From f8654a3a2ffeeddbd6a838f65baf8539a3022718 Mon Sep 17 00:00:00 2001
From: Dominik Prokop <dominik.prokop@grafana.com>
Date: Thu, 30 Jan 2020 15:42:53 +0100
Subject: [PATCH] grafana/toolkit: Fix failing linter when there were lint
 issues (#21849)

---
 packages/grafana-toolkit/src/cli/tasks/plugin.build.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/grafana-toolkit/src/cli/tasks/plugin.build.ts b/packages/grafana-toolkit/src/cli/tasks/plugin.build.ts
index 348dd2ea679..12cdccc7f14 100644
--- a/packages/grafana-toolkit/src/cli/tasks/plugin.build.ts
+++ b/packages/grafana-toolkit/src/cli/tasks/plugin.build.ts
@@ -149,7 +149,9 @@ export const lintPlugin = useSpinner<Fixable>('Linting', async ({ fix }) => {
 
   if (lintResults.length > 0) {
     console.log('\n');
-    const failures: RuleFailure[] = lintResults.flat();
+    const failures = lintResults.reduce<RuleFailure[]>((failures, result) => {
+      return [...failures, ...result.failures];
+    }, []);
     failures.forEach(f => {
       // tslint:disable-next-line
       console.log(