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<?php
/**
* 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
*/
require_once __DIR__ . '/Maintenance.php';
/**
* Remove autopatrol logs in the logging table.
*
* @ingroup Maintenance
*/
class DeleteAutoPatrolLogs extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription( 'Remove autopatrol logs in the logging table' );
$this->addOption( 'dry-run', 'Print debug info instead of actually deleting' );
$this->addOption(
'check-old',
'Check old patrol logs (for deleting old format autopatrols).' .
'Note that this will not delete rows older than 2011 (MediaWiki 1.18).'
);
$this->addOption(
'before',
'Timestamp to delete only before that time, all MediaWiki timestamp formats are accepted',
false,
true
);
$this->addOption(
'from-id',
'First row (log id) to start updating from',
false,
true
);
$this->addOption(
'sleep',
'Sleep time (in seconds) between every batch',
false,
true
);
$this->setBatchSize( 1000 );
}
public function execute() {
$this->setBatchSize( $this->getOption( 'batch-size', $this->getBatchSize() ) );
$sleep = (int)$this->getOption( 'sleep', 10 );
$fromId = $this->getOption( 'from-id', null );
$this->countDown( 5 );
while ( true ) {
if ( $this->hasOption( 'check-old' ) ) {
$rowsData = $this->getRowsOld( $fromId );
// We reached end of the table
if ( !$rowsData ) {
break;
}
$rows = $rowsData['rows'];
$fromId = $rowsData['lastId'];
// There is nothing to delete in this batch
if ( !$rows ) {
continue;
}
} else {
$rows = $this->getRows( $fromId );
if ( !$rows ) {
break;
}
$fromId = end( $rows );
}
if ( $this->hasOption( 'dry-run' ) ) {
$this->output( 'These rows will get deleted: ' . implode( ', ', $rows ) . "\n" );
} else {
$this->deleteRows( $rows );
$this->output( 'Processed up to row id ' . end( $rows ) . "\n" );
}
if ( $sleep > 0 ) {
sleep( $sleep );
}
}
}
private function getRows( $fromId ) {
$dbr = MediaWiki\MediaWikiServices::getInstance()->getDBLoadBalancer()->getConnection(
DB_REPLICA
);
$before = $this->getOption( 'before', false );
$conds = [
'log_type' => 'patrol',
'log_action' => 'autopatrol',
];
if ( $fromId ) {
$conds[] = 'log_id > ' . $dbr->addQuotes( $fromId );
}
if ( $before ) {
$conds[] = 'log_timestamp < ' . $dbr->addQuotes( $dbr->timestamp( $before ) );
}
return $dbr->selectFieldValues(
'logging',
'log_id',
$conds,
__METHOD__,
[ 'LIMIT' => $this->getBatchSize() ]
);
}
private function getRowsOld( $fromId ) {
$dbr = MediaWiki\MediaWikiServices::getInstance()->getDBLoadBalancer()->getConnection(
DB_REPLICA
);
$batchSize = $this->getBatchSize();
$before = $this->getOption( 'before', false );
$conds = [
'log_type' => 'patrol',
'log_action' => 'patrol',
];
if ( $fromId ) {
$conds[] = 'log_id > ' . $dbr->addQuotes( $fromId );
}
if ( $before ) {
$conds[] = 'log_timestamp < ' . $dbr->addQuotes( $dbr->timestamp( $before ) );
}
$result = $dbr->select(
'logging',
[ 'log_id', 'log_params' ],
$conds,
__METHOD__,
[ 'LIMIT' => $batchSize ]
);
$last = null;
$autopatrols = [];
foreach ( $result as $row ) {
$last = $row->log_id;
Wikimedia\suppressWarnings();
$params = unserialize( $row->log_params );
Wikimedia\restoreWarnings();
// Skipping really old rows, before 2011
if ( !is_array( $params ) || !array_key_exists( '6::auto', $params ) ) {
continue;
}
$auto = $params['6::auto'];
if ( $auto ) {
$autopatrols[] = $row->log_id;
}
}
if ( $last === null ) {
return null;
}
return [ 'rows' => $autopatrols, 'lastId' => $last ];
}
private function deleteRows( array $rows ) {
$dbw = MediaWiki\MediaWikiServices::getInstance()->getDBLoadBalancer()->getConnection(
DB_MASTER
);
$dbw->delete(
'logging',
[ 'log_id' => $rows ],
__METHOD__
);
MediaWiki\MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->waitForReplication();
}
}
$maintClass = DeleteAutoPatrolLogs::class;
require_once RUN_MAINTENANCE_IF_MAIN;
|
