maintenance/storage/dumpRev.php

   1 <?php
   2 /**
   3  * Get the text of a revision, resolving external storage if needed.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Maintenance ExternalStorage
  22  */
  23
  24 use MediaWiki\MediaWikiServices;
  25 use MediaWiki\Storage\SlotRecord;
  26
  27 require_once __DIR__ . '/../Maintenance.php';
  28
  29 /**
  30  * Maintenance script that gets the text of a revision,
  31  * resolving external storage if needed.
  32  *
  33  * @ingroup Maintenance ExternalStorage
  34  */
  35 class DumpRev extends Maintenance {
  36         public function __construct() {
  37                 parent::__construct();
  38                 $this->addArg( 'rev-id', 'Revision ID', true );
  39         }
  40
  41         public function execute() {
  42                 $id = (int)$this->getArg();
  43
  44                 $lookup = MediaWikiServices::getInstance()->getRevisionLookup();
  45                 $rev = $lookup->getRevisionById( $id );
  46                 if ( !$rev ) {
  47                         $this->fatalError( "Row not found" );
  48                 }
  49
  50                 $content = $rev->getContent( SlotRecord::MAIN );
  51                 if ( !$content ) {
  52                         $this->fatalError( "Text not found" );
  53                 }
  54
  55                 $blobStore = MediaWikiServices::getInstance()->getBlobStore();
  56                 $slot = $rev->getSlot( SlotRecord::MAIN );
  57                 $text = $blobStore->getBlob( $slot->getAddress() );
  58
  59                 $this->output( "Text length: " . strlen( $text ) . "\n" );
  60                 $this->output( substr( $text, 0, 100 ) . "\n" );
  61         }
  62 }
  63
  64 $maintClass = DumpRev::class;
  65 require_once RUN_MAINTENANCE_IF_MAIN;