From a480919ec3ff361c6aef97cce24fbed88213cabc Mon Sep 17 00:00:00 2001
From: Hiroyasu Nishiyama <hiroyasu.nishiyama.uq@hitachi.com>
Date: Mon, 26 Apr 2021 09:05:53 +0900
Subject: [PATCH] fix error on auto commit for no flow change

---
 .../lib/storage/localfilesystem/projects/index.js     | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/node_modules/@node-red/runtime/lib/storage/localfilesystem/projects/index.js b/packages/node_modules/@node-red/runtime/lib/storage/localfilesystem/projects/index.js
index 0533fe5e6..1565decdd 100644
--- a/packages/node_modules/@node-red/runtime/lib/storage/localfilesystem/projects/index.js
+++ b/packages/node_modules/@node-red/runtime/lib/storage/localfilesystem/projects/index.js
@@ -608,8 +608,15 @@ async function saveFlows(flows, user) {
             var workflowMode = (gitSettings.workflow||{}).mode || settings.editorTheme.projects.workflow.mode;
             if (workflowMode === 'auto') {
                 return activeProject.stageFile([flowsFullPath, credentialsFile]).then(() => {
-                    return activeProject.commit(user,{message:"Update flow files"})
-                })
+                    return activeProject.status(user, false).then((result) => {
+                        const items = Object.values(result.files || {});
+                        // check if saved flow make modification to repository
+                        if (items.findIndex((item) => (item.status === "M ")) < 0) {
+                            return Promise.resolve();
+                        }
+                        return activeProject.commit(user,{message:"Update flow files"})
+                    });
+                });
             }
         }
     });