maintenance/update.php

   1 #!/usr/bin/env php
   2 <?php
   3 /**
   4  * Run all updaters.
   5  *
   6  * This is used when the database schema is modified and we need to apply patches.
   7  * It is kept compatible with php 4 parsing so that it can give out a meaningful error.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  * @todo document
  26  * @ingroup Maintenance
  27  */
  28
  29 if ( !function_exists( 'version_compare' ) || ( version_compare( PHP_VERSION, '5.3.3' ) < 0 ) ) {
  30         require dirname( __FILE__ ) . '/../includes/PHPVersionError.php';
  31         wfPHPVersionError( 'cli' );
  32 }
  33
  34 $wgUseMasterForMaintenance = true;
  35 require_once __DIR__ . '/Maintenance.php';
  36
  37 /**
  38  * Maintenance script to run database schema updates.
  39  *
  40  * @ingroup Maintenance
  41  */
  42 class UpdateMediaWiki extends Maintenance {
  43         function __construct() {
  44                 parent::__construct();
  45                 $this->mDescription = "MediaWiki database updater";
  46                 $this->addOption( 'skip-compat-checks', 'Skips compatibility checks, mostly for developers' );
  47                 $this->addOption( 'quick', 'Skip 5 second countdown before starting' );
  48                 $this->addOption( 'doshared', 'Also update shared tables' );
  49                 $this->addOption( 'nopurge', 'Do not purge the objectcache table after updates' );
  50                 $this->addOption( 'noschema', 'Only do the updates that are not done during schema updates' );
  51                 $this->addOption(
  52                         'schema',
  53                         'Output SQL to do the schema updates instead of doing them. Works '
  54                                 . 'even when $wgAllowSchemaUpdates is false',
  55                         false,
  56                         true
  57                 );
  58                 $this->addOption( 'force', 'Override when $wgAllowSchemaUpdates disables this script' );
  59                 $this->addOption(
  60                         'skip-external-dependencies',
  61                         'Skips checking whether external dependencies are up to date, mostly for developers'
  62                 );
  63         }
  64
  65         function getDbType() {
  66                 /* If we used the class constant PHP4 would give a parser error here */
  67                 return 2; /* Maintenance::DB_ADMIN */
  68         }
  69
  70         function compatChecks() {
  71                 // Avoid syntax error in PHP4
  72                 $minimumPcreVersion = constant( 'Installer::MINIMUM_PCRE_VERSION' );
  73
  74                 list( $pcreVersion ) = explode( ' ', PCRE_VERSION, 2 );
  75                 if ( version_compare( $pcreVersion, $minimumPcreVersion, '<' ) ) {
  76                         $this->error(
  77                                 "PCRE $minimumPcreVersion or later is required.\n" .
  78                                 "Your PHP binary is linked with PCRE $pcreVersion.\n\n" .
  79                                 "More information:\n" .
  80                                 "https://www.mediawiki.org/wiki/Manual:Errors_and_symptoms/PCRE\n\n" .
  81                                 "ABORTING.\n",
  82                                 true );
  83                 }
  84
  85                 $test = new PhpXmlBugTester();
  86                 if ( !$test->ok ) {
  87                         $this->error(
  88                                 "Your system has a combination of PHP and libxml2 versions that is buggy\n" .
  89                                 "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
  90                                 "Upgrade to libxml2 2.7.3 or later.\n" .
  91                                 "ABORTING (see https://bugs.php.net/bug.php?id=45996).\n",
  92                                 true );
  93                 }
  94         }
  95
  96         function execute() {
  97                 global $wgVersion, $wgLang, $wgAllowSchemaUpdates;
  98
  99                 if ( !$wgAllowSchemaUpdates
 100                         && !( $this->hasOption( 'force' )
 101                                 || $this->hasOption( 'schema' )
 102                                 || $this->hasOption( 'noschema' ) )
 103                 ) {
 104                         $this->error( "Do not run update.php on this wiki. If you're seeing this you should\n"
 105                                 . "probably ask for some help in performing your schema updates or use\n"
 106                                 . "the --noschema and --schema options to get an SQL file for someone\n"
 107                                 . "else to inspect and run.\n\n"
 108                                 . "If you know what you are doing, you can continue with --force\n", true );
 109                 }
 110
 111                 $this->fileHandle = null;
 112                 if ( substr( $this->getOption( 'schema' ), 0, 2 ) === "--" ) {
 113                         $this->error( "The --schema option requires a file as an argument.\n", true );
 114                 } elseif ( $this->hasOption( 'schema' ) ) {
 115                         $file = $this->getOption( 'schema' );
 116                         $this->fileHandle = fopen( $file, "w" );
 117                         if ( $this->fileHandle === false ) {
 118                                 $err = error_get_last();
 119                                 $this->error( "Problem opening the schema file for writing: $file\n\t{$err['message']}", true );
 120                         }
 121                 }
 122
 123                 $wgLang = Language::factory( 'en' );
 124
 125                 define( 'MW_UPDATER', true );
 126
 127                 $this->output( "MediaWiki {$wgVersion} Updater\n\n" );
 128
 129                 wfWaitForSlaves( 5 ); // let's not kill databases, shall we? ;) --tor
 130
 131                 if ( !$this->hasOption( 'skip-compat-checks' ) ) {
 132                         $this->compatChecks();
 133                 } else {
 134                         $this->output( "Skipping compatibility checks, proceed at your own risk (Ctrl+C to abort)\n" );
 135                         wfCountdown( 5 );
 136                 }
 137
 138                 // Check external dependencies are up to date
 139                 if ( !$this->hasOption( 'skip-external-dependencies' ) ) {
 140                         $composerLockUpToDate = $this->runChild( 'CheckComposerLockUpToDate' );
 141                         $composerLockUpToDate->execute();
 142                 } else {
 143                         $this->output(
 144                                 "Skipping checking whether external dependencies are up to date, proceed at your own risk\n"
 145                         );
 146                 }
 147
 148                 # Attempt to connect to the database as a privileged user
 149                 # This will vomit up an error if there are permissions problems
 150                 $db = wfGetDB( DB_MASTER );
 151
 152                 $this->output( "Going to run database updates for " . wfWikiID() . "\n" );
 153                 if ( $db->getType() === 'sqlite' ) {
 154                         $this->output( "Using SQLite file: '{$db->getDbFilePath()}'\n" );
 155                 }
 156                 $this->output( "Depending on the size of your database this may take a while!\n" );
 157
 158                 if ( !$this->hasOption( 'quick' ) ) {
 159                         $this->output( "Abort with control-c in the next five seconds "
 160                                 . "(skip this countdown with --quick) ... " );
 161                         wfCountDown( 5 );
 162                 }
 163
 164                 $time1 = new MWTimestamp();
 165
 166                 $shared = $this->hasOption( 'doshared' );
 167
 168                 $updates = array( 'core', 'extensions' );
 169                 if ( !$this->hasOption( 'schema' ) ) {
 170                         if ( $this->hasOption( 'noschema' ) ) {
 171                                 $updates[] = 'noschema';
 172                         }
 173                         $updates[] = 'stats';
 174                 }
 175
 176                 $updater = DatabaseUpdater::newForDb( $db, $shared, $this );
 177                 $updater->doUpdates( $updates );
 178
 179                 foreach ( $updater->getPostDatabaseUpdateMaintenance() as $maint ) {
 180                         $child = $this->runChild( $maint );
 181
 182                         // LoggedUpdateMaintenance is checking the updatelog itself
 183                         $isLoggedUpdate = is_a( $child, 'LoggedUpdateMaintenance' );
 184
 185                         if ( !$isLoggedUpdate && $updater->updateRowExists( $maint ) ) {
 186                                 continue;
 187                         }
 188
 189                         $child->execute();
 190                         if ( !$isLoggedUpdate ) {
 191                                 $updater->insertUpdateRow( $maint );
 192                         }
 193                 }
 194
 195                 $updater->setFileAccess();
 196                 if ( !$this->hasOption( 'nopurge' ) ) {
 197                         $updater->purgeCache();
 198                 }
 199
 200                 $time2 = new MWTimestamp();
 201                 $timeDiff = $time2->diff( $time1 );
 202                 $this->output( "\nDone in " . $timeDiff->format( "%i:%S" ) . ".\n" );
 203         }
 204
 205         function afterFinalSetup() {
 206                 global $wgLocalisationCacheConf;
 207
 208                 # Don't try to access the database
 209                 # This needs to be disabled early since extensions will try to use the l10n
 210                 # cache from $wgExtensionFunctions (bug 20471)
 211                 $wgLocalisationCacheConf = array(
 212                         'class' => 'LocalisationCache',
 213                         'storeClass' => 'LCStoreNull',
 214                         'storeDirectory' => false,
 215                         'manualRecache' => false,
 216                 );
 217         }
 218 }
 219
 220 $maintClass = 'UpdateMediaWiki';
 221 require_once RUN_MAINTENANCE_IF_MAIN;