clang-tidy.yml

name: Clang-tidy (tiles)

on:
  # push:
  #   branches: [main]
  #   paths: [ "**.cpp", "**.h", "**.c", "**/CMakeLists.txt", "**/Makefile", "**.hpp", "**.cmake", "build-scripts/**","tools/clang-tidy-plugin/**", ".github/workflows/clang-tidy.yml", "**/.clang-tidy" ]
  pull_request:
    branches: [main]
    paths: [ "**.cpp", "**.h", "**.c", "**/CMakeLists.txt", "**/Makefile", "**.hpp", "**.cmake", "build-scripts/**", "tools/clang-tidy-plugin/**", ".github/workflows/clang-tidy.yml", "**/.clang-tidy" ]

# We only care about the latest revision of a PR, so cancel all previous instances.
concurrency:
  group: clang-tidy-build-${{ github.event.pull_request.number || github.ref_name }}
  cancel-in-progress: true

jobs:
  skip-duplicates:
    continue-on-error: true
    runs-on: ubuntu-24.04
    # Map a step output to a job output
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        uses: fkirc/skip-duplicate-actions@master
        with:
          cancel_others: "true"
          paths: '[ "**.cpp", "**.h", "**.c", "**/CMakeLists.txt", "**/Makefile", "**.hpp", "**.cmake", "build-scripts/**", "tools/clang-tidy-plugin/**", ".github/workflows/clang-tidy.yml", "**/.clang-tidy" ]'
  build:
    needs: skip-duplicates
    if: ${{ needs.skip-duplicates.outputs.should_skip != 'true' }}

    runs-on: ubuntu-24.04
    env:
      CMAKE: 1
      CLANG: /usr/bin/clang++-18
      COMPILER: /usr/bin/clang++-18
      TILES: 1
      SOUND: 1
      BUILD_PATH: "build"
      AFFECTED_FILES: "affected_files.txt"

    steps:
      - name: checkout repository
        uses: actions/checkout@v4

      - name: install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install \
            cmake gettext ninja-build mold ccache jq \
            clang-18 libclang-18-dev llvm-18 llvm-18-dev clang-tidy-18 \
            libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev libsdl2-mixer-dev libpulse-dev libflac-dev

      - name: ensure clang 18 is installed
        run: |
          if [ -z "$(command -v clang++-18)" ]; then
            echo "clang 18 not found"
            exit 1
          fi
          ls -al /usr/lib/llvm-18/lib
          if [ ! -d /usr/lib/llvm-18/lib ]; then
            echo "llvm-18 not found"
            exit 1
          fi

          sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-18 100
          sudo update-alternatives --install /usr/bin/FileCheck FileCheck /usr/bin/FileCheck-18 100
          sudo update-alternatives --install /usr/bin/llvm-config llvm-config /usr/bin/llvm-config-18 100

      - name: Setup ccache
        uses: Chocobo1/setup-ccache-action@v1
        with:
          install_ccache: false
          update_packager_index: false

      - name: add problem matcher
        run: |
          # Enable GitHub actions problem matchers
          # (See https://github.com/actions/toolkit/blob/master/docs/problem-matchers.md)
          echo "::add-matcher::build-scripts/problem-matchers/catch2.json"
          echo "::add-matcher::build-scripts/problem-matchers/debugmsg.json"

      - uses: ammaraskar/gcc-problem-matcher@master

      - uses: denoland/setup-deno@v2

      - name: build clang-tidy plugin
        run: |
          pip install --break-system-packages lit
          bash ./build-scripts/build-clang-tidy-plugin.sh

      # - name: test clang-tidy plugin
      #   run: |
      #     lit -v $BUILD_PATH/tools/clang-tidy-plugin/test
      #     clang-tidy --version

      - name: gather affected files
        run: deno task affected-files ${{ github.event.pull_request.number }} --output "$AFFECTED_FILES"

      - name: run clang-tidy
        run: bash ./build-scripts/run-clang-tidy-plugin.sh

      - name: show most time consuming checks
        if: always()
        run: | # the folder may not exist if there is no file to analyze
          if [ -d clang-tidy-trace ]
          then
            jq -n 'reduce(inputs.profile | to_entries[]) as {$key,$value} ({}; .[$key] += $value) | with_entries(select(.key|contains(".wall"))) | to_entries | sort_by(.value) | reverse | .[0:10] | from_entries' clang-tidy-trace/*.json
          else
            echo "clang-tidy-trace folder not found."
          fi