From db5b08f7f0c61a8c3f584d4dd0a257e7171f8b67 Mon Sep 17 00:00:00 2001
From: Rhys Arkins <rhys@arkins.net>
Date: Wed, 2 Aug 2023 10:34:27 +0200
Subject: [PATCH] fix(npm): handle null lockfile after update

---
 lib/modules/manager/npm/post-update/index.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/modules/manager/npm/post-update/index.ts b/lib/modules/manager/npm/post-update/index.ts
index 5fa20722a8b18bf..537af047a7d12a9 100644
--- a/lib/modules/manager/npm/post-update/index.ts
+++ b/lib/modules/manager/npm/post-update/index.ts
@@ -593,7 +593,7 @@ export async function getAdditionalFiles(
         lockFile: npmLock,
         stderr: res.stderr,
       });
-    } else {
+    } else if (res.lockFile) {
       const existingContent = await getFile(
         npmLock,
         config.reuseExistingBranch ? config.branchName : config.baseBranch
@@ -607,7 +607,7 @@ export async function getAdditionalFiles(
           path: npmLock,
           // TODO: can this be undefined? (#7154)
 
-          contents: res.lockFile!.replace(tokenRe, ''),
+          contents: res.lockFile.replace(tokenRe, ''),
         });
       }
     }