Import "getPainlessError" function from Kibana

public/kibana-integrations/get_painless_error.ts

@@ -0,0 +1,51 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { i18n } from '@kbn/i18n';
+import { get } from 'lodash';
+
+export function getPainlessError(error: Error) {
+  const rootCause: Array<{ lang: string; script: string }> | undefined = get(
+    error,
+    'resp.error.root_cause'
+  );
+
+  if (!rootCause) {
+    return;
+  }
+
+  const [{ lang, script }] = rootCause;
+
+  if (lang !== 'painless') {
+    return;
+  }
+
+  return {
+    lang,
+    script,
+    message: i18n.translate(
+      'kbn.discover.painlessError.painlessScriptedFieldErrorMessage',
+      {
+        defaultMessage: "Error with Painless scripted field '{script}'.",
+        values: { script }
+      }
+    ),
+    error: error.message
+  };
+}

public/kibana-integrations/kibana-discover.js

@@ -99,6 +99,8 @@ import { buildVislibDimensions } from 'ui/visualize/loader/pipeline_helpers/buil
 
 import 'ui/courier/search_strategy/default_search_strategy';
 
+import { getPainlessError } from './get_painless_error';
+
 const app = uiModules.get('apps/discover', [
   'kibana/notify',
   'kibana/courier',