Issue #3324995 by claudiu.cristea, GaëlG, dajjen: hook_requirements_alter() is...

Issue #3324995 by claudiu.cristea, GaëlG, dajjen: hook_requirements_alter() is not invoked on update

core/includes/update.inc

@@ -52,6 +52,7 @@ function update_check_requirements() {
 
   // Check requirements of all loaded modules.
   $requirements = \Drupal::moduleHandler()->invokeAll('requirements', ['update']);
+  \Drupal::moduleHandler()->alter('requirements', $requirements);
   $requirements += update_system_schema_requirements();
   return $requirements;
 }

core/modules/system/tests/modules/update_script_test/update_script_test.install

@@ -28,7 +28,7 @@ function update_script_test_requirements($phase) {
         $requirements['update_script_test'] = [
           'title' => 'Update script test',
           'value' => 'Error',
-          'description' => 'This is a requirements error provided by the update_script_test module.',
+          'description' => 'This is a (buggy description fixed in update_script_test_requirements_alter()) requirements error provided by the update_script_test module.',
           'severity' => REQUIREMENT_ERROR,
         ];
         break;
@@ -38,6 +38,15 @@ function update_script_test_requirements($phase) {
   return $requirements;
 }
 
+/**
+ * Implements hook_requirements_alter().
+ */
+function update_script_test_requirements_alter(array &$requirements): void {
+  if (isset($requirements['update_script_test']) && $requirements['update_script_test']['severity'] === REQUIREMENT_ERROR) {
+    $requirements['update_script_test']['description'] = 'This is a requirements error provided by the update_script_test module.';
+  }
+}
+
 /**
  * Implements hook_update_last_removed().
  */