maintenance/rebuildImages.php

   1 <?php
   2 /**
   3  * Update image metadata records.
   4  *
   5  * Usage: php rebuildImages.php [--missing] [--dry-run]
   6  * Options:
   7  *   --missing  Crawl the uploads dir for images without records, and
   8  *              add them only.
   9  *
  10  * Copyright © 2005 Brion Vibber <brion@pobox.com>
  11  * http://www.mediawiki.org/
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  26  * http://www.gnu.org/copyleft/gpl.html
  27  *
  28  * @file
  29  * @author Brion Vibber <brion at pobox.com>
  30  * @ingroup Maintenance
  31  */
  32
  33 require_once( __DIR__ . '/Maintenance.php' );
  34
  35 /**
  36  * Maintenance script to update image metadata records.
  37  *
  38  * @ingroup Maintenance
  39  */
  40 class ImageBuilder extends Maintenance {
  41
  42         /**
  43          * @var DatabaseBase
  44          */
  45         protected $dbw;
  46
  47         function __construct() {
  48                 parent::__construct();
  49
  50                 global $wgUpdateCompatibleMetadata;
  51                 //make sure to update old, but compatible img_metadata fields.
  52                 $wgUpdateCompatibleMetadata = true;
  53
  54                 $this->mDescription = 'Script to update image metadata records';
  55
  56                 $this->addOption( 'missing', 'Check for files without associated database record' );
  57                 $this->addOption( 'dry-run', 'Only report, don\'t update the database' );
  58         }
  59
  60         public function execute() {
  61                 $this->dbw = wfGetDB( DB_MASTER );
  62                 $this->maxLag = 10; # if slaves are lagged more than 10 secs, wait
  63                 $this->dryrun = $this->hasOption( 'dry-run' );
  64                 if ( $this->dryrun ) {
  65                         $GLOBALS['wgReadOnly'] = 'Dry run mode, image upgrades are suppressed';
  66                 }
  67
  68                 if ( $this->hasOption( 'missing' ) ) {
  69                         $this->crawlMissing();
  70                 } else {
  71                         $this->build();
  72                 }
  73         }
  74
  75         /**
  76          * @return FileRepo
  77          */
  78         function getRepo() {
  79                 if ( !isset( $this->repo ) ) {
  80                         $this->repo = RepoGroup::singleton()->getLocalRepo();
  81                 }
  82                 return $this->repo;
  83         }
  84
  85         function build() {
  86                 $this->buildImage();
  87                 $this->buildOldImage();
  88         }
  89
  90         function init( $count, $table ) {
  91                 $this->processed = 0;
  92                 $this->updated = 0;
  93                 $this->count = $count;
  94                 $this->startTime = microtime( true );
  95                 $this->table = $table;
  96         }
  97
  98         function progress( $updated ) {
  99                 $this->updated += $updated;
 100                 $this->processed++;
 101                 if ( $this->processed % 100 != 0 ) {
 102                         return;
 103                 }
 104                 $portion = $this->processed / $this->count;
 105                 $updateRate = $this->updated / $this->processed;
 106
 107                 $now = microtime( true );
 108                 $delta = $now - $this->startTime;
 109                 $estimatedTotalTime = $delta / $portion;
 110                 $eta = $this->startTime + $estimatedTotalTime;
 111                 $rate = $this->processed / $delta;
 112
 113                 $this->output( sprintf( "%s: %6.2f%% done on %s; ETA %s [%d/%d] %.2f/sec <%.2f%% updated>\n",
 114                         wfTimestamp( TS_DB, intval( $now ) ),
 115                         $portion * 100.0,
 116                         $this->table,
 117                         wfTimestamp( TS_DB, intval( $eta ) ),
 118                         $this->processed,
 119                         $this->count,
 120                         $rate,
 121                         $updateRate * 100.0 ) );
 122                 flush();
 123         }
 124
 125         function buildTable( $table, $key, $callback ) {
 126                 $count = $this->dbw->selectField( $table, 'count(*)', '', __METHOD__ );
 127                 $this->init( $count, $table );
 128                 $this->output( "Processing $table...\n" );
 129
 130                 $result = wfGetDB( DB_SLAVE )->select( $table, '*', array(), __METHOD__ );
 131
 132                 foreach ( $result as $row ) {
 133                         $update = call_user_func( $callback, $row, null );
 134                         if ( $update ) {
 135                                 $this->progress( 1 );
 136                         } else {
 137                                 $this->progress( 0 );
 138                         }
 139                 }
 140                 $this->output( "Finished $table... $this->updated of $this->processed rows updated\n" );
 141         }
 142
 143         function buildImage() {
 144                 $callback = array( $this, 'imageCallback' );
 145                 $this->buildTable( 'image', 'img_name', $callback );
 146         }
 147
 148         function imageCallback( $row, $copy ) {
 149                 // Create a File object from the row
 150                 // This will also upgrade it
 151                 $file = $this->getRepo()->newFileFromRow( $row );
 152                 return $file->getUpgraded();
 153         }
 154
 155         function buildOldImage() {
 156                 $this->buildTable( 'oldimage', 'oi_archive_name', array( $this, 'oldimageCallback' ) );
 157         }
 158
 159         function oldimageCallback( $row, $copy ) {
 160                 // Create a File object from the row
 161                 // This will also upgrade it
 162                 if ( $row->oi_archive_name == '' ) {
 163                         $this->output( "Empty oi_archive_name for oi_name={$row->oi_name}\n" );
 164                         return false;
 165                 }
 166                 $file = $this->getRepo()->newFileFromRow( $row );
 167                 return $file->getUpgraded();
 168         }
 169
 170         function crawlMissing() {
 171                 $this->getRepo()->enumFiles( array( $this, 'checkMissingImage' ) );
 172         }
 173
 174         function checkMissingImage( $fullpath ) {
 175                 $filename = wfBaseName( $fullpath );
 176                 $row = $this->dbw->selectRow( 'image',
 177                         array( 'img_name' ),
 178                         array( 'img_name' => $filename ),
 179                         __METHOD__ );
 180
 181                 if ( !$row ) { // file not registered
 182                         $this->addMissingImage( $filename, $fullpath );
 183                 }
 184         }
 185
 186         function addMissingImage( $filename, $fullpath ) {
 187                 global $wgContLang;
 188
 189                 $timestamp = $this->dbw->timestamp( $this->getRepo()->getFileTimestamp( $fullpath ) );
 190
 191                 $altname = $wgContLang->checkTitleEncoding( $filename );
 192                 if ( $altname != $filename ) {
 193                         if ( $this->dryrun ) {
 194                                 $filename = $altname;
 195                                 $this->output( "Estimating transcoding... $altname\n" );
 196                         } else {
 197                                 # @todo FIXME: create renameFile()
 198                                 $filename = $this->renameFile( $filename );
 199                         }
 200                 }
 201
 202                 if ( $filename == '' ) {
 203                         $this->output( "Empty filename for $fullpath\n" );
 204                         return;
 205                 }
 206                 if ( !$this->dryrun ) {
 207                         $file = wfLocalFile( $filename );
 208                         if ( !$file->recordUpload( '', '(recovered file, missing upload log entry)', '', '', '',
 209                                 false, $timestamp ) )
 210                         {
 211                                 $this->output( "Error uploading file $fullpath\n" );
 212                                 return;
 213                         }
 214                 }
 215                 $this->output( $fullpath . "\n" );
 216         }
 217 }
 218
 219 $maintClass = 'ImageBuilder';
 220 require_once( RUN_MAINTENANCE_IF_MAIN );