includes/composer/ComposerHookHandler.php

   1 <?php
   2
   3 use Composer\Package\Package;
   4 use Composer\Plugin\PluginInterface;
   5 use Composer\Script\Event;
   6
   7 /**
   8  * @license GPL-2.0-or-later
   9  * @author Jeroen De Dauw < jeroendedauw@gmail.com >
  10  */
  11 class ComposerHookHandler {
  12
  13         private static function startAutoloader() {
  14                 $GLOBALS['IP'] = __DIR__ . '/../../';
  15                 require_once __DIR__ . '/../AutoLoader.php';
  16         }
  17
  18         public static function onPreUpdate( Event $event ) {
  19                 self::checkMergePluginActive( $event );
  20                 self::startAutoloader();
  21                 self::handleChangeEvent( $event );
  22         }
  23
  24         /**
  25          * Check if composer-merge-plugin has been activated. If not, the most
  26          * likely explanation is that an old version of the plugin was present
  27          * which did not support Composer 2, and so Composer disabled it.
  28          *
  29          * @param Event $event
  30          * @throws Exception
  31          */
  32         private static function checkMergePluginActive( Event $event ) {
  33                 if ( version_compare( PluginInterface::PLUGIN_API_VERSION, '2.0.0', '>=' ) ) {
  34                         foreach ( $event->getComposer()->getPluginManager()->getPlugins() as $plugin ) {
  35                                 if ( $plugin instanceof \Wikimedia\Composer\Merge\V2\MergePlugin ) {
  36                                         // If v2 of wikimedia/composer-merge-plugin is already installed,
  37                                         // nothing needs doing
  38                                         return;
  39                                 }
  40
  41                                 // Check if v1 of wikimedia/composer-merge-plugin is still installed
  42                                 if ( $plugin instanceof \Wikimedia\Composer\MergePlugin ) {
  43                                         throw new \Exception( "wikimedia/composer-merge-plugin 2.x is not activated. " .
  44                                                 "Use Composer 1.x to update wikimedia/composer-merge-plugin to version " .
  45                                                 "2.x before running Composer 2.x." );
  46                                 }
  47                         }
  48                 }
  49         }
  50
  51         public static function onPreInstall( Event $event ) {
  52                 self::startAutoloader();
  53                 self::handleChangeEvent( $event );
  54         }
  55
  56         private static function handleChangeEvent( Event $event ) {
  57                 $package = $event->getComposer()->getPackage();
  58
  59                 if ( $package instanceof Package ) {
  60                         $packageModifier = new ComposerPackageModifier(
  61                                 $package,
  62                                 new ComposerVersionNormalizer(),
  63                                 new MediaWikiVersionFetcher()
  64                         );
  65
  66                         $packageModifier->setProvidesMediaWiki();
  67                 }
  68         }
  69 }