maintenance/populateSha1.php

   1 <?php
   2 /**
   3  * Optional upgrade script to populate the img_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  * @ingroup Maintenance
  21  */
  22
  23 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  24
  25 class PopulateSha1 extends Maintenance {
  26         public function __construct() {
  27                 parent::__construct();
  28                 $this->mDescription = "Populate the img_sha1 field";
  29                 $this->addOption( 'method', "Use 'pipe' to pipe to mysql command line,\n" .
  30                         "\t\tdefault uses Database class", false, true );
  31                 $this->addOption( 'file', 'Fix for a specific file, without File: namespace prefixed', false, true );
  32         }
  33
  34         public function execute() {
  35                 $method = $this->getOption( 'method', 'normal' );
  36                 $file = $this->getOption( 'file' );
  37
  38                 $t = -microtime( true );
  39                 $dbw = wfGetDB( DB_MASTER );
  40                 if ( $file ) {
  41                         $res = $dbw->selectRow(
  42                                 'image',
  43                                 array( 'img_name' ),
  44                                 array( 'img_name' => $dbw->addQuotes( $file ) ),
  45                                 __METHOD__
  46                         );
  47                         if ( !$res ) {
  48                                 $this->error( "No such file: $file", true );
  49                                 return;
  50                         }
  51                 } else {
  52                         $res = $dbw->select( 'image', array( 'img_name' ), array( 'img_sha1' => '' ), __METHOD__ );
  53                 }
  54                 $imageTable = $dbw->tableName( 'image' );
  55                 $oldimageTable = $dbw->tableName( 'oldimage' );
  56
  57                 if ( $method == 'pipe' ) {
  58                         // @fixme kill this and replace with a second unbuffered DB connection.
  59                         global $wgDBuser, $wgDBserver, $wgDBpassword, $wgDBname;
  60                         $cmd = 'mysql -u' . wfEscapeShellArg( $wgDBuser ) .
  61                                 ' -h' . wfEscapeShellArg( $wgDBserver ) .
  62                                 ' -p' . wfEscapeShellArg( $wgDBpassword, $wgDBname );
  63                         $this->output( "Using pipe method\n" );
  64                         $pipe = popen( $cmd, 'w' );
  65                 }
  66
  67                 $numRows = $res->numRows();
  68                 $i = 0;
  69                 foreach ( $res as $row ) {
  70                         if ( $i % 100 == 0 ) {
  71                                 $this->output( sprintf( "Done %d of %d, %5.3f%%  \r", $i, $numRows, $i / $numRows * 100 ) );
  72                                 wfWaitForSlaves( 5 );
  73                         }
  74                         $file = wfLocalFile( $row->img_name );
  75                         if ( !$file ) {
  76                                 continue;
  77                         }
  78                         $sha1 = File::sha1Base36( $file->getPath() );
  79                         if ( strval( $sha1 ) !== '' ) {
  80                                 $sql = "UPDATE $imageTable SET img_sha1=" . $dbw->addQuotes( $sha1 ) .
  81                                         " WHERE img_name=" . $dbw->addQuotes( $row->img_name );
  82                                 if ( $method == 'pipe' ) {
  83                                         fwrite( $pipe, "$sql;\n" );
  84                                 } else {
  85                                         $dbw->query( $sql, __METHOD__ );
  86                                 }
  87                         }
  88                         $i++;
  89                 }
  90                 if ( $method == 'pipe' ) {
  91                         fflush( $pipe );
  92                         pclose( $pipe );
  93                 }
  94                 $t += microtime( true );
  95                 $this->output( sprintf( "\nDone %d files in %.1f seconds\n", $numRows, $t ) );
  96         }
  97 }
  98
  99 $maintClass = "PopulateSha1";
 100 require_once( DO_MAINTENANCE );