maintenance/dumpLinks.php

   1 <?php
   2 /**
   3  * Quick demo hack to generate a plaintext link dump,
   4  * per the proposed wiki link database standard:
   5  * http://www.usemod.com/cgi-bin/mb.pl?LinkDatabase
   6  *
   7  * Includes all (live and broken) intra-wiki links.
   8  * Does not include interwiki or URL links.
   9  * Dumps ASCII text to stdout; command-line.
  10  *
  11  * Copyright © 2005 Brooke Vibber <bvibber@wikimedia.org>
  12  * https://www.mediawiki.org/
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License along
  25  * with this program; if not, write to the Free Software Foundation, Inc.,
  26  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  27  * http://www.gnu.org/copyleft/gpl.html
  28  *
  29  * @file
  30  * @ingroup Maintenance
  31  */
  32
  33 // @codeCoverageIgnoreStart
  34 require_once __DIR__ . '/Maintenance.php';
  35 // @codeCoverageIgnoreEnd
  36
  37 use MediaWiki\Maintenance\Maintenance;
  38 use MediaWiki\Title\Title;
  39
  40 /**
  41  * Maintenance script that generates a plaintext link dump.
  42  *
  43  * @ingroup Maintenance
  44  */
  45 class DumpLinks extends Maintenance {
  46         public function __construct() {
  47                 parent::__construct();
  48                 $this->addDescription( 'Quick demo hack to generate a plaintext link dump' );
  49         }
  50
  51         public function execute() {
  52                 $dbr = $this->getReplicaDB();
  53                 $linksMigration = $this->getServiceContainer()->getLinksMigration();
  54                 $queryInfo = $linksMigration->getQueryInfo( 'pagelinks' );
  55                 $queryInfo['tables'] = array_diff( $queryInfo['tables'], [ 'pagelinks' ] );
  56                 [ $blNamespace, $blTitle ] = $linksMigration->getTitleFields( 'pagelinks' );
  57
  58                 $result = $dbr->newSelectQueryBuilder()
  59                         ->select( array_merge( [
  60                                 'page_id',
  61                                 'page_namespace',
  62                                 'page_title',
  63                         ], $queryInfo['fields'] ) )
  64                         ->from( 'page' )
  65                         ->join( 'pagelinks', null, [ 'page_id=pl_from' ] )
  66                         ->joinConds( $queryInfo['joins'] )
  67                         ->tables( $queryInfo['tables'] )
  68                         ->orderBy( 'page_id' )
  69                         ->caller( __METHOD__ )
  70                         ->fetchResultSet();
  71
  72                 $lastPage = null;
  73                 foreach ( $result as $row ) {
  74                         if ( $lastPage != $row->page_id ) {
  75                                 if ( $lastPage !== null ) {
  76                                         $this->output( "\n" );
  77                                 }
  78                                 $page = Title::makeTitle( $row->page_namespace, $row->page_title );
  79                                 $this->output( $page->getPrefixedURL() );
  80                                 $lastPage = $row->page_id;
  81                         }
  82                         $link = Title::makeTitle( $row->$blNamespace, $row->$blTitle );
  83                         $this->output( " " . $link->getPrefixedURL() );
  84                 }
  85                 if ( $lastPage !== null ) {
  86                         $this->output( "\n" );
  87                 }
  88         }
  89 }
  90
  91 // @codeCoverageIgnoreStart
  92 $maintClass = DumpLinks::class;
  93 require_once RUN_MAINTENANCE_IF_MAIN;
  94 // @codeCoverageIgnoreEnd