Issue #2366129 by andypost, stefan.r, smustgrave, vacho:...

Issue #2366129 by andypost, stefan.r, smustgrave, vacho: RegisterStreamWrappersPass and other have broken compiler pass for multiple tags

core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterStreamWrappersPass.php

@@ -20,11 +20,18 @@ public function process(ContainerBuilder $container) {
 
     $stream_wrapper_manager = $container->getDefinition('stream_wrapper_manager');
 
-    foreach ($container->findTaggedServiceIds('stream_wrapper') as $id => $attributes) {
+    foreach ($container->findTaggedServiceIds('stream_wrapper') as $id => $tags) {
       $class = $container->getDefinition($id)->getClass();
-      $scheme = $attributes[0]['scheme'];
-
-      $stream_wrapper_manager->addMethodCall('addStreamWrapper', [$id, $class, $scheme]);
+      // Loop through all the tags for this stream wrapper as we may have
+      // multiple schemes.
+      foreach ($tags as $attributes) {
+        $scheme = $attributes['scheme'];
+        $stream_wrapper_manager->addMethodCall('addStreamWrapper', [
+          $id,
+          $class,
+          $scheme,
+        ]);
+      }
     }
   }
 

core/modules/file/tests/file_test/file_test.services.yml

@@ -15,3 +15,8 @@ services:
     class: Drupal\file_test\StreamWrapper\DummyExternalReadOnlyWrapper
     tags:
       - { name: stream_wrapper, scheme: dummy-external-readonly }
+  stream_wrapper.dummy_multiple:
+    class: Drupal\file_test\StreamWrapper\DummyMultipleStreamWrapper
+    tags:
+      - { name: stream_wrapper, scheme: dummy1 }
+      - { name: stream_wrapper, scheme: dummy2 }

core/modules/file/tests/file_test/src/StreamWrapper/DummyMultipleStreamWrapper.php

+<?php
+
+namespace Drupal\file_test\StreamWrapper;
+
+/**
+ * Helper class for testing the stream wrapper registry.
+ *
+ * Dummy stream wrapper implementation (dummy1://, dummy2://).
+ */
+class DummyMultipleStreamWrapper extends DummyStreamWrapper {}

core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php

@@ -324,6 +324,8 @@ public function testModuleStreamWrappers() {
     file_exists('dummy://');
     $stream_wrappers = \Drupal::service('stream_wrapper_manager')->getWrappers();
     $this->assertTrue(isset($stream_wrappers['dummy']));
+    $this->assertTrue(isset($stream_wrappers['dummy1']));
+    $this->assertTrue(isset($stream_wrappers['dummy2']));
   }
 
   /**