Add frontpage reset with hook

islandora.install

@@ -174,3 +174,26 @@ function update_jsonld_included_namespaces() {
       ->warning("Could not find required jsonld.settings to add default RDF namespaces.");
   }
 }
+
+/**
+ * Switches homepage to a twig based version.
+ */
+function islandora_update_8007() {
+  reset_homepage();
+}
+
+/**
+ * Used by install and update_8007 to reset homepage to use twig.
+ */
+function reset_homepage() {
+  $frontPage = \Drupal::configFactory()->get('system.site')->get('page.front');
+  $original_template = \Drupal::service('file_system')->realpath(\Drupal::service('module_handler')->getModule('islandora')->getPath());
+  $theme_templates = DRUPAL_ROOT . '/' . drupal_get_path('theme', \Drupal::config('system.theme')->get('default')) . '/templates';
+  if (! file_exists($theme_templates . '/welcome.html.twig')) {
+    copy( $original_template . '/templates/welcome.html.twig', $theme_templates . '/welcome.html.twig');
+    copy( $original_template . '/templates/welcome_base.html.twig', $theme_templates . '/welcome_base.html.twig');
+  }
+  if ($frontPage != '/welcome') {
+    \Drupal::configFactory()->getEditable('system.site')->set('page.front', '/welcome')->save();
+  }
+}