MediaWiki 1.17.0

[autoinstallsdev/mediawiki.git] / maintenance / deleteOldRevisions.php

diff --git a/maintenance/deleteOldRevisions.php b/maintenance/deleteOldRevisions.php
index 9695a8c5b7ad163c4596ea250902506e3d1a2a21..ba76e9e9f84768acb7e3326e9668d1324e4c0f6e 100644 (file)
--- a/maintenance/deleteOldRevisions.php
+++ b/maintenance/deleteOldRevisions.php
@@ -3,28 +3,99 @@
 /**
  * Delete old (non-current) revisions from the database
  *
- * @package MediaWiki
- * @subpackage Maintenance
+ * 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 );
+       }
 
-if( @$options['help'] ) {
-       ShowUsage();
-} else {
-       DeleteOldRevisions( @$options['delete'] );
-}
+       public function execute() {
+               $this->output( "Delete old revisions\n\n" );
+               $this->doDelete( $this->hasOption( 'delete' ), $this->mArgs );
+       }
+
+       function doDelete( $delete = false, $args = array() ) {
+
+               # 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' );
 
-function ShowUsage() {
-       echo( "Deletes non-current revisions from the database.\n\n" );
-       echo( "Usage: php deleteOldRevisions.php [--delete|--help]\n\n" );
-       echo( "delete : Performs the deletion\n" );
-       echo( "  help : Show this usage information\n" );
+               $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 );
+               }
+       }
 }
 
-?>
\ No newline at end of file
+$maintClass = "DeleteOldRevisions";
+require_once( RUN_MAINTENANCE_IF_MAIN );
+