Add overview of ignore content on the config sync. page

config_ignore.module

@@ -6,10 +6,66 @@
  */
 
 use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Config\StorageInterface;
+use Drupal\Core\Config\StorageComparer;
+use Drupal\Core\Config\FileStorage;
+use Drupal\Core\Url;
 
 /**
  * Implements hook_form_FORM_ID_alter().
  */
 function config_ignore_form_config_admin_import_form_alter(&$form, FormStateInterface $form_state, $form_id) {
-  // @TODO: list the ignored config.
+
+  // Load Services that we need.
+  $config_directory = config_get_config_directory(CONFIG_SYNC_DIRECTORY);
+  $stock_storage_sync = new FileStorage($config_directory, StorageInterface::DEFAULT_COLLECTION);
+  $active_storage_sync = \Drupal::service('config.storage.sync');
+  $storage = \Drupal::service('config.storage');
+  $config_manager = \Drupal::service('config.manager');
+
+  // Create two StorageComparer objects, one with the filter enabled and one
+  // as without. We will compare them later to see what changes that has been
+  // ignored.
+  $unfiltered_storage_compare = new StorageComparer($stock_storage_sync, $storage, $config_manager);
+  $filtered_storage_compare = new StorageComparer($active_storage_sync, $storage, $config_manager);
+  $unfiltered_storage_compare->createChangelist();
+  $filtered_storage_compare->createChangelist();
+
+  // Create an array of the changes with the filter on.
+  $config_changes = [];
+  foreach ($filtered_storage_compare->getChangelist() as $config_names) {
+    foreach ($config_names as $config_name) {
+      $config_changes[] = $config_name;
+    }
+  }
+
+  foreach ($unfiltered_storage_compare->getAllCollectionNames() as $collection) {
+    foreach ($unfiltered_storage_compare->getChangelist(NULL, $collection) as $config_change_type => $config_names) {
+      foreach ($config_names as $config_name) {
+        // If the config name exists here, but not in the $config_changes array
+        // the it's because it's getting ignored.
+        if (!in_array($config_name, $config_changes)) {
+          $ignored_config_entities[] = [
+            $config_name,
+            $config_change_type,
+          ];
+        }
+      }
+    }
+  }
+
+  // Build a table of changes that are not going to happen, due to the ignored
+  // config entities.
+  if (!empty($ignored_config_entities)) {
+    $form['ignored'] = [
+      '#type' => 'table',
+      '#header' => ['Config name', 'Action'],
+      '#caption' => t('The following configuration entities are ignored due to the <a href="@url">Config Ignore Settings</a> and therefore not displayed in the list above', [
+        '@url' => Url::fromRoute('config_ignore.settings')
+          ->toString()
+      ]),
+      '#rows' => $ignored_config_entities,
+    ];
+  }
+
 }

src/Plugin/ConfigFilter/IgnoreFilter.php

@@ -2,7 +2,6 @@
 
 namespace Drupal\config_ignore\Plugin\ConfigFilter;
 
-use Drupal\Component\Utility\Unicode;
 use Drupal\config_filter\Plugin\ConfigFilterBase;
 use Drupal\Core\Config\StorageInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;

tests/src/Functional/ConfigIgnoreTest.php

@@ -22,7 +22,7 @@ class ConfigIgnoreTest extends BrowserTestBase {
    *
    * @var array
    */
-  public static $modules = ['config_ignore'];
+  public static $modules = ['config_ignore', 'config', 'config_filter'];
 
   /**
    * Verify that the Sync. table gets update with appropriate ignore actions.
@@ -34,30 +34,37 @@ class ConfigIgnoreTest extends BrowserTestBase {
     $this->config('system.site')->set('name', 'Test import')->save();
     $this->config('system.date')->set('first_day', '0')->save();
     $this->config('config_ignore.settings')->set('ignored_config_entities', ['system.site'])->save();
-    // @TODO: Test this differently, I am not sure this is the best way.
-//    $destination = CONFIG_SYNC_DIRECTORY;
-//    $destination_dir = config_get_config_directory($destination);
-//    /** @var CachedStorage $source_storage */
-//    $source_storage = \Drupal::service('config.storage');
-//    $destination_storage = new FileStorage($destination_dir);
-//    foreach ($source_storage->listAll() as $name) {
-//      $destination_storage->write($name, $source_storage->read($name));
-//    }
-
-    // @TODO: Test the ignored config differently, the table is not altered.
-//    // Login with a user that has permission to sync. config.
-//    $this->drupalLogin($this->drupalCreateUser(['synchronize configuration']));
-//
-//    // Change the site name, which is supposed to look as an ignored change
-//    // in on the sync. page.
-//    $this->config('system.site')->set('name', 'Test import with changed title')->save();
-//    $this->config('system.date')->set('first_day', '1')->save();
-//
-//    // Validate that the sync. table informs the user that the config will be
-//    // ignored.
-//    $this->drupalGet('admin/config/development/configuration');
-//    $this->assertSession()->responseContains('✔');
-//    $this->assertSession()->responseContains('✖');
+
+    $destination = CONFIG_SYNC_DIRECTORY;
+    $destination_dir = config_get_config_directory($destination);
+    /** @var CachedStorage $source_storage */
+    $source_storage = \Drupal::service('config.storage');
+    $destination_storage = new FileStorage($destination_dir);
+    foreach ($source_storage->listAll() as $name) {
+      $destination_storage->write($name, $source_storage->read($name));
+    }
+
+    // Login with a user that has permission to sync. config.
+    $this->drupalLogin($this->drupalCreateUser(['synchronize configuration']));
+
+    // Change the site name, which is supposed to look as an ignored change
+    // in on the sync. page.
+    $this->config('system.site')->set('name', 'Test import with changed title')->save();
+    $this->config('system.date')->set('first_day', '1')->save();
+
+    // Validate that the sync. table informs the user that the config will be
+    // ignored.
+    $this->drupalGet('admin/config/development/configuration');
+    $this->assertSession()->linkExists('Config Ignore Settings');
+    /** @var \Behat\Mink\Element\NodeElement[] $table_content */
+    $table_content = $this->xpath('//table[@id="edit-ignored"]//td');
+
+    $table_values = [];
+    foreach ($table_content as $item) {
+      $table_values[] = $item->getHtml();
+    }
+
+    $this->assertTrue(in_array('system.site', $table_values));
   }
 
 }