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(), '5.3.2' ) < 0 ) ) {
  29         echo "You are using PHP version " . phpversion() . " but MediaWiki needs PHP 5.3.2 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                 $this->addOption( 'force', 'Override when $wgAllowSchemaUpdates disables this script' );
  47         }
  48
  49         function getDbType() {
  50                 /* If we used the class constant PHP4 would give a parser error here */
  51                 return 2 /* Maintenance::DB_ADMIN */;
  52         }
  53
  54         function compatChecks() {
  55                 $test = new PhpXmlBugTester();
  56                 if ( !$test->ok ) {
  57                         $this->error(
  58                                 "Your system has a combination of PHP and libxml2 versions which is buggy\n" .
  59                                 "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
  60                                 "Upgrade to PHP 5.2.9 or later and libxml2 2.7.3 or later!\n" .
  61                                 "ABORTING (see http://bugs.php.net/bug.php?id=45996).\n",
  62                                 true );
  63                 }
  64
  65                 $test = new PhpRefCallBugTester;
  66                 $test->execute();
  67                 if ( !$test->ok ) {
  68                         $ver = phpversion();
  69                         $this->error(
  70                                 "PHP $ver is not compatible with MediaWiki due to a bug involving\n" .
  71                                 "reference parameters to __call. Upgrade to PHP 5.3.2 or higher, or \n" .
  72                                 "downgrade to PHP 5.3.0 to fix this.\n" .
  73                                 "ABORTING (see http://bugs.php.net/bug.php?id=50394 for details)\n",
  74                                 true );
  75                 }
  76         }
  77
  78         function execute() {
  79                 global $wgVersion, $wgTitle, $wgLang, $wgAllowSchemaUpdates;
  80
  81                 if( !$wgAllowSchemaUpdates && !$this->hasOption( 'force' ) ) {
  82                         $this->error( "Do not run update.php on this wiki. If you're seeing this you should\n"
  83                                 . "probably ask for some help in performing your schema updates.\n\n"
  84                                 . "If you know what you are doing, you can continue with --force", true );
  85                 }
  86
  87                 $wgLang = Language::factory( 'en' );
  88                 $wgTitle = Title::newFromText( "MediaWiki database updater" );
  89
  90                 $this->output( "MediaWiki {$wgVersion} Updater\n\n" );
  91
  92                 wfWaitForSlaves( 5 ); // let's not kill databases, shall we? ;) --tor
  93
  94                 if ( !$this->hasOption( 'skip-compat-checks' ) ) {
  95                         $this->compatChecks();
  96                 } else {
  97                         $this->output( "Skipping compatibility checks, proceed at your own risk (Ctrl+C to abort)\n" );
  98                         wfCountdown( 5 );
  99                 }
 100
 101                 # Attempt to connect to the database as a privileged user
 102                 # This will vomit up an error if there are permissions problems
 103                 $db = wfGetDB( DB_MASTER );
 104
 105                 $this->output( "Going to run database updates for " . wfWikiID() . "\n" );
 106                 $this->output( "Depending on the size of your database this may take a while!\n" );
 107
 108                 if ( !$this->hasOption( 'quick' ) ) {
 109                         $this->output( "Abort with control-c in the next five seconds (skip this countdown with --quick) ... " );
 110                         wfCountDown( 5 );
 111                 }
 112
 113                 $shared = $this->hasOption( 'doshared' );
 114
 115                 $updates = array( 'core', 'extensions', 'stats' );
 116                 if( !$this->hasOption('nopurge') ) {
 117                         $updates[] = 'purge';
 118                 }
 119
 120                 $updater = DatabaseUpdater::newForDb( $db, $shared, $this );
 121                 $updater->doUpdates( $updates );
 122
 123                 foreach( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
 124                         if ( $updater->updateRowExists( $maint ) ) {
 125                                 continue;
 126                         }
 127                         $child = $this->runChild( $maint );
 128                         $child->execute();
 129                         $updater->insertUpdateRow( $maint );
 130                 }
 131
 132                 $this->output( "\nDone.\n" );
 133         }
 134
 135         function afterFinalSetup() {
 136                 global $wgLocalisationCacheConf;
 137
 138                 # Don't try to access the database
 139                 # This needs to be disabled early since extensions will try to use the l10n
 140                 # cache from $wgExtensionFunctions (bug 20471)
 141                 $wgLocalisationCacheConf = array(
 142                         'class' => 'LocalisationCache',
 143                         'storeClass' => 'LCStore_Null',
 144                         'storeDirectory' => false,
 145                         'manualRecache' => false,
 146                 );
 147         }
 148 }
 149
 150 $maintClass = 'UpdateMediaWiki';
 151 require_once( RUN_MAINTENANCE_IF_MAIN );