MaxSem has uploaded a new change for review. ( https://gerrit.wikimedia.org/r/371587 )
Change subject: Add deleteWiki.php ...................................................................... Add deleteWiki.php Maintains database integrity to remove references to a wiki being deleted from various global databases. Change-Id: I2dce175d5f9a357b5b9de2bfc519e5f759dfdce7 --- A deleteWiki.php 1 file changed, 99 insertions(+), 0 deletions(-) git pull ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/WikimediaMaintenance refs/changes/87/371587/1 diff --git a/deleteWiki.php b/deleteWiki.php new file mode 100644 index 0000000..d1c11aa --- /dev/null +++ b/deleteWiki.php @@ -0,0 +1,99 @@ +<?php +/** + * Cleanup references to a deleted wiki. Assumes MySQL because it's written for WMF usage. + * + * 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 + * @ingroup Wikimedia + */ + +use MediaWiki\MediaWikiServices; + +require_once __DIR__ . '/WikimediaMaintenance.php'; + +class DeleteWiki extends Maintenance { + public function __construct() { + parent::__construct(); + $this->addDescription( 'Cleans up databases from references to a deleted wiki, but does ' + . 'not delete anything from the wiki itself.' + ); + + $this->addArg( 'wiki', 'Wiki being deleted', true ); + $this->setBatchSize( 500 ); + } + + /** + * Nuke all the datas! + */ + public function execute() { + $wiki = $this->getArg( 0 ); + + $this->output( "ATTENTION: All references to $wiki are going to be irreversibly DELETED! " + . "Press Ctrl+C to abort.\n" + ); + if ( !$this->isQuiet() ) { + wfCountDown( 10 ); + } + + $this->output( "Cleaning up global image links...\n" ); + $this->cleanupWikiDb( 'commonswiki', "DELETE FROM globalimagelinks WHERE gil_wiki='$wiki'" ); + + $this->output( "Cleaning up CentralAuth localnames...\n" ); + $this->cleanupWikiDb( 'centralauth', "DELETE FROM localnames WHERE ln_wiki='$wiki'" ); + + $this->output( "Cleaning up CentralAuth localuser...\n" ); + $this->cleanupWikiDb( 'centralauth', "DELETE FROM localuser WHERE lu_wiki='$wiki'" ); + + $this->output( "Cleaning up CentralAuth renameuser_status...\n" ); + $this->cleanupWikiDb( 'centralauth', "DELETE FROM renameuser_status WHERE ru_wiki='$wiki'" ); + + // @TODO: wikiset + + $this->output( "Cleaning up CentralAuth renameuser_queue...\n" ); + $this->cleanupWikiDb( 'centralauth', "DELETE FROM renameuser_queue WHERE rq_wiki='$wiki'" ); + + $this->output( "Cleaning up CentralAuth users_to_rename...\n" ); + $this->cleanupWikiDb( 'centralauth', "DELETE FROM users_to_rename WHERE utr_wiki='$wiki'" ); + } + + /** + * Perform cleanup of a wiki + * + * @param string $wiki Wiki to operate on (NOT the wiki being deleted!) + * @param string $query Query to run in batches + */ + private function cleanupWikiDb( $wiki, $query ) { + $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory(); + $lb = $lbFactory->getMainLB( $wiki ); + $dbw = $lb->getConnection( DB_MASTER ); + + $query .= " LIMIT {$this->mBatchSize}"; + $count = 0; + do { + $dbw->query( $query, __METHOD__ ); + $lbFactory->waitForReplication( [ 'wiki' => $wiki ] ); + $count += $dbw->affectedRows(); + $this->output( " $count\n" ); + } while ( $dbw->affectedRows() >= $this->mBatchSize ); + + $lb->reuseConnection( $dbw ); + } +} + +$maintClass = 'DeleteWiki'; +require_once RUN_MAINTENANCE_IF_MAIN; -- To view, visit https://gerrit.wikimedia.org/r/371587 To unsubscribe, visit https://gerrit.wikimedia.org/r/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I2dce175d5f9a357b5b9de2bfc519e5f759dfdce7 Gerrit-PatchSet: 1 Gerrit-Project: mediawiki/extensions/WikimediaMaintenance Gerrit-Branch: master Gerrit-Owner: MaxSem <maxsem.w...@gmail.com> _______________________________________________ MediaWiki-commits mailing list MediaWiki-commits@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-commits
