Create submodule-sync.yml

.github/workflows/submodule-sync.yml

@@ -0,0 +1,40 @@
+on:
+  workflow_dispatch:
+
+jobs:
+  sync:
+    name: Submodule Sync
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Git Sumbodule Update
+        run: |
+          git pull --recurse-submodules
+          git submodule update --remote --recursive
+
+      - name: Verify Changed files
+        uses: tj-actions/verify-changed-files@v8.8
+        id: verify-changed-files
+        with:
+          files: |
+            tests/demo
+
+      - name: Commit changes
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"       
+          git config --local user.name "github-actions[bot]"
+          git add ${{ steps.verify-changed-files.outputs.changed_files }}
+          git commit -m "Updated submodule."
+
+      - name: Push changes
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.PAT_TOKEN }}