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<?php
/**
* Periodic off-peak updating of the search index.
*
* Usage: php updateSearchIndex.php [-s START] [-e END] [-p POSFILE] [-l LOCKTIME] [-q]
* Where START is the starting timestamp
* END is the ending timestamp
* POSFILE is a file to load timestamps from and save them to, searchUpdate.WIKI_ID.pos by default
* LOCKTIME is how long the searchindex and revision tables will be locked for
* -q means quiet
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
*/
require_once( __DIR__ . '/Maintenance.php' );
/**
* Maintenance script for periodic off-peak updating of the search index.
*
* @ingroup Maintenance
*/
class UpdateSearchIndex extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Script for periodic off-peak updating of the search index";
$this->addOption( 's', 'starting timestamp', false, true );
$this->addOption( 'e', 'Ending timestamp', false, true );
$this->addOption( 'p', 'File for saving/loading timestamps, searchUpdate.WIKI_ID.pos by default', false, true );
$this->addOption( 'l', 'How long the searchindex and revision tables will be locked for', false, true );
}
public function getDbType() {
return Maintenance::DB_ADMIN;
}
public function execute() {
$posFile = $this->getOption( 'p', 'searchUpdate.' . wfWikiId() . '.pos' );
$end = $this->getOption( 'e', wfTimestampNow() );
if ( $this->hasOption( 's' ) ) {
$start = $this->getOption( 's' );
} elseif ( is_readable( 'searchUpdate.pos' ) ) {
# B/c to the old position file name which was hardcoded
# We can safely delete the file when we're done though.
$start = file_get_contents( 'searchUpdate.pos' );
unlink( 'searchUpdate.pos' );
} elseif( is_readable( $posFile ) ) {
$start = file_get_contents( $posFile );
} else {
$start = wfTimestamp( TS_MW, time() - 86400 );
}
$lockTime = $this->getOption( 'l', 20 );
$this->doUpdateSearchIndex( $start, $end, $lockTime );
if ( is_writable( dirname( realpath( $posFile ) ) ) ) {
$file = fopen( $posFile, 'w' );
if ( $file !== false ) {
fwrite( $file, $end );
fclose( $file );
} else {
$this->error( "*** Couldn't write to the $posFile!\n" );
}
} else {
$this->error( "*** Couldn't write to the $posFile!\n" );
}
}
private function doUpdateSearchIndex( $start, $end, $maxLockTime ) {
global $wgDisableSearchUpdate;
$wgDisableSearchUpdate = false;
$dbw = wfGetDB( DB_MASTER );
$recentchanges = $dbw->tableName( 'recentchanges' );
$this->output( "Updating searchindex between $start and $end\n" );
# Select entries from recentchanges which are on top and between the specified times
$start = $dbw->timestamp( $start );
$end = $dbw->timestamp( $end );
$page = $dbw->tableName( 'page' );
$sql = "SELECT rc_cur_id,rc_type,rc_moved_to_ns,rc_moved_to_title FROM $recentchanges
JOIN $page ON rc_cur_id=page_id AND rc_this_oldid=page_latest
WHERE rc_timestamp BETWEEN '$start' AND '$end'
";
$res = $dbw->query( $sql, __METHOD__ );
$this->updateSearchIndex( $maxLockTime, array( $this, 'searchIndexUpdateCallback' ), $dbw, $res );
$this->output( "Done\n" );
}
public function searchIndexUpdateCallback( $dbw, $row ) {
if ( $row->rc_type == RC_MOVE || $row->rc_type == RC_MOVE_OVER_REDIRECT ) {
# Rename searchindex entry
$titleObj = Title::makeTitle( $row->rc_moved_to_ns, $row->rc_moved_to_title );
$title = $titleObj->getPrefixedDBkey();
$this->output( "$title..." );
$u = new SearchUpdate( $row->rc_cur_id, $title, false );
$u->doUpdate();
$this->output( "\n" );
} elseif ( $row->rc_type !== RC_LOG ) {
$this->updateSearchIndexForPage( $dbw, $row->rc_cur_id );
}
}
}
$maintClass = "UpdateSearchIndex";
require_once( RUN_MAINTENANCE_IF_MAIN );
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