Issue #1889752 by alexpott: Fixed Remove unnecessary manifest creation in config_install_default_config().

core/includes/config.inc

@@ -24,23 +24,17 @@ const CONFIG_IMPORT_LOCK = 'config_import';
  *   The name of the module or theme to install default configuration for.
  */
 function config_install_default_config($type, $name) {
+  // If this module defines any ConfigEntity types then create an empty
+  // manifest file for each of them.
+  foreach (config_get_module_config_entities($name) as $entity_info) {
+    config('manifest.' . $entity_info['config_prefix'])->save();
+  }
+
   $config_dir = drupal_get_path($type, $name) . '/config';
   if (is_dir($config_dir)) {
     $source_storage = new FileStorage($config_dir);
     $target_storage = drupal_container()->get('config.storage');
 
-    // If this module defines any ConfigEntity types, then create a manifest file
-    // for each of them with a listing of the objects it maintains.
-    foreach (config_get_module_config_entities($name) as $entity_type => $entity_info) {
-      $manifest_config = config('manifest.' . $entity_info['config_prefix']);
-      $manifest_data = array();
-      foreach ($source_storage->listAll($entity_info['config_prefix']) as $config_name) {
-        list(, , $id) = explode('.', $config_name);
-        $manifest_data[$id]['name'] = $config_name;
-      }
-      $manifest_config->setData($manifest_data)->save();
-    }
-
     $config_changes = array(
       'delete' => array(),
       'create' => array(),

core/modules/config/lib/Drupal/config/Tests/ConfigInstallTest.php

@@ -35,6 +35,13 @@ class ConfigInstallTest extends DrupalUnitTestBase {
   function testModuleInstallation() {
     $default_config = 'config_test.system';
     $default_configuration_entity = 'config_test.dynamic.default';
+    $default_config_manifest = 'manifest.config_test.dynamic';
+    $expected_manifest_data = array(
+      'default' => array(
+        'name' => 'config_test.dynamic.default',
+      ),
+    );
+    $default_empty_config_manifest = 'manifest.config_test.empty_manifest';
 
     // Verify that default module config does not exist before installation yet.
     $config = config($default_config);
@@ -42,6 +49,12 @@ class ConfigInstallTest extends DrupalUnitTestBase {
     $config = config($default_configuration_entity);
     $this->assertIdentical($config->isNew(), TRUE);
 
+    // Verify that configuration entity manifests do not exist.
+    $config = config($default_config_manifest);
+    $this->assertIdentical($config->isNew(), TRUE);
+    $config = config($default_empty_config_manifest);
+    $this->assertIdentical($config->isNew(), TRUE);
+
     // Install the test module.
     $this->enableModules(array('config_test'));
 
@@ -51,6 +64,13 @@ class ConfigInstallTest extends DrupalUnitTestBase {
     $config = config($default_configuration_entity);
     $this->assertIdentical($config->isNew(), FALSE);
 
+    // Verify that configuration entity manifests have been created with
+    // expected contents.
+    $config = config($default_config_manifest);
+    $this->assertIdentical($config->get(), $expected_manifest_data);
+    $config = config($default_empty_config_manifest);
+    $this->assertIdentical($config->get(), array());
+
     // Verify that configuration import callback was invoked for the dynamic
     // configuration entity.
     $this->assertTrue($GLOBALS['hook_config_import']);

core/modules/config/tests/config_test/lib/Drupal/config_test/Plugin/Core/Entity/ConfigTestEmptyManifest.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\config_test\Plugin\Core\Entity\ConfigTestEmptyManifest.
+ */
+
+namespace Drupal\config_test\Plugin\Core\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityBase;
+use Drupal\Core\Annotation\Plugin;
+use Drupal\Core\Annotation\Translation;
+
+/**
+ * Defines the ConfigTestEmptyManifest configuration entity.
+ *
+ * @Plugin(
+ *   id = "config_test_empty_manifest",
+ *   label = @Translation("Test empty manifest creation"),
+ *   module = "config_test",
+ *   controller_class = "Drupal\config_test\ConfigTestStorageController",
+ *   config_prefix = "config_test.empty_manifest",
+ *   entity_keys = {
+ *     "id" = "id",
+ *     "label" = "label",
+ *     "uuid" = "uuid"
+ *   }
+ * )
+ */
+class ConfigTestEmptyManifest extends ConfigEntityBase {
+
+  /**
+   * The machine name for the configuration entity.
+   *
+   * @var string
+   */
+  public $id;
+
+  /**
+   * The UUID for the configuration entity.
+   *
+   * @var string
+   */
+  public $uuid;
+
+  /**
+   * The human-readable name of the configuration entity.
+   *
+   * @var string
+   */
+  public $label;
+
+}

core/modules/system/lib/Drupal/system/Tests/Database/RegressionTest.php

@@ -12,13 +12,6 @@ namespace Drupal\system\Tests\Database;
  */
 class RegressionTest extends DatabaseTestBase {
 
-  /**
-   * Modules to enable.
-   *
-   * @var array
-   */
-  public static $modules = array('node');
-
   public static function getInfo() {
     return array(
       'name' => 'Regression tests',