From 222b01f5169f1c7e69762e0e8904c24f78f71882 Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Wed, 28 Jul 2010 11:52:48 +0200
Subject: update to MediaWiki 1.16.0

---
 maintenance/deleteOldRevisions.php | 102 +++++++++++++++++++++++++++++++------
 1 file changed, 87 insertions(+), 15 deletions(-)

(limited to 'maintenance/deleteOldRevisions.php')

diff --git a/maintenance/deleteOldRevisions.php b/maintenance/deleteOldRevisions.php
index c283c607..1f4dc4c9 100644
--- a/maintenance/deleteOldRevisions.php
+++ b/maintenance/deleteOldRevisions.php
@@ -3,27 +3,99 @@
 /**
  * Delete old (non-current) revisions from the database
  *
- * @file
+ * 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
+ *
  * @ingroup Maintenance
  * @author Rob Church <robchur@gmail.com>
  */
 
-$options = array( 'delete', 'help' );
-require_once( 'commandLine.inc' );
-require_once( 'deleteOldRevisions.inc' );
+require_once( dirname(__FILE__) . '/Maintenance.php' );
 
-echo( "Delete Old Revisions\n\n" );
+class DeleteOldRevisions extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->mDescription = "Delete old (non-current) revisions from the database";
+		$this->addOption( 'delete', 'Actually perform the deletion' );
+		$this->addOption( 'page_id', 'List of page ids to work on', false );
+	}
+	
+	public function execute() {
+		$this->output( "Delete old revisions\n\n" );
+		$this->doDelete( $this->hasOption( 'delete' ), $this->mArgs );
+	}
+	
+	function doDelete( $delete = false, $args = array() ) {
 
-if( @$options['help'] ) {
-	ShowUsage();
-} else {
-	DeleteOldRevisions( @$options['delete'], $args );
+		# Data should come off the master, wrapped in a transaction
+		$dbw = wfGetDB( DB_MASTER );
+		$dbw->begin();
+	
+		$tbl_pag = $dbw->tableName( 'page' );
+		$tbl_rev = $dbw->tableName( 'revision' );
+	
+		$pageIdClause = '';
+		$revPageClause = '';
+	
+		# If a list of page_ids was provided, limit results to that set of page_ids
+		if ( sizeof( $args ) > 0 ) {
+			$pageIdList = implode( ',', $args );
+			$pageIdClause = " WHERE page_id IN ({$pageIdList})";
+			$revPageClause = " AND rev_page IN ({$pageIdList})";
+			$this->output( "Limiting to {$tbl_pag}.page_id IN ({$pageIdList})\n" );
+		}
+	
+		# Get "active" revisions from the page table
+		$this->output( "Searching for active revisions..." );
+		$res = $dbw->query( "SELECT page_latest FROM $tbl_pag{$pageIdClause}" );
+		foreach( $res as $row ) {
+			$cur[] = $row->page_latest;
+		}
+		$this->output( "done.\n" );
+	
+		# Get all revisions that aren't in this set
+		$old = array();
+		$this->output( "Searching for inactive revisions..." );
+		$set = implode( ', ', $cur );
+		$res = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_id NOT IN ( $set ){$revPageClause}" );
+		foreach( $res as $row ) {
+			$old[] = $row->rev_id;
+		}
+		$this->output( "done.\n" );
+	
+		# Inform the user of what we're going to do
+		$count = count( $old );
+		$this->output( "$count old revisions found.\n" );
+	
+		# Delete as appropriate
+		if( $delete && $count ) {
+			$this->output( "Deleting..." );
+			$set = implode( ', ', $old );
+			$dbw->query( "DELETE FROM $tbl_rev WHERE rev_id IN ( $set )" );
+			$this->output( "done.\n" );
+		}
+	
+		# This bit's done
+		# Purge redundant text records
+		$dbw->commit();
+		if( $delete ) {
+			$this->purgeRedundantText( true );
+		}
+	}
 }
 
-function ShowUsage() {
-	echo( "Deletes non-current revisions from the database.\n\n" );
-	echo( "Usage: php deleteOldRevisions.php [--delete|--help] [<page_id> ...]\n\n" );
-	echo( "delete : Performs the deletion\n" );
-	echo( "  help : Show this usage information\n" );
-}
+$maintClass = "DeleteOldRevisions";
+require_once( DO_MAINTENANCE );
 
-- 
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