php/html/deleteArchivedFiles_8inc_source.html

00001 <?php
00029 class DeleteArchivedFilesImplementation {
00030         static public function doDelete( $output, $force ) {
00031                 # Data should come off the master, wrapped in a transaction
00032                 $dbw = wfGetDB( DB_MASTER );
00033                 $dbw->begin( __METHOD__ );
00034                 $tbl_arch = $dbw->tableName( 'filearchive' );
00035                 $repo = RepoGroup::singleton()->getLocalRepo();
00036                 # Get "active" revisions from the filearchive table
00037                 $output->handleOutput( "Searching for and deleting archived files...\n" );
00038                 $res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key FROM $tbl_arch" );
00039                 $count = 0;
00040                 foreach ( $res as $row ) {
00041                         $key = $row->fa_storage_key;
00042                         $group = $row->fa_storage_group;
00043                         $id = $row->fa_id;
00044                         $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
00045                         $sha1 = substr( $key, 0, strcspn( $key, '.' ) );
00046                         // Check if the file is used anywhere...
00047                         $inuse = $dbw->selectField( 'oldimage', '1',
00048                                 array( 'oi_sha1' => $sha1,
00049                                 'oi_deleted & ' . File::DELETED_FILE => File::DELETED_FILE ),
00050                                 __METHOD__,
00051                                 array( 'FOR UPDATE' )
00052                         );
00053                         if ( $path && $repo->fileExists( $path ) && !$inuse ) {
00054                                 if ( $repo->quickPurge( $path ) ) {
00055                                         $count++;
00056                                         $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
00057                                 } else {
00058                                         $output->handleOutput( "Unable to remove file $path, skipping\n" );
00059                                 }
00060                         } else {
00061                                 $output->handleOutput( "Notice - file '$key' not found in group '$group'\n" );
00062                                 if ( $force ) {
00063                                         $output->handleOutput( "Got --force, deleting DB entry\n" );
00064                                         $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
00065                                 }
00066                         }
00067                 }
00068                 $dbw->commit( __METHOD__ );
00069                 $output->handleOutput( "Done! [$count file(s)]\n" );
00070         }
00071 }