installer: Fix display of UPGRADE by disabling InterwikiLookup

[lhc/web/wiklou.git] / includes / installer / Installer.php

diff --git a/includes/installer/Installer.php b/includes/installer/Installer.php
index aa9cd49..abf4de4 100644 (file)
--- a/includes/installer/Installer.php
+++ b/includes/installer/Installer.php
@@ -23,6 +23,8 @@
  * @file
  * @ingroup Deployment
  */
+
+use MediaWiki\Interwiki\NullInterwikiLookup;
 use MediaWiki\MediaWikiServices;
 use MediaWiki\Shell\Shell;
 
@@ -404,7 +406,7 @@ abstract class Installer {
                $installerConfig = self::getInstallerConfig( $defaultConfig );
 
                // Reset all services and inject config overrides
-               MediaWiki\MediaWikiServices::resetGlobalInstance( $installerConfig );
+               MediaWikiServices::resetGlobalInstance( $installerConfig );
 
                // Don't attempt to load user language options (T126177)
                // This will be overridden in the web installer with the user-specified language
@@ -415,13 +417,19 @@ abstract class Installer {
                Language::getLocalisationCache()->disableBackend();
 
                // Disable all global services, since we don't have any configuration yet!
-               MediaWiki\MediaWikiServices::disableStorageBackend();
+               MediaWikiServices::disableStorageBackend();
 
+               $mwServices = MediaWikiServices::getInstance();
                // Disable object cache (otherwise CACHE_ANYTHING will try CACHE_DB and
                // SqlBagOStuff will then throw since we just disabled wfGetDB)
-               $wgObjectCaches = MediaWikiServices::getInstance()->getMainConfig()->get( 'ObjectCaches' );
+               $wgObjectCaches = $mwServices->getMainConfig()->get( 'ObjectCaches' );
                $wgMemc = ObjectCache::getInstance( CACHE_NONE );
 
+               // Disable interwiki lookup, to avoid database access during parses
+               $mwServices->redefineService( 'InterwikiLookup', function () {
+                       return new NullInterwikiLookup();
+               } );
+
                // Having a user with id = 0 safeguards us from DB access via User::loadOptions().
                $wgUser = User::newFromId( 0 );
                RequestContext::getMain()->setUser( $wgUser );
@@ -990,6 +998,10 @@ abstract class Installer {
                        return true;
                }
 
+               if ( Shell::isDisabled() ) {
+                       return true;
+               }
+
                # Get a list of available locales.
                $result = Shell::command( '/usr/bin/locale', '-a' )
                        ->execute();