MediaWiki 1.30.2

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

diff --git a/maintenance/findMissingFiles.php b/maintenance/findMissingFiles.php
new file mode 100644 (file)
index 0000000..4ce7ca6
--- /dev/null
+++ b/maintenance/findMissingFiles.php
@@ -0,0 +1,118 @@
+<?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
+ *
+ * @file
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+class FindMissingFiles extends Maintenance {
+       function __construct() {
+               parent::__construct();
+
+               $this->addDescription( 'Find registered files with no corresponding file.' );
+               $this->addOption( 'start', 'Start after this file name', false, true );
+               $this->addOption( 'mtimeafter', 'Only include files changed since this time', false, true );
+               $this->addOption( 'mtimebefore', 'Only includes files changed before this time', false, true );
+               $this->setBatchSize( 300 );
+       }
+
+       function execute() {
+               $lastName = $this->getOption( 'start', '' );
+
+               $repo = RepoGroup::singleton()->getLocalRepo();
+               $dbr = $repo->getReplicaDB();
+               $be = $repo->getBackend();
+
+               $mtime1 = $dbr->timestampOrNull( $this->getOption( 'mtimeafter', null ) );
+               $mtime2 = $dbr->timestampOrNull( $this->getOption( 'mtimebefore', null ) );
+
+               $joinTables = [];
+               $joinConds = [];
+               if ( $mtime1 || $mtime2 ) {
+                       $joinTables[] = 'page';
+                       $joinConds['page'] = [ 'INNER JOIN',
+                               [ 'page_title = img_name', 'page_namespace' => NS_FILE ] ];
+                       $joinTables[] = 'logging';
+                       $on = [ 'log_page = page_id', 'log_type' => [ 'upload', 'move', 'delete' ] ];
+                       if ( $mtime1 ) {
+                               $on[] = "log_timestamp > {$dbr->addQuotes($mtime1)}";
+                       }
+                       if ( $mtime2 ) {
+                               $on[] = "log_timestamp < {$dbr->addQuotes($mtime2)}";
+                       }
+                       $joinConds['logging'] = [ 'INNER JOIN', $on ];
+               }
+
+               do {
+                       $res = $dbr->select(
+                               array_merge( [ 'image' ], $joinTables ),
+                               [ 'name' => 'img_name' ],
+                               [ "img_name > " . $dbr->addQuotes( $lastName ) ],
+                               __METHOD__,
+                               // DISTINCT causes a pointless filesort
+                               [ 'ORDER BY' => 'name', 'GROUP BY' => 'name',
+                                       'LIMIT' => $this->mBatchSize ],
+                               $joinConds
+                       );
+
+                       // Check if any of these files are missing...
+                       $pathsByName = [];
+                       foreach ( $res as $row ) {
+                               $file = $repo->newFile( $row->name );
+                               $pathsByName[$row->name] = $file->getPath();
+                               $lastName = $row->name;
+                       }
+                       $be->preloadFileStat( [ 'srcs' => $pathsByName ] );
+                       foreach ( $pathsByName as $path ) {
+                               if ( $be->fileExists( [ 'src' => $path ] ) === false ) {
+                                       $this->output( "$path\n" );
+                               }
+                       }
+
+                       // Find all missing old versions of any of the files in this batch...
+                       if ( count( $pathsByName ) ) {
+                               $ores = $dbr->select( 'oldimage',
+                                       [ 'oi_name', 'oi_archive_name' ],
+                                       [ 'oi_name' => array_keys( $pathsByName ) ],
+                                       __METHOD__
+                               );
+
+                               $checkPaths = [];
+                               foreach ( $ores as $row ) {
+                                       if ( !strlen( $row->oi_archive_name ) ) {
+                                               continue; // broken row
+                                       }
+                                       $file = $repo->newFromArchiveName( $row->oi_name, $row->oi_archive_name );
+                                       $checkPaths[] = $file->getPath();
+                               }
+
+                               foreach ( array_chunk( $checkPaths, $this->mBatchSize ) as $paths ) {
+                                       $be->preloadFileStat( [ 'srcs' => $paths ] );
+                                       foreach ( $paths as $path ) {
+                                               if ( $be->fileExists( [ 'src' => $path ] ) === false ) {
+                                                       $this->output( "$path\n" );
+                                               }
+                                       }
+                               }
+                       }
+               } while ( $res->numRows() >= $this->mBatchSize );
+       }
+}
+
+$maintClass = 'FindMissingFiles';
+require_once RUN_MAINTENANCE_IF_MAIN;