ci: Skip old frontend build if monorepo is present

.github/workflows/frontend-build.yml

@@ -60,21 +60,23 @@ jobs:
       - name: Print Yarn cache size
         run: du -d 0 -h ${{ steps.yarn-cache-dir-path.outputs.dir }}
 
-      - name: Build
-        run: |
-          yarn install --frozen-lockfile
-          yarn run build:production
-        working-directory: ${{ env.FRONTEND_OLD_DIR }}
-
       - name: "Monorepo: Check"
         id: monorepo-check
         run: |
           if [ -e '${{ env.FRONTEND_MONOREPO_DIR }}/package.json' ]; then
             echo "monorepo_path=${{ env.FRONTEND_MONOREPO_DIR }}" >> $GITHUB_OUTPUT
           else
+            echo "old_path=${{ env.FRONTEND_OLD_DIR }}" >> $GITHUB_OUTPUT
             echo "::warning::Frontend Monorepo not found"
           fi
 
+      - name: Build
+        if: steps.monorepo-check.outputs.old_path
+        run: |
+          yarn install --frozen-lockfile
+          yarn run build:production
+        working-directory: ${{ env.FRONTEND_OLD_DIR }}
+
       - name: "Monorepo: Build"
         if: steps.monorepo-check.outputs.monorepo_path
         run: |
@@ -85,7 +87,7 @@ jobs:
       - name: Commit and Push
         run: |
           git add "${{ env.FRONTEND_MONOREPO_DIR }}" || true
-          git add "${{ env.FRONTEND_OLD_DIR }}"
+          git add "${{ env.FRONTEND_OLD_DIR }}" || true
           git status -s
           git commit -m '${{ env.FRONTEND_BUILD_COMMIT_MESSAGE }}' -m 'Workflow run: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}' || true
           git push origin HEAD