Update to Drupal 8.1.0. For more information, see https://www.drupal.org/drupal-8.1.0-release-notes

core/lib/Drupal/Core/Installer/Exception/AlreadyInstalledException.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Exception\AlreadyInstalledException.
- */
-
 namespace Drupal\Core\Installer\Exception;
 
 use Drupal\Core\StringTranslation\TranslationInterface;

core/lib/Drupal/Core/Installer/Exception/InstallerException.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Exception\InstallerException.
- */
-
 namespace Drupal\Core\Installer\Exception;
 
 use Drupal\Core\StringTranslation\StringTranslationTrait;

core/lib/Drupal/Core/Installer/Exception/NoProfilesException.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Exception\NoProfilesException.
- */
-
 namespace Drupal\Core\Installer\Exception;
 
 use Drupal\Core\StringTranslation\TranslationInterface;

core/lib/Drupal/Core/Installer/Form/SelectLanguageForm.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Form\SelectLanguageForm.
- */
-
 namespace Drupal\Core\Installer\Form;
 
 use Drupal\Component\Utility\UserAgent;

core/lib/Drupal/Core/Installer/Form/SelectProfileForm.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Form\SelectProfileForm.
- */
-
 namespace Drupal\Core\Installer\Form;
 
 use Drupal\Core\Form\FormBase;

core/lib/Drupal/Core/Installer/Form/SiteConfigureForm.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Form\SiteConfigureForm.
- */
-
 namespace Drupal\Core\Installer\Form;
 
 use Drupal\Core\Extension\ModuleInstallerInterface;

core/lib/Drupal/Core/Installer/Form/SiteSettingsForm.php

@@ -1,16 +1,12 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\Form\SiteSettingsForm.
- */
-
 namespace Drupal\Core\Installer\Form;
 
 use Drupal\Component\Utility\Crypt;
 use Drupal\Core\Database\Database;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Render\RendererInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -25,14 +21,22 @@ class SiteSettingsForm extends FormBase {
    */
   protected $sitePath;
 
+  /**
+   * The renderer.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
   /**
    * Constructs a new SiteSettingsForm.
    *
    * @param string $site_path
    *   The site path.
    */
-  public function __construct($site_path) {
+  public function __construct($site_path, RendererInterface $renderer) {
     $this->sitePath = $site_path;
+    $this->renderer = $renderer;
 }
 
   /**
@@ -40,7 +44,8 @@ class SiteSettingsForm extends FormBase {
     */
   public static function create(ContainerInterface $container) {
     return new static(
-      $container->get('site.path')
+      $container->get('site.path'),
+      $container->get('renderer')
     );
   }
 
@@ -153,12 +158,54 @@ class SiteSettingsForm extends FormBase {
     $database['driver'] = $driver;
 
     $form_state->set('database', $database);
-    $errors = install_database_errors($database, $form_state->getValue('settings_file'));
-    foreach ($errors as $name => $message) {
+    foreach ($this->getDatabaseErrors($database, $form_state->getValue('settings_file')) as $name => $message) {
       $form_state->setErrorByName($name, $message);
     }
   }
 
+  /**
+   * Get any database errors and links them to a form element.
+   *
+   * @param array $database
+   *   An array of database settings.
+   * @param string $settings_file
+   *   The settings file that contains the database settings.
+   *
+   * @return array
+   *   An array of form errors keyed by the element name and parents.
+   */
+  protected function getDatabaseErrors(array $database, $settings_file) {
+    $errors = install_database_errors($database, $settings_file);
+    $form_errors = array_filter($errors, function($value) {
+      // Errors keyed by something other than an integer already are linked to
+      // form elements.
+      return is_int($value);
+    });
+
+    // Find the generic errors.
+    $errors = array_diff_key($errors, $form_errors);
+
+    if (count($errors)) {
+      $error_message = [
+        '#type' => 'inline_template',
+        '#template' => '{% trans %}Resolve all issues below to continue the installation. For help configuring your database server, see the <a href="https://www.drupal.org/getting-started/install">installation handbook</a>, or contact your hosting provider.{% endtrans%}{{ errors }}',
+        '#context' => [
+          'errors' => [
+            '#theme' => 'item_list',
+            '#items' => $errors,
+          ],
+        ],
+      ];
+
+      // These are generic errors, so we do not have any specific key of the
+      // database connection array to attach them to; therefore, we just put
+      // them in the error array with standard numeric keys.
+      $form_errors[$database['driver'] . '][0'] = $this->renderer->renderPlain($error_message);
+    }
+
+    return $form_errors;
+  }
+
   /**
    * {@inheritdoc}
    */

core/lib/Drupal/Core/Installer/InstallerKernel.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\InstallerKernel.
- */
-
 namespace Drupal\Core\Installer;
 
 use Drupal\Core\DrupalKernel;

core/lib/Drupal/Core/Installer/InstallerRouteBuilder.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\InstallerRouteBuilder.
- */
-
 namespace Drupal\Core\Installer;
 
 use Drupal\Core\Routing\RouteBuilder;

core/lib/Drupal/Core/Installer/InstallerServiceProvider.php

@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Installer\InstallerServiceProvider.
- */
-
 namespace Drupal\Core\Installer;
 
 use Drupal\Core\DependencyInjection\ContainerBuilder;