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diff --git a/web/modules/contrib/diff/diff.views.inc b/web/modules/contrib/diff/diff.views.inc
new file mode 100644
index 000000000..1c9e8765a
--- /dev/null
+++ b/web/modules/contrib/diff/diff.views.inc
@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * @file
+ * Provide views data for diff.module.
+ */
+
+/**
+ * Implements hook_views_data().
+ */
+function diff_views_data() {
+  $data = [];
+
+  /** @var \Drupal\Core\Entity\EntityTypeInterface $entity_type */
+  foreach (\Drupal::entityTypeManager()->getDefinitions() as $entity_type) {
+    // Add the diff_from and diff_to fields to every revisionable entity type.
+    if ($entity_type->isRevisionable()) {
+      $revision_base_table = $entity_type->getRevisionDataTable() ?: $entity_type->getRevisionTable();
+
+      $data[$revision_base_table]['diff_from'] = [
+        'title' => t('Diff from'),
+        'help' => 'Diff "from" radio button to compare revisions. Also adds the "Compare" button.',
+        'field' => [
+          'id' => 'diff__from',
+        ],
+      ];
+      $data[$revision_base_table]['diff_to'] = [
+        'title' => t('Diff to'),
+        'help' => 'Diff "to" radio button to compare revisions.',
+        'field' => [
+          'id' => 'diff__to',
+        ],
+      ];
+    }
+  }
+
+  return $data;
+}