103 lines
3.3 KiB
PHP
103 lines
3.3 KiB
PHP
<?php
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/**
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* Delete old (non-current) revisions from the database
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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* @author Rob Church <robchur@gmail.com>
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*/
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Maintenance script that deletes old (non-current) revisions from the database.
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*
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* @ingroup Maintenance
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*/
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class DeleteOldRevisions extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Delete old (non-current) revisions from the database' );
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$this->addOption( 'delete', 'Actually perform the deletion' );
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$this->addOption( 'page_id', 'List of page ids to work on', false );
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}
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public function execute() {
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$this->output( "Delete old revisions\n\n" );
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$this->doDelete( $this->hasOption( 'delete' ), $this->mArgs );
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}
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private function doDelete( $delete = false, $args = [] ) {
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# Data should come off the master, wrapped in a transaction
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$dbw = $this->getDB( DB_PRIMARY );
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$this->beginTransaction( $dbw, __METHOD__ );
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$pageConds = [];
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$revConds = [];
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# If a list of page_ids was provided, limit results to that set of page_ids
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if ( count( $args ) > 0 ) {
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$pageConds['page_id'] = $args;
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$revConds['rev_page'] = $args;
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$this->output( "Limiting to page IDs " . implode( ',', $args ) . "\n" );
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}
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# Get "active" revisions from the page table
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$this->output( "Searching for active revisions..." );
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$res = $dbw->select( 'page', 'page_latest', $pageConds, __METHOD__ );
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$latestRevs = [];
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foreach ( $res as $row ) {
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$latestRevs[] = $row->page_latest;
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}
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$this->output( "done.\n" );
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# Get all revisions that aren't in this set
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$this->output( "Searching for inactive revisions..." );
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if ( count( $latestRevs ) > 0 ) {
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$revConds[] = 'rev_id NOT IN (' . $dbw->makeList( $latestRevs ) . ')';
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}
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$res = $dbw->select( 'revision', 'rev_id', $revConds, __METHOD__ );
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$oldRevs = [];
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foreach ( $res as $row ) {
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$oldRevs[] = $row->rev_id;
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}
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$this->output( "done.\n" );
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# Inform the user of what we're going to do
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$count = count( $oldRevs );
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$this->output( "$count old revisions found.\n" );
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# Delete as appropriate
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if ( $delete && $count ) {
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$this->output( "Deleting..." );
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$dbw->delete( 'revision', [ 'rev_id' => $oldRevs ], __METHOD__ );
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$dbw->delete( 'ip_changes', [ 'ipc_rev_id' => $oldRevs ], __METHOD__ );
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$this->output( "done.\n" );
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}
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# Purge redundant text records
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$this->commitTransaction( $dbw, __METHOD__ );
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if ( $delete ) {
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$this->purgeRedundantText( true );
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}
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}
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}
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$maintClass = DeleteOldRevisions::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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