simple cpplint

.github/workflows/codingstyle.yml

@@ -1,15 +1,13 @@
 name: Check coding style
-on: [push, pull_request]
+on: [push]
 
 jobs:
   Building:
     runs-on: [ubuntu-latest]
     steps:
-      - name: Checkout
-        uses: actions/checkout@v1
-
-      - name: Comment Pull Request
-        uses: thollander/actions-comment-pull-request@1.0.1
-        with:
-          message: '${{ cat tmp }}'
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/checkout@v1
+      - name: Install cpplint
+        run: pip install cpplint
+      - name: Check coding style
+        run: |
+          cpplint --recursive --quiet --verbose=3 .