns, $name, $options ) {
 432                 if ( $options['move-talk'] && MWNamespace::isSubject( $ns ) ) {
 433                         $checkNamespaces = [ NS_MAIN, NS_TALK ];
 434                 } else {
 435                         $checkNamespaces = NS_MAIN;
 436                 }
 437
 438                 return $this->db->select( 'page',
 439                         [
 440                                 'page_id',
 441                                 'page_title',
 442                                 'page_namespace',
 443                         ],
 444                         [
 445                                 'page_namespace' => $checkNamespaces,
 446                                 'page_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 447                         ],
 448                         __METHOD__
 449                 );
 450         }
 451
 452         /**
 453          * Get the preferred destination title for a given target page.
 454          * @param int $ns The destination namespace ID
 455          * @param string $name The conflicting prefix
 456          * @param int $sourceNs The source namespace
 457          * @param int $sourceDbk The source DB key (i.e. page_title)
 458          * @param array $options Associative array of validated command-line options
 459          * @return Title|false
 460          */
 461         private function getDestinationTitle( $ns, $name, $sourceNs, $sourceDbk, $options ) {
 462                 $dbk = substr( $sourceDbk, strlen( "$name:" ) );
 463                 if ( $ns == 0 ) {
 464                         // An interwiki; try an alternate encoding with '-' for ':'
 465                         $dbk = "$name-" . $dbk;
 466                 }
 467                 $destNS = $ns;
 468                 if ( $sourceNs == NS_TALK && MWNamespace::isSubject( $ns ) ) {
 469                         // This is an associated talk page moved with the --move-talk feature.
 470                         $destNS = MWNamespace::getTalk( $destNS );
 471                 }
 472                 $newTitle = Title::makeTitleSafe( $destNS, $dbk );
 473                 if ( !$newTitle || !$newTitle->canExist() ) {
 474                         return false;
 475                 }
 476                 return $newTitle;
 477         }
 478
 479         /**
 480          * Get an alternative title to move a page to. This is used if the
 481          * preferred destination title already exists.
 482          *
 483          * @param LinkTarget $linkTarget
 484          * @param array $options Associative array of validated command-line options
 485          * @return Title|bool
 486          */
 487         private function getAlternateTitle( LinkTarget $linkTarget, $options ) {
 488                 $prefix = $options['add-prefix'];
 489                 $suffix = $options['add-suffix'];
 490                 if ( $prefix == '' && $suffix == '' ) {
 491                         return false;
 492                 }
 493                 while ( true ) {
 494                         $dbk = $prefix . $linkTarget->getDBkey() . $suffix;
 495                         $title = Title::makeTitleSafe( $linkTarget->getNamespace(), $dbk );
 496                         if ( !$title ) {
 497                                 return false;
 498                         }
 499                         if ( !$title->exists() ) {
 500                                 return $title;
 501                         }
 502                 }
 503         }
 504
 505         /**
 506          * Move a page
 507          *
 508          * @param integer $id The page_id
 509          * @param LinkTarget $newLinkTarget The new title link target
 510          * @return bool
 511          */
 512         private function movePage( $id, LinkTarget $newLinkTarget ) {
 513                 $this->db->update( 'page',
 514                         [
 515                                 "page_namespace" => $newLinkTarget->getNamespace(),
 516                                 "page_title" => $newLinkTarget->getDBkey(),
 517                         ],
 518                         [
 519                                 "page_id" => $id,
 520                         ],
 521                         __METHOD__ );
 522
 523                 // Update *_from_namespace in links tables
 524                 $fromNamespaceTables = [
 525                         [ 'pagelinks', 'pl' ],
 526                         [ 'templatelinks', 'tl' ],
 527                         [ 'imagelinks', 'il' ] ];
 528                 foreach ( $fromNamespaceTables as $tableInfo ) {
 529                         list( $table, $fieldPrefix ) = $tableInfo;
 530                         $this->db->update( $table,
 531                                 // SET
 532                                 [ "{$fieldPrefix}_from_namespace" => $newLinkTarget->getNamespace() ],
 533                                 // WHERE
 534                                 [ "{$fieldPrefix}_from" => $id ],
 535                                 __METHOD__ );
 536                 }
 537
 538                 return true;
 539         }
 540
 541         /**
 542          * Determine if we can merge a page.
 543          * We check if an inaccessible revision would become the latest and
 544          * deny the merge if so -- it's theoretically possible to update the
 545          * latest revision, but opens a can of worms -- search engine updates,
 546          * recentchanges review, etc.
 547          *
 548          * @param integer $id The page_id
 549          * @param LinkTarget $linkTarget The new link target
 550          * @param string $logStatus This is set to the log status message on failure
 551          * @return bool
 552          */
 553         private function canMerge( $id, LinkTarget $linkTarget, &$logStatus ) {
 554                 $latestDest = Revision::newFromTitle( $linkTarget, 0, Revision::READ_LATEST );
 555                 $latestSource = Revision::newFromPageId( $id, 0, Revision::READ_LATEST );
 556                 if ( $latestSource->getTimestamp() > $latestDest->getTimestamp() ) {
 557                         $logStatus = 'cannot merge since source is later';
 558                         return false;
 559                 } else {
 560                         return true;
 561                 }
 562         }
 563
 564         /**
 565          * Merge page histories
 566          *
 567          * @param stdClass $row Page row
 568          * @param Title $newTitle The new title
 569          * @return bool
 570          */
 571         private function mergePage( $row, Title $newTitle ) {
 572                 $id = $row->page_id;
 573
 574                 // Construct the WikiPage object we will need later, while the
 575                 // page_id still exists. Note that this cannot use makeTitleSafe(),
 576                 // we are deliberately constructing an invalid title.
 577                 $sourceTitle = Title::makeTitle( $row->page_namespace, $row->page_title );
 578                 $sourceTitle->resetArticleID( $id );
 579                 $wikiPage = new WikiPage( $sourceTitle );
 580                 $wikiPage->loadPageData( 'fromdbmaster' );
 581
 582                 $destId = $newTitle->getArticleID();
 583                 $this->beginTransaction( $this->db, __METHOD__ );
 584                 $this->db->update( 'revision',
 585                         // SET
 586                         [ 'rev_page' => $destId ],
 587                         // WHERE
 588                         [ 'rev_page' => $id ],
 589                         __METHOD__ );
 590
 591                 $this->db->delete( 'page', [ 'page_id' => $id ], __METHOD__ );
 592
 593                 $this->commitTransaction( $this->db, __METHOD__ );
 594
 595                 /* Call LinksDeletionUpdate to delete outgoing links from the old title,
 596                  * and update category counts.
 597                  *
 598                  * Calling external code with a fake broken Title is a fairly dubious
 599                  * idea. It's necessary because it's quite a lot of code to duplicate,
 600                  * but that also makes it fragile since it would be easy for someone to
 601                  * accidentally introduce an assumption of title validity to the code we
 602                  * are calling.
 603                  */
 604                 DeferredUpdates::addUpdate( new LinksDeletionUpdate( $wikiPage ) );
 605                 DeferredUpdates::doUpdates();
 606
 607                 return true;
 608         }
 609 }
 610
 611 $maintClass = NamespaceDupes::class;
 612 require_once RUN_MAINTENANCE_IF_MAIN;