maintenance/updateSearchIndex.php

   1 <?php
   2 /**
   3  * Script for periodic off-peak updating of the search index
   4  *
   5  * Usage: php updateSearchIndex.php [-s START] [-e END] [-p POSFILE] [-l LOCKTIME] [-q]
   6  * Where START is the starting timestamp
   7  * END is the ending timestamp
   8  * POSFILE is a file to load timestamps from and save them to, searchUpdate.WIKI_ID.pos by default
   9  * LOCKTIME is how long the searchindex and revision tables will be locked for
  10  * -q means quiet
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  25  * http://www.gnu.org/copyleft/gpl.html
  26  *
  27  * @file
  28  * @ingroup Maintenance
  29  */
  30
  31 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  32
  33 class UpdateSearchIndex extends Maintenance {
  34
  35         public function __construct() {
  36                 parent::__construct();
  37                 $this->mDescription = "Script for periodic off-peak updating of the search index";
  38                 $this->addOption( 's', 'starting timestamp', false, true );
  39                 $this->addOption( 'e', 'Ending timestamp', false, true );
  40                 $this->addOption( 'p', 'File for saving/loading timestamps, searchUpdate.WIKI_ID.pos by default', false, true );
  41                 $this->addOption( 'l', 'How long the searchindex and revision tables will be locked for', false, true );
  42         }
  43
  44         public function getDbType() {
  45                 return Maintenance::DB_ADMIN;
  46         }
  47
  48         public function execute() {
  49                 $posFile = $this->getOption( 'p', 'searchUpdate.' . wfWikiId() . '.pos' );
  50                 $end = $this->getOption( 'e', wfTimestampNow() );
  51                 if ( $this->hasOption( 's' ) ) {
  52                         $start = $this->getOption( 's' );
  53                 } elseif ( is_readable( 'searchUpdate.pos' ) ) {
  54                         # B/c to the old position file name which was hardcoded
  55                         # We can safely delete the file when we're done though.
  56                         $start = file_get_contents( 'searchUpdate.pos' );
  57                         unlink( 'searchUpdate.pos' );
  58                 } else {
  59                         $start = @file_get_contents( $posFile );
  60                         if ( !$start ) {
  61                                 $start = wfTimestamp( TS_MW, time() - 86400 );
  62                         }
  63                 }
  64                 $lockTime = $this->getOption( 'l', 20 );
  65
  66                 $this->doUpdateSearchIndex( $start, $end, $lockTime );
  67                 if ( is_writable( dirname( realpath( $posFile ) ) ) ) {
  68                         $file = fopen( $posFile, 'w' );
  69                         if ( $file !== false ) {
  70                                 fwrite( $file, $end );
  71                                 fclose( $file );
  72                         } else {
  73                                 $this->output( "*** Couldn't write to the $posFile!\n" );
  74                         }
  75                 } else {
  76                         $this->output( "*** Couldn't write to the $posFile!\n" );
  77                 }
  78         }
  79
  80         private function doUpdateSearchIndex( $start, $end, $maxLockTime ) {
  81                 global $wgDisableSearchUpdate;
  82
  83                 $wgDisableSearchUpdate = false;
  84
  85                 $dbw = wfGetDB( DB_MASTER );
  86                 $recentchanges = $dbw->tableName( 'recentchanges' );
  87
  88                 $this->output( "Updating searchindex between $start and $end\n" );
  89
  90                 # Select entries from recentchanges which are on top and between the specified times
  91                 $start = $dbw->timestamp( $start );
  92                 $end = $dbw->timestamp( $end );
  93
  94                 $page = $dbw->tableName( 'page' );
  95                 $sql = "SELECT rc_cur_id,rc_type,rc_moved_to_ns,rc_moved_to_title FROM $recentchanges
  96                   JOIN $page ON rc_cur_id=page_id AND rc_this_oldid=page_latest
  97                   WHERE rc_timestamp BETWEEN '$start' AND '$end'
  98                   ";
  99                 $res = $dbw->query( $sql, __METHOD__ );
 100
 101                 $this->updateSearchIndex( $maxLockTime, array( $this, 'searchIndexUpdateCallback' ), $dbw, $res );
 102
 103                 $this->output( "Done\n" );
 104         }
 105
 106         public function searchIndexUpdateCallback( $dbw, $row ) {
 107                 if ( $row->rc_type == RC_MOVE || $row->rc_type == RC_MOVE_OVER_REDIRECT ) {
 108                         # Rename searchindex entry
 109                         $titleObj = Title::makeTitle( $row->rc_moved_to_ns, $row->rc_moved_to_title );
 110                         $title = $titleObj->getPrefixedDBkey();
 111                         $this->output( "$title..." );
 112                         $u = new SearchUpdate( $row->rc_cur_id, $title, false );
 113                         $u->doUpdate();
 114                         $this->output( "\n" );
 115                 } elseif ( $row->rc_type !== RC_LOG ) {
 116                         $this->updateSearchIndexForPage( $dbw, $row->rc_cur_id );
 117                 }
 118         }
 119 }
 120
 121 $maintClass = "UpdateSearchIndex";
 122 require_once( DO_MAINTENANCE );