kcp-sys/.github/workflows/rust.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  # ──────────────────────────────────────────────
  # Lint: rustfmt + clippy
  # ──────────────────────────────────────────────
  lint:
    name: Lint
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy

      - uses: Swatinem/rust-cache@v2

      - name: Check formatting
        run: cargo fmt --check

      - name: Clippy
        run: cargo clippy -- -D warnings

  # ──────────────────────────────────────────────
  # Native build + test matrix
  # 6 runners × 2 profiles = 12 jobs
  # ──────────────────────────────────────────────
  build:
    name: ${{ matrix.name }} (${{ matrix.profile }})
    runs-on: ${{ matrix.runner }}
    strategy:
      fail-fast: false
      matrix:
        include:
          # Linux x64
          - name: Linux x64
            runner: ubuntu-24.04
            target: x86_64-unknown-linux-gnu
            profile: debug
          - name: Linux x64
            runner: ubuntu-24.04
            target: x86_64-unknown-linux-gnu
            profile: release

          # Linux arm64
          - name: Linux arm64
            runner: ubuntu-24.04-arm
            target: aarch64-unknown-linux-gnu
            profile: debug
          - name: Linux arm64
            runner: ubuntu-24.04-arm
            target: aarch64-unknown-linux-gnu
            profile: release

          # Windows x64
          - name: Windows x64
            runner: windows-latest
            target: x86_64-pc-windows-msvc
            profile: debug
          - name: Windows x64
            runner: windows-latest
            target: x86_64-pc-windows-msvc
            profile: release

          # Windows arm64
          - name: Windows arm64
            runner: windows-11-arm
            target: aarch64-pc-windows-msvc
            profile: debug
          - name: Windows arm64
            runner: windows-11-arm
            target: aarch64-pc-windows-msvc
            profile: release

          # macOS x64 (Intel)
          - name: macOS x64
            runner: macos-15-intel
            target: x86_64-apple-darwin
            profile: debug
          - name: macOS x64
            runner: macos-15-intel
            target: x86_64-apple-darwin
            profile: release

          # macOS arm64 (Apple Silicon)
          - name: macOS arm64
            runner: macos-15
            target: aarch64-apple-darwin
            profile: debug
          - name: macOS arm64
            runner: macos-15
            target: aarch64-apple-darwin
            profile: release

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.target }}-${{ matrix.profile }}

      # Linux: install libclang for bindgen
      - name: Install libclang (Linux)
        if: runner.os == 'Linux'
        run: sudo apt-get update && sudo apt-get install -y libclang-dev

      - name: Build
        run: cargo build --target ${{ matrix.target }} --verbose ${{ matrix.profile == 'release' && '--release' || '' }}

      - name: Test
        run: cargo test --target ${{ matrix.target }} --verbose ${{ matrix.profile == 'release' && '--release' || '' }}

      - name: Install CMake 4
        uses: step-security/get-cmake@v4
        with:
          cmakeVersion: "^4.0.0"

      - name: Build KCP native test
        run: |
          cmake -S kcp -B kcp/build -DBUILD_TESTING=ON
          cmake --build kcp/build --target kcp_test

  # ──────────────────────────────────────────────
  # Cross-compilation via zigbuild (musl targets)
  # 3 targets × 2 profiles = 6 jobs
  # ──────────────────────────────────────────────
  cross:
    name: Cross ${{ matrix.target }} (${{ matrix.profile }})
    runs-on: ubuntu-24.04
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: aarch64-unknown-linux-musl
            profile: debug
          - target: aarch64-unknown-linux-musl
            profile: release
          - target: x86_64-unknown-linux-musl
            profile: debug
          - target: x86_64-unknown-linux-musl
            profile: release
          - target: riscv64gc-unknown-linux-musl
            profile: debug
          - target: riscv64gc-unknown-linux-musl
            profile: release

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - uses: mlugg/setup-zig@v2

      - uses: Swatinem/rust-cache@v2
        with:
          key: cross-${{ matrix.target }}-${{ matrix.profile }}

      - name: Install libclang and cargo-zigbuild
        run: |
          sudo apt-get update && sudo apt-get install -y libclang-dev
          cargo install cargo-zigbuild

      - name: Build (zigbuild)
        run: cargo zigbuild --target ${{ matrix.target }} --verbose ${{ matrix.profile == 'release' && '--release' || '' }}