clang-tidy.yml

name: clang-tidy-check

on:
  pull_request:
    types: [opened, synchronize]
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: clang-tidy-${{ github.ref }}
  cancel-in-progress: true

jobs:
  tidy-check:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: recursive

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y clang-tidy cmake libcurl4-openssl-dev libssl-dev

      - name: Configure CMake
        run: |
          cmake -B build \
            -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
            -DBUILD_ONLY="s3" \
            -DENABLE_TESTING=OFF

      - name: Get changed files
        id: changed
        env:
          BASE_BRANCH: "${{ github.event.pull_request.base.ref }}"
          HEAD_BRANCH: "${{ github.event.pull_request.head.ref }}"
        run: |
          git fetch origin "$BASE_BRANCH"
          git fetch origin "$HEAD_BRANCH"
          git diff --name-only --diff-filter=d origin/$BASE_BRANCH...origin/$HEAD_BRANCH \
            | grep -E '\.(cpp|cc|cxx|c|h|hh|hpp)$' \
            | grep -v '^generated/' > changed_files.txt || true
          echo "count=$(wc -l < changed_files.txt | tr -d ' ')" >> "$GITHUB_OUTPUT"

      - name: Run clang-tidy
        if: steps.changed.outputs.count != '0'
        run: |
          echo "Running clang-tidy on changed files:"
          cat changed_files.txt
          xargs -a changed_files.txt clang-tidy -p build --warnings-as-errors='performance-*'