maintenance/deleteArchivedFiles.php

   1 <?php
   2
   3 /**
   4  * Delete archived (non-current) files from the database
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @ingroup Maintenance
  22  * @author Aaron Schulz
  23  * Based on deleteOldRevisions.php by Rob Church
  24  */
  25
  26 require_once( "Maintenance.php" );
  27
  28 class DeleteArchivedFiles extends Maintenance {
  29         public function __construct() {
  30                 parent::__construct();
  31                 $this->mDescription = "Deletes all archived images.";
  32                 $this->addOption( 'delete', 'Perform the deletion' );
  33         }
  34
  35         /**
  36          * @todo @fixme FSTransaction/FileStore crap needs removing. Does
  37          * not work on trunk
  38          */
  39         public function execute() {
  40                 if( !$this->hasOption('delete') ) {
  41                         $this->output( "Use --delete to actually confirm this script\n" );
  42                         return;
  43                 }
  44                 # Data should come off the master, wrapped in a transaction
  45                 $dbw = wfGetDB( DB_MASTER );
  46                 $dbw->begin();
  47                 $tbl_arch = $dbw->tableName( 'filearchive' );
  48                 $repo = RepoGroup::singleton()->getLocalRepo();
  49                 # Get "active" revisions from the filearchive table
  50                 $this->output( "Searching for and deleting archived files...\n" );
  51                 $res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key FROM $tbl_arch" );
  52                 $count = 0;
  53                 while( $row = $dbw->fetchObject( $res ) ) {
  54                         $key = $row->fa_storage_key;
  55                         $group = $row->fa_storage_group;
  56                         $id = $row->fa_id;
  57                         $path = $repo->getZonePath( 'deleted' ).'/'.$repo->getDeletedHashPath($key).$key;
  58                         $sha1 = substr( $key, 0, strcspn( $key, '.' ) );
  59                         // Check if the file is used anywhere...
  60                         $inuse = $dbw->selectField( 'oldimage', '1',
  61                                 array( 'oi_sha1' => $sha1,
  62                                 'oi_deleted & '.File::DELETED_FILE => File::DELETED_FILE ),
  63                                 __METHOD__,
  64                                 array( 'FOR UPDATE' )
  65                         );
  66                         if ( $path && file_exists($path) && !$inuse ) {
  67                                 unlink($path); // delete
  68                                 $count++;
  69                                 $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
  70                         } else {
  71                                 $this->output( "Notice - file '$key' not found in group '$group'\n" );
  72                         }
  73                 }
  74                 $dbw->commit();
  75                 $this->output( "Done! [$count file(s)]\n" );
  76         }
  77 }
  78
  79 $maintClass = "DeleteArchivedFiles";
  80 require_once( DO_MAINTENANCE );