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   1  <?php
   2  /**
   3   * Optional upgrade script to populate the fa_sha1 field
   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
  22   */
  23  
  24  require_once dirname( __FILE__ ) . '/Maintenance.php';
  25  
  26  /**
  27   * Maintenance script to populate the fa_sha1 field.
  28   *
  29   * @ingroup Maintenance
  30   * @since 1.21
  31   */
  32  class PopulateFilearchiveSha1 extends LoggedUpdateMaintenance {
  33  	public function __construct() {
  34          parent::__construct();
  35          $this->mDescription = "Populate the fa_sha1 field from fa_storage_key";
  36      }
  37  
  38  	protected function getUpdateKey() {
  39          return 'populate fa_sha1';
  40      }
  41  
  42  	protected function updateSkippedMessage() {
  43          return 'fa_sha1 column of filearchive table already populated.';
  44      }
  45  
  46  	public function doDBUpdates() {
  47          $startTime = microtime( true );
  48          $dbw = wfGetDB( DB_MASTER );
  49          $table = 'filearchive';
  50          $conds = array( 'fa_sha1' => '', 'fa_storage_key IS NOT NULL' );
  51  
  52          if ( !$dbw->fieldExists( $table, 'fa_sha1', __METHOD__ ) ) {
  53              $this->output( "fa_sha1 column does not exist\n\n", true );
  54  
  55              return false;
  56          }
  57  
  58          $this->output( "Populating fa_sha1 field from fa_storage_key\n" );
  59          $endId = $dbw->selectField( $table, 'MAX(fa_id)', false, __METHOD__ );
  60  
  61          $batchSize = $this->mBatchSize;
  62          $done = 0;
  63  
  64          do {
  65              $res = $dbw->select(
  66                  $table,
  67                  array( 'fa_id', 'fa_storage_key' ),
  68                  $conds,
  69                  __METHOD__,
  70                  array( 'LIMIT' => $batchSize )
  71              );
  72  
  73              $i = 0;
  74              foreach ( $res as $row ) {
  75                  if ( $row->fa_storage_key == '' ) {
  76                      // Revision was missing pre-deletion
  77                      continue;
  78                  }
  79                  $sha1 = LocalRepo::getHashFromKey( $row->fa_storage_key );
  80                  $dbw->update( $table,
  81                      array( 'fa_sha1' => $sha1 ),
  82                      array( 'fa_id' => $row->fa_id ),
  83                      __METHOD__
  84                  );
  85                  $lastId = $row->fa_id;
  86                  $i++;
  87              }
  88  
  89              $done += $i;
  90              if ( $i !== $batchSize ) {
  91                  break;
  92              }
  93  
  94              // print status and let slaves catch up
  95              $this->output( sprintf(
  96                  "id %d done (up to %d), %5.3f%%  \r", $lastId, $endId, $lastId / $endId * 100 ) );
  97              wfWaitForSlaves();
  98          } while ( true );
  99  
 100          $processingTime = microtime( true ) - $startTime;
 101          $this->output( sprintf( "\nDone %d files in %.1f seconds\n", $done, $processingTime ) );
 102  
 103          return true; // we only updated *some* files, don't log
 104      }
 105  }
 106  
 107  $maintClass = "PopulateFilearchiveSha1";
 108  require_once RUN_MAINTENANCE_IF_MAIN;