clang-format-check.yml

name: clang-format-check

# Cancel in-progress jobs if we're adding additional commits
concurrency: 
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

# Controls when the workflow will run
on:
  # Triggers the workflow on push or pull request events but only for the "main" branch
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
  CLANG_VERSION: 14 

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on:
      - ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
    
      - name: Install clang tools
        run: |
          sudo apt-get install clang-format-${CLANG_VERSION}
      
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: false
          fetch-depth: 0

      # Runs a set of commands using the runners shell
      #   Exclude register header files. Those don't follow clang formatting or it becomes unreadable
      - name: clang-format-check
        run: |
          CHANGE_FILES=$(git diff --ignore-submodules --name-only remotes/origin/main '*.c' '*.h' ':!*_regs.h' ':!*weights.h' ':!*cnn.h' ':!*cnn.c' ':!*sampledata.h' ':!*sampleoutput.h' ':!*softmax.c' ':!Examples/*/Coremark/*' ':!Libraries/FCL' ':!Libraries/FreeRTOS' ':!Libraries/lwIP' ':!Libraries/littlefs' ':!Libraries/FreeRTOS-Plus' ':!Libraries/LC3' ':!Libraries/SDHC' ':!Libraries/MAXUSB' ':!Libraries/Cordio' ':!Libraries/LVGL' ':!Libraries/Coremark' ':!Libraries/MiscDrivers/BarcodeDecoder')
          if [[ "$CHANGE_FILES" != "" ]]; then
            bash -e .github/workflows/clang-format-run.sh $CHANGE_FILES
          fi