[Infra][Multi-arch] Placeholder for Manifest creation

.github/workflows/multi_arch_build_portable_linux.yml

@@ -285,3 +285,33 @@ jobs:
     permissions:
       contents: read
       id-token: write
+
+  # ==========================================================================
+  # STAGE: Manifest commit log (generic)
+  # ==========================================================================
+  manifest_summary:
+    needs: [compiler-runtime, foundation, math-libs, comm-libs]
+    if: ${{ !cancelled() && !failure() }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all stage submodule commit
+        uses: actions/download-artifact@v4
+        with:
+          pattern: submodule-commit-*
+          merge-multiple: true
+
+      - name: Merge all submodule commit
+        run: |
+          for f in submodule-commit-*.txt; do
+            echo "--- $f ---"
+            cat "$f"
+          done
+
+          cat submodule-commit-*.txt | sort -u > manifest.txt
+
+          cat manifest.txt
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: submodule-commit-all
+          path: manifest.txt

.github/workflows/multi_arch_build_portable_linux_artifacts.yml

@@ -221,7 +221,19 @@ jobs:
 
       - name: Fetch sources
         timeout-minutes: 30
-        run: ./build_tools/fetch_sources.py --stage ${STAGE_NAME} --jobs 12 --depth 1
+        run: |
+             commit_log=$(./build_tools/fetch_sources.py --stage ${STAGE_NAME} --jobs 12 --depth 1)
+             echo "$commit_log" | grep "^Submodule path" | \
+             grep "checked out" | sed "s/Submodule path '\([^']*\)': checked out '\([^']*\)'/\1 \2/" \
+             > submodule-commit-${{ inputs.stage_name }}.txt
+
+      - name: Upload submodule commit file
+        uses: actions/upload-artifact@v4
+        with:
+          name: submodule-commit-${{ inputs.stage_name }}
+          path: submodule-commit-${{ inputs.stage_name }}.txt
+          overwrite: true
+          retention-days: 1
 
       - name: TheRock and llvm SHA
         if: ${{ github.event_name == 'pull_request' || (github.event_name == 'workflow_dispatch' && inputs.test_type != 'full') }}

.github/workflows/teams_notifier.yml

@@ -18,6 +18,10 @@ jobs:
         with:
             sparse-checkout: .github
 
+      - uses: actions/download-artifact@v4
+        with:
+          name: submodule-commit-all
+
       - name: Calculate URLs and Fetch Manifest
         id: extract_urls
         env: