maintenance/update.php

   1 <?php
   2 /**
   3  * Run all updaters.
   4  *
   5  * This is used when the database schema is modified and we need to apply patches.
   6  * It is kept compatible with php 4 parsing so that it can give out a meaningful error.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  * http://www.gnu.org/copyleft/gpl.html
  22  *
  23  * @file
  24  * @todo document
  25  * @ingroup Maintenance
  26  */
  27
  28 if ( !function_exists( 'version_compare' ) || ( version_compare( phpversion(), '5.1.0' ) < 0 ) ) {
  29         echo "You are using PHP version " . phpversion() . " but MediaWiki needs PHP 5.1.0 or higher. ABORTING.\n" .
  30         "Check if you have a newer php executable with a different name, such as php5.\n";
  31         die( 1 );
  32 }
  33
  34 $wgUseMasterForMaintenance = true;
  35 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  36
  37 class UpdateMediaWiki extends Maintenance {
  38
  39         function __construct() {
  40                 parent::__construct();
  41                 $this->mDescription = "MediaWiki database updater";
  42                 $this->addOption( 'skip-compat-checks', 'Skips compatibility checks, mostly for developers' );
  43                 $this->addOption( 'quick', 'Skip 5 second countdown before starting' );
  44                 $this->addOption( 'doshared', 'Also update shared tables' );
  45                 $this->addOption( 'nopurge', 'Do not purge the objectcache table after updates' );
  46         }
  47
  48         function getDbType() {
  49                 /* If we used the class constant PHP4 would give a parser error here */
  50                 return 2 /* Maintenance::DB_ADMIN */;
  51         }
  52
  53         private function compatChecks() {
  54                 $test = new PhpXmlBugTester();
  55                 if ( !$test->ok ) {
  56                         $this->error(
  57                                 "Your system has a combination of PHP and libxml2 versions which is buggy\n" .
  58                                 "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
  59                                 "Upgrade to PHP 5.2.9 or later and libxml2 2.7.3 or later!\n" .
  60                                 "ABORTING (see http://bugs.php.net/bug.php?id=45996).\n",
  61                                 true );
  62                 }
  63
  64                 $test = new PhpRefCallBugTester;
  65                 $test->execute();
  66                 if ( !$test->ok ) {
  67                         $ver = phpversion();
  68                         $this->error(
  69                                 "PHP $ver is not compatible with MediaWiki due to a bug involving\n" .
  70                                 "reference parameters to __call. Upgrade to PHP 5.3.2 or higher, or \n" .
  71                                 "downgrade to PHP 5.3.0 to fix this.\n" .
  72                                 "ABORTING (see http://bugs.php.net/bug.php?id=50394 for details)\n",
  73                                 true );
  74                 }
  75         }
  76
  77         function execute() {
  78                 global $wgVersion, $wgTitle, $wgLang;
  79
  80                 $wgLang = Language::factory( 'en' );
  81                 $wgTitle = Title::newFromText( "MediaWiki database updater" );
  82
  83                 $this->output( "MediaWiki {$wgVersion} Updater\n\n" );
  84
  85                 if ( !$this->hasOption( 'skip-compat-checks' ) ) {
  86                         $this->compatChecks();
  87                 } else {
  88                         $this->output( "Skipping compatibility checks, proceed at your own risk (Ctrl+C to abort)\n" );
  89                         wfCountdown( 5 );
  90                 }
  91
  92                 # Attempt to connect to the database as a privileged user
  93                 # This will vomit up an error if there are permissions problems
  94                 $db = wfGetDB( DB_MASTER );
  95
  96                 $this->output( "Going to run database updates for " . wfWikiID() . "\n" );
  97                 $this->output( "Depending on the size of your database this may take a while!\n" );
  98
  99                 if ( !$this->hasOption( 'quick' ) ) {
 100                         $this->output( "Abort with control-c in the next five seconds (skip this countdown with --quick) ... " );
 101                         wfCountDown( 5 );
 102                 }
 103
 104                 $shared = $this->hasOption( 'doshared' );
 105                 $purge = !$this->hasOption( 'nopurge' );
 106
 107                 $updater = DatabaseUpdater::newForDb( $db, $shared, $this );
 108                 $updater->doUpdates( $purge );
 109
 110                 foreach( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
 111                         $child = $this->runChild( $maint );
 112                         $child->execute();
 113                 }
 114
 115                 $this->output( "\nDone.\n" );
 116         }
 117
 118         function afterFinalSetup() {
 119                 global $wgLocalisationCacheConf;
 120
 121                 # Don't try to access the database
 122                 # This needs to be disabled early since extensions will try to use the l10n
 123                 # cache from $wgExtensionFunctions (bug 20471)
 124                 $wgLocalisationCacheConf = array(
 125                         'class' => 'LocalisationCache',
 126                         'storeClass' => 'LCStore_Null',
 127                         'storeDirectory' => false,
 128                         'manualRecache' => false,
 129                 );
 130         }
 131 }
 132
 133 $maintClass = 'UpdateMediaWiki';
 134 require_once( RUN_MAINTENANCE_IF_MAIN );