ci: add set -e and debug logging

.gitea/workflows/build.yml

@@ -44,19 +44,24 @@ jobs:
 
       - name: Update image tag in values.yaml (commit-back GitOps)
         run: |
+          set -e
           WORK=/root/.cache/demo-go-api
           cd $WORK
           SHORT=${GITHUB_SHA::8}
-          # Use sed to update image.tag in helm values.yaml
+          echo "Updating tag to ${SHORT}"
           sed -i "s/^  tag:.*/  tag: \"${SHORT}\"/" deploy/helm/values.yaml
-          # Show the diff
-          git diff deploy/helm/values.yaml
-          # Commit and push
+          echo "--- diff ---"
+          git diff deploy/helm/values.yaml || true
           git config user.email "ci@local"
           git config user.name "gitea-ci"
+          if git diff --quiet deploy/helm/values.yaml; then
+            echo "No changes to commit"
+            exit 0
+          fi
           git add deploy/helm/values.yaml
           git commit -m "ci: update image tag to ${SHORT}"
           git push origin main
+          echo "✓ Pushed tag ${SHORT}"
         env:
           GITHUB_SHA: ${{ github.sha }}
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}