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  * @file
   9  * @todo document
  10  * @ingroup Maintenance
  11  */
  12
  13 if ( !function_exists( 'version_compare' ) || ( version_compare( phpversion(), '5.1.0' ) < 0 ) ) {
  14         echo "You are using PHP version " . phpversion() . " but MediaWiki needs PHP 5.1.0 or higher. ABORTING.\n" .
  15         "Check if you have a newer php executable with a different name, such as php5.\n";
  16         die( 1 );
  17 }
  18
  19 $wgUseMasterForMaintenance = true;
  20 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  21
  22 class UpdateMediaWiki extends Maintenance {
  23
  24         function __construct() {
  25                 parent::__construct();
  26                 $this->mDescription = "MediaWiki database updater";
  27                 $this->addOption( 'skip-compat-checks', 'Skips compatibility checks, mostly for developers' );
  28                 $this->addOption( 'quick', 'Skip 5 second countdown before starting' );
  29                 $this->addOption( 'doshared', 'Also update shared tables' );
  30                 $this->addOption( 'nopurge', 'Do not purge the objectcache table after updates' );
  31         }
  32
  33         function getDbType() {
  34                 /* If we used the class constant PHP4 would give a parser error here */
  35                 return 2 /* Maintenance::DB_ADMIN */;
  36         }
  37
  38         private function compatChecks() {
  39                 $test = new PhpXmlBugTester();
  40                 if ( !$test->ok ) {
  41                         $this->error(
  42                                 "Your system has a combination of PHP and libxml2 versions which is buggy\n" .
  43                                 "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
  44                                 "Upgrade to PHP 5.2.9 or later and libxml2 2.7.3 or later!\n" .
  45                                 "ABORTING (see http://bugs.php.net/bug.php?id=45996).\n",
  46                                 true );
  47                 }
  48
  49                 $test = new PhpRefCallBugTester;
  50                 $test->execute();
  51                 if ( !$test->ok ) {
  52                         $ver = phpversion();
  53                         $this->error(
  54                                 "PHP $ver is not compatible with MediaWiki due to a bug involving\n" .
  55                                 "reference parameters to __call. Upgrade to PHP 5.3.2 or higher, or \n" .
  56                                 "downgrade to PHP 5.3.0 to fix this.\n" .
  57                                 "ABORTING (see http://bugs.php.net/bug.php?id=50394 for details)\n",
  58                                 true );
  59                 }
  60         }
  61
  62         function execute() {
  63                 global $wgVersion, $wgTitle, $wgLang;
  64
  65                 $wgLang = Language::factory( 'en' );
  66                 $wgTitle = Title::newFromText( "MediaWiki database updater" );
  67
  68                 $this->output( "MediaWiki {$wgVersion} Updater\n\n" );
  69
  70                 if ( !$this->hasOption( 'skip-compat-checks' ) ) {
  71                         $this->compatChecks();
  72                 } else {
  73                         $this->output( "Skipping compatibility checks, proceed at your own risk (Ctrl+C to abort)\n" );
  74                         wfCountdown( 5 );
  75                 }
  76
  77                 # Attempt to connect to the database as a privileged user
  78                 # This will vomit up an error if there are permissions problems
  79                 $db = wfGetDB( DB_MASTER );
  80
  81                 $this->output( "Going to run database updates for " . wfWikiID() . "\n" );
  82                 $this->output( "Depending on the size of your database this may take a while!\n" );
  83
  84                 if ( !$this->hasOption( 'quick' ) ) {
  85                         $this->output( "Abort with control-c in the next five seconds (skip this countdown with --quick) ... " );
  86                         wfCountDown( 5 );
  87                 }
  88
  89                 $shared = $this->hasOption( 'doshared' );
  90                 $purge = !$this->hasOption( 'nopurge' );
  91
  92                 $updater = DatabaseUpdater::newForDb( $db, $shared, $this );
  93                 $updater->doUpdates( $purge );
  94
  95                 foreach( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
  96                         $child = $this->runChild( $maint );
  97                         $child->execute();
  98                 }
  99
 100                 $this->output( "\nDone.\n" );
 101         }
 102
 103         function afterFinalSetup() {
 104                 global $wgLocalisationCacheConf;
 105
 106                 # Don't try to access the database
 107                 # This needs to be disabled early since extensions will try to use the l10n
 108                 # cache from $wgExtensionFunctions (bug 20471)
 109                 $wgLocalisationCacheConf = array(
 110                         'class' => 'LocalisationCache',
 111                         'storeClass' => 'LCStore_Null',
 112                         'storeDirectory' => false,
 113                         'manualRecache' => false,
 114                 );
 115         }
 116 }
 117
 118 $maintClass = 'UpdateMediaWiki';
 119 require_once( DO_MAINTENANCE );