name: 'Lint C/C++ with clang-format'

on:
  push:
    paths:
      - '**.h'
      - '**.c'
      - '**.hpp'
      - '**.cpp'
  pull_request:

env:
  TARGETS: f6

jobs:
  lint_c_cpp:
    runs-on: [self-hosted]
    steps:
      - name: 'Cleanup workspace'
        uses: AutoModality/action-clean@v1

      - name: 'Decontaminate previous build leftovers'
        run: |
          if [ -d .git ]
          then
            git submodule status \
              || git checkout `git rev-list --max-parents=0 HEAD | tail -n 1`
          fi

      - name: 'Checkout code'
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          submodules: true

      - name: 'Docker cache'
        uses: satackey/action-docker-layer-caching@v0.0.11
        continue-on-error: true
        with:
          key: docker-cache-${{ hashFiles('docker/**') }}-{hash}
          restore-keys: docker-cache-${{ hashFiles('docker/**') }}-

      - name: 'Build docker image'
        uses: ./.github/actions/docker

      - name: 'Check syntax'
        uses: ./.github/actions/docker
        continue-on-error: false
        with:
          run: /syntax_check.sh