From 154496719e42ec319c6b5b0e5e55e70f7bc4ed5d Mon Sep 17 00:00:00 2001
From: Marc Mattmueller <marc.mattmueller@netmodule.com>
Date: Wed, 21 Jul 2021 11:10:20 +0200
Subject: [PATCH] jenkins/update2head: skip push if nothing available to commit

BugzID_ 73789
Signed-off-by: Marc Mattmueller <marc.mattmueller@netmodule.com>
---
 Jenkinsfile_update2head | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Jenkinsfile_update2head b/Jenkinsfile_update2head
index 35251ae..7e4021e 100644
--- a/Jenkinsfile_update2head
+++ b/Jenkinsfile_update2head
@@ -107,5 +107,10 @@ def commitChanges(isNmUpdate, isCommunityUpdate) {
   if(isCommunityUpdate) { updatedLayers += "community" }
   sh(script: "git checkout ${env.BRANCH_NAME}")
   sh(script: "git add -u")
+  stagedData = sh(returnStdout: true, script: "git diff --cached").trim()
+  if("${stagedData}" == "") {
+    println "everything up to date, nothing to commit"
+    return
+  }
   sh(script: "git commit -m \"submodules: updated ${updatedLayers} hashes, triggered by ${env.TRIGGERED_USER}\" && git push")
 }