maintenance/deleteArchivedFiles.inc

   1 <?php
   2
   3 /**
   4  * Support functions for the deleteArchivedFiles script
   5  *
   6  * @file
   7  * @ingroup Maintenance
   8  * @author Aaron Schulz
   9  */
  10
  11 require_once( "$IP/includes/filerepo/File.php" );
  12
  13 function DeleteArchivedFiles( $delete = false ) {
  14         # Data should come off the master, wrapped in a transaction
  15         $dbw = wfGetDB( DB_MASTER );
  16         $dbw->begin();
  17         $tbl_arch = $dbw->tableName( 'filearchive' );
  18         $repo = RepoGroup::singleton()->getLocalRepo();
  19         # Get "active" revisions from the filearchive table
  20         echo( "Searching for and deleting archived files...\n" );
  21         $res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key FROM $tbl_arch" );
  22         $count = 0;
  23         while( $row = $dbw->fetchObject( $res ) ) {
  24                 $key = $row->fa_storage_key;
  25                 $group = $row->fa_storage_group;
  26                 $id = $row->fa_id;
  27                 $path = $repo->getZonePath( 'deleted' ).'/'.$repo->getDeletedHashPath($key).$key;
  28                 $sha1 = substr( $key, 0, strcspn( $key, '.' ) );
  29                 // Check if the file is used anywhere...
  30                 $inuse = $dbw->selectField( 'oldimage', '1',
  31                         array( 'oi_sha1' => $sha1,
  32                         'oi_deleted & '.File::DELETED_FILE => File::DELETED_FILE ),
  33                         __METHOD__,
  34                         array( 'FOR UPDATE' )
  35                 );
  36                 if ( $path && file_exists($path) && !$inuse ) {
  37                         unlink($path); // delete
  38                         $count++;
  39                         $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
  40                 } else {
  41                         echo( "Notice - file '$key' not found in group '$group'\n" );
  42                 }
  43         }
  44         $dbw->commit();
  45         echo( "Done! [$count file(s)]\n" );
  46 }