Update updateDB

.github/workflows/main.yml

@@ -29,8 +29,4 @@ jobs:
       - name: Update database
         run: |
           cd recurring-execution-with-actions
-          git config user.email "action@github.com"
-          git config user.name "GitHub Action"
-          git add isahn_history.json
-          git commit -m 'Update history'
-          git push -f origin master
+          ./updateDB.sh 

recurring-execution-with-actions/updateDB.sh

@@ -0,0 +1,17 @@
+#!/bin/bash 
+cd recurring-execution-with-actions
+git add isahn_history.json
+set +e  # Grep succeeds with nonzero exit codes to show results.
+git status | grep modified
+if [ $? -eq 0 ]
+then
+    set -e
+    git config user.email "action@github.com"
+    git config user.name "GitHub Action"
+    git commit -am "updated on - $(date)"
+    git push origin master
+else
+    set -e
+    echo "No changes since last run"
+fi
+