name: Clang Format Checker
on:
  push:
    paths:
      - 'src/**'
  pull_request:
    paths:
      - 'src/**'
env:
 BRANCH_NAME: master
jobs:
  check-format:
    runs-on: ubuntu-latest
    steps:
      - uses: wolletd/clang-format-checker@v1
        with:
          target-ref: ${{ env. BRANCH_NAME }}     # required, merge target