midnight.yml

name: Midnight CI - clang-tidy check

on:
  workflow_dispatch: # allows manual triggering
  schedule:
    - cron: "0 0 * * *" # runs daily at 00:00

jobs:
  check_new_commit:
    runs-on: ubuntu-latest
    outputs:
      nb_commits: ${{ steps.new_commits.outputs.nb_commits }}
    steps:
      - uses: actions/checkout@v3

      - id: new_commits
        run: echo "nb_commits=$(git log --oneline --since '24 hours ago' | wc -l)" >> $GITHUB_OUTPUT

  clang-tidy-check:
    needs: check_new_commit
    if: needs.check_new_commit.outputs.nb_commits > 0
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Cache
        uses: actions/cache@v3
        with:
          path: |
            ~/.cache/ccache
            ~/micromamba-root/envs/ponio-test
          key: clang-tidy

      - name: mamba and ponio env installation
        uses: mamba-org/setup-micromamba@v1
        with:
          environment-file: environment/conda-environment-test.yml
          environment-name: ponio-test
          cache-environment: true

      - name: clang-tidy installation
        shell: bash -l {0}
        run: |
          conda install -y clang-tools cxx-compiler clang clangxx
          pip install compdb

      - name: Configure
        shell: bash -l {0}
        run: |
          cmake . -Bbuild -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug
          make -C build ponio
          compdb -p build list > compile_commands.json

      - name: Run clang-tidy on ponio
        shell: bash -l {0}
        run: |
          run-clang-tidy