Issue #2982133 by e0ipso: Do not rebuild container during CLI install

src/EventSubscriber/ConfigSubscriber.php

@@ -50,16 +50,19 @@ class ConfigSubscriber implements EventSubscriberInterface {
    *   The Event to process.
    */
   public function onSave(ConfigCrudEvent $event) {
-    if ($event->getConfig()->getName() === 'jsonapi_extras.settings') {
+    $container = \Drupal::getContainer();
+    // It is problematic to rebuild the container during the installation.
+    $should_process = $container->getParameter('kernel.environment') !== 'install'
+      && $event->getConfig()->getName() === 'jsonapi_extras.settings';
+    if ($should_process) {
       // @see \Drupal\jsonapi_extras\JsonapiExtrasServiceProvider::alter()
       if ($event->isChanged('path_prefix')) {
         $this->drupalKernel->rebuildContainer();
-        $container = \Drupal::getContainer();
         // Because \Drupal\jsonapi\Routing\Routes::routes() uses a container
         // parameter, we need to ensure that it uses the freshly rebuilt
         // container. Due to that, it's impossible to use an injected route
         // builder service, at least until core updates it to support
-        // \Drupal\Core\DrupalKernelInterface::CONTAINER_INITIALIZE_SUBREQUEST_FINISHED
+        // \Drupal\Core\DrupalKernelInterface::CONTAINER_INITIALIZE_SUBREQUEST_FINISHED.
         $this->service = $container->get('router.builder');
         $container->get('router.builder')->rebuild();
       }
@@ -68,7 +71,9 @@ class ConfigSubscriber implements EventSubscriberInterface {
 
   /**
    * Associates JSON API Extras' config cache tag with all JSON API responses.
+   *
    * @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event
+   *   The response event.
    */
   public function onResponse(FilterResponseEvent $event) {
     if ($event->getRequest()->getRequestFormat() !== 'api_json') {
@@ -87,12 +92,13 @@ class ConfigSubscriber implements EventSubscriberInterface {
       ]);
   }
 
-    /**
+  /**
    * {@inheritdoc}
    */
   public static function getSubscribedEvents() {
     $events[ConfigEvents::SAVE][] = ['onSave'];
-    // Run before \Drupal\jsonapi\EventSubscriber\ResourceResponseSubscriber::onResponse()
+    // Run before
+    // \Drupal\jsonapi\EventSubscriber\ResourceResponseSubscriber::onResponse()
     // (priority 128), so we can add JSON API's config cache tag.
     $events[KernelEvents::RESPONSE][] = ['onResponse', 150];
     return $events;