enable ci clang

Author: hathach

.github/workflows/githubci.yml

@@ -45,8 +45,6 @@ jobs:
   clang_and_doxy:
     runs-on: ubuntu-latest
     needs: build
-    # skip clang and doxy for now
-    if: ${{ 'true' == 'false' }}
     steps:
     - name: Setup Python
       uses: actions/setup-python@v1
@@ -66,7 +64,7 @@ jobs:
       run: bash ci/actions_install.sh
 
     - name: clang
-      run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r .
+      run: python3 ci/run-clang-format.py -r src/arduino
 
     - name: doxygen
       env: