MediaWiki 1.17.0

[autoinstallsdev/mediawiki.git] / maintenance / deleteArchivedFiles.inc

diff --git a/maintenance/deleteArchivedFiles.inc b/maintenance/deleteArchivedFiles.inc
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+++ b/maintenance/deleteArchivedFiles.inc
@@ -0,0 +1,62 @@
+<?php
+/**
+ * Core functions for deleteArchivedFiles.php
+ *
+ * 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
+ */
+
+class DeleteArchivedFilesImplementation {
+       static public function doDelete( $output, $force ) {
+               # Data should come off the master, wrapped in a transaction
+               $dbw = wfGetDB( DB_MASTER );
+               $dbw->begin();
+               $tbl_arch = $dbw->tableName( 'filearchive' );
+               $repo = RepoGroup::singleton()->getLocalRepo();
+               # Get "active" revisions from the filearchive table
+               $output->handleOutput( "Searching for and deleting archived files...\n" );
+               $res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key FROM $tbl_arch" );
+               $count = 0;
+               foreach ( $res as $row ) {
+                       $key = $row->fa_storage_key;
+                       $group = $row->fa_storage_group;
+                       $id = $row->fa_id;
+                       $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
+                       $sha1 = substr( $key, 0, strcspn( $key, '.' ) );
+                       // Check if the file is used anywhere...
+                       $inuse = $dbw->selectField( 'oldimage', '1',
+                               array( 'oi_sha1' => $sha1,
+                               'oi_deleted & ' . File::DELETED_FILE => File::DELETED_FILE ),
+                               __METHOD__,
+                               array( 'FOR UPDATE' )
+                       );
+                       if ( $path && file_exists( $path ) && !$inuse ) {
+                               unlink( $path ); // delete
+                               $count++;
+                               $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
+                       } else {
+                               $output->handleOutput( "Notice - file '$key' not found in group '$group'\n" );
+                               if ( $force ) {
+                                       $output->handleOutput( "Got --force, deleting DB entry\n" );
+                                       $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
+                               }
+                       }
+               }
+               $dbw->commit();
+               $output->handleOutput( "Done! [$count file(s)]\n" );
+       }
+}
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