ci-lint.yml

name: CI Lint

on:
  workflow_call:

jobs:
  lint-cpp:
    name: C++ Lint (clang-format + clang-tidy)
    runs-on: ubuntu-22.04
    env:
      CARGO_TERM_COLOR: always
    steps:
      - name: Checkout (with siderust submodule)
        uses: actions/checkout@v4
        with:
          submodules: recursive
          fetch-depth: 0

      - name: Install system dependencies
        shell: bash
        run: |
          set -euo pipefail
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            cmake \
            ninja-build \
            curl \
            clang-tidy

      - name: Install official qtty-cpp and tempoch-cpp packages
        shell: bash
        run: scripts/install-official-cpp-deps.sh

      - name: Install clang-format 18
        shell: bash
        run: |
          set -euo pipefail
          wget -qO /tmp/llvm.sh https://apt.llvm.org/llvm.sh
          sudo bash /tmp/llvm.sh 18
          sudo apt-get install -y --no-install-recommends clang-format-18
          sudo ln -sf /usr/bin/clang-format-18 /usr/local/bin/clang-format
          clang-format --version

      - name: Set up Rust (stable)
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable

      - name: Configure (CMake, compile commands)
        shell: bash
        run: |
          set -euo pipefail
          cmake -S . -B build -G Ninja -DSIDERUST_BUILD_DOCS=OFF -DCMAKE_EXPORT_COMPILE_COMMANDS=ON

      - name: clang-format check
        shell: bash
        run: |
          set -euo pipefail
          mapfile -t files < <(git ls-files '*.hpp' '*.cpp')
          if [ ${#files[@]} -eq 0 ]; then
            echo "No C++ files found."
            exit 0
          fi
          clang-format --dry-run --Werror "${files[@]}"

      - name: clang-tidy check
        shell: bash
        run: |
          set -euo pipefail
          mapfile -t cpp_files < <(git ls-files '*.cpp')
          if [ ${#cpp_files[@]} -eq 0 ]; then
            echo "No C++ source files found."
            exit 0
          fi
          for file in "${cpp_files[@]}"; do
            echo "Running clang-tidy on ${file}"
            clang-tidy -p build --warnings-as-errors='*' "${file}"
          done