PR: troubleshooting the PR not being created

.github/workflows/pr_from_upstream.yml

@@ -50,24 +50,24 @@ jobs:
           echo "Syncing from upstream repository ${{ env.UPSTREAM_REPO }} on branch ${{ env.TARGET_BRANCH }}"
 
           echo "BRANCH_NAME=${BRANCH_NAME}" >> $GITHUB_ENV
-
+      
           # Fetch and delete the branch if it exists locally
           git fetch origin
           if git rev-parse --verify "$BRANCH_NAME" >/dev/null 2>&1; then
             echo "Branch $BRANCH_NAME exists locally. Deleting it."
             git branch -D "$BRANCH_NAME"
           fi
-
+      
           # Check if the branch exists on the remote and delete it if it does
           if git ls-remote --heads origin "$BRANCH_NAME" | grep "$BRANCH_NAME"; then
             echo "Branch $BRANCH_NAME exists on the remote. Deleting it."
             git push origin --delete "$BRANCH_NAME"
           fi
-          
+      
           # Perform fetch and merge, attempting to resolve conflicts by preferring the upstream changes
           git fetch "${{ env.UPSTREAM_REPO }}" "${{ env.TARGET_BRANCH }}"
           git checkout -b "$BRANCH_NAME"
-
+      
           # Attempt to merge, allowing conflicts
           if ! git merge FETCH_HEAD -m "Merge changes from upstream ${{ env.UPSTREAM_REPO }}/${{ env.TARGET_BRANCH }}"; then
             echo "Conflicts detected. Staging conflicted files for the pull request."
@@ -76,17 +76,17 @@ jobs:
             # Commit the merge with conflicts
             git commit -m "Merge changes from upstream ${{ env.UPSTREAM_REPO }}/${{ env.TARGET_BRANCH }} with conflicts"
           fi
-
+      
           # Check if any changes were introduced by the merge
-          if [ -z "$(git diff --stat)" ]; then
+          if git diff --exit-code "origin/${{ env.TARGET_BRANCH }}"; then
             echo "No changes detected after merging. Exiting."
-            exit 0
           fi
-
+        
       - name: Push changes to new branch
         if: success()
         run: |
           git push origin "${{ env.BRANCH_NAME }}"
+        
 
       - name: Create Pull Request
         if: success()