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<?php
/**
* Remove pages with only 1 revision from the MediaWiki namespace, without
* flooding recent changes, delete logs, etc.
* Irreversible (can't use standard undelete) and does not update link tables
*
* This is mainly useful to run before maintenance/update.php when upgrading
* to 1.9, to prevent flooding recent changes/deletion logs. It's intended
* to be conservative, so it's possible that a few entries will be left for
* deletion by the upgrade script. It's also possible that it hasn't been
* tested thouroughly enough, and will delete something it shouldn't; so
* back up your DB if there's anything in the MediaWiki that is important to
* you.
*
* 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
* @author Steve Sanbeg
* based on nukePage by Rob Church
*/
require_once( __DIR__ . '/Maintenance.php' );
/**
* Maintenance script that removes pages with only one revision from the
* MediaWiki namespace.
*
* @ingroup Maintenance
*/
class NukeNS extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Remove pages with only 1 revision from any namespace";
$this->addOption( 'delete', "Actually delete the page" );
$this->addOption( 'ns', 'Namespace to delete from, default NS_MEDIAWIKI', false, true );
$this->addOption( 'all', 'Delete everything regardless of revision count' );
}
public function execute() {
$ns = $this->getOption( 'ns', NS_MEDIAWIKI );
$delete = $this->getOption( 'delete', false );
$all = $this->getOption( 'all', false );
$dbw = wfGetDB( DB_MASTER );
$dbw->begin( __METHOD__ );
$tbl_pag = $dbw->tableName( 'page' );
$tbl_rev = $dbw->tableName( 'revision' );
$res = $dbw->query( "SELECT page_title FROM $tbl_pag WHERE page_namespace = $ns" );
$n_deleted = 0;
foreach ( $res as $row ) {
// echo "$ns_name:".$row->page_title, "\n";
$title = Title::makeTitle( $ns, $row->page_title );
$id = $title->getArticleID();
// Get corresponding revisions
$res2 = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_page = $id" );
$revs = array();
foreach ( $res2 as $row2 ) {
$revs[] = $row2->rev_id;
}
$count = count( $revs );
// skip anything that looks modified (i.e. multiple revs)
if ( $all || $count == 1 ) {
# echo $title->getPrefixedText(), "\t", $count, "\n";
$this->output( "delete: " . $title->getPrefixedText() . "\n" );
// as much as I hate to cut & paste this, it's a little different, and
// I already have the id & revs
if ( $delete ) {
$dbw->query( "DELETE FROM $tbl_pag WHERE page_id = $id" );
$dbw->commit( __METHOD__ );
// Delete revisions as appropriate
$child = $this->runChild( 'NukePage', 'nukePage.php' );
$child->deleteRevisions( $revs );
$this->purgeRedundantText( true );
$n_deleted ++;
}
} else {
$this->output( "skip: " . $title->getPrefixedText() . "\n" );
}
}
$dbw->commit( __METHOD__ );
if ( $n_deleted > 0 ) {
# update statistics - better to decrement existing count, or just count
# the page table?
$pages = $dbw->selectField( 'site_stats', 'ss_total_pages' );
$pages -= $n_deleted;
$dbw->update(
'site_stats',
array( 'ss_total_pages' => $pages ),
array( 'ss_row_id' => 1 ),
__METHOD__
);
}
if ( !$delete ) {
$this->output( "To update the database, run the script with the --delete option.\n" );
}
}
}
$maintClass = "NukeNS";
require_once( RUN_MAINTENANCE_IF_MAIN );
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