first commit

core/modules/path/path.js

@@ -0,0 +1,29 @@
+/**
+ * @file
+ * Attaches behaviors for the Path module.
+ */
+(function ($, Drupal) {
+  /**
+   * Behaviors for settings summaries on path edit forms.
+   *
+   * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches summary behavior on path edit forms.
+   */
+  Drupal.behaviors.pathDetailsSummaries = {
+    attach(context) {
+      $(context)
+        .find('.path-form')
+        .drupalSetSummary((context) => {
+          const pathElement = document.querySelector(
+            '.js-form-item-path-0-alias input',
+          );
+          const path = pathElement && pathElement.value;
+          return path
+            ? Drupal.t('Alias: @alias', { '@alias': path })
+            : Drupal.t('No alias');
+        });
+    },
+  };
+})(jQuery, Drupal);