rust.yml

name: Rust CI

on:
  pull_request:
    paths-ignore:
      - '**.md'
  push:
    paths-ignore:
      - '**.md'

env:
  RUST_LOG: info
  RUST_BACKTRACE: 1

jobs:
  rust:
    name: Rust on ${{ matrix.os }} with CUDA ${{ matrix.cuda }}
    runs-on: ${{ matrix.os }}
    env:
      LLVM_LINK_STATIC: 1
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-20.04
            target: x86_64-unknown-linux-gnu
            cuda: '11.2.2'
            linux-local-args: ["--toolkit"]
          - os: ubuntu-24.04
            target: x86_64-unknown-linux-gnu
            cuda: '12.8.1'
            linux-local-args: ["--toolkit"]
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            cuda: '11.2.2'
            linux-local-args: []
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            cuda: '12.8.1'
            linux-local-args: []

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Install CUDA
        uses: Jimver/cuda-toolkit@v0.2.22
        id: cuda-toolkit
        with:
          cuda: ${{ matrix.cuda }}
          linux-local-args: ${{ toJson(matrix.linux-local-args) }}

      - name: Verify CUDA installation
        run: nvcc --version

      - name: List CUDA_PATH files (Linux)
        if: runner.os == 'Linux'
        run: find "$CUDA_PATH" -type f

      - name: List CUDA_PATH files (Windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: Get-ChildItem -Path $env:CUDA_PATH -Recurse | ForEach-Object { $_.FullName }

      # random command that forces rustup to install stuff in rust-toolchain
      - name: Install rust-toolchain
        run: cargo version

      - name: Add rustup components
        run: rustup component add rustfmt clippy

      - name: Install LLVM 7
        if: contains(matrix.os, 'ubuntu')
        run: |
          mkdir -p ~/llvm7 && cd ~/llvm7
          wget http://mirrors.kernel.org/ubuntu/pool/universe/l/llvm-toolchain-7/llvm-7_7.0.1-12_amd64.deb \
               http://mirrors.kernel.org/ubuntu/pool/universe/l/llvm-toolchain-7/libllvm7_7.0.1-12_amd64.deb \
               http://mirrors.kernel.org/ubuntu/pool/universe/l/llvm-toolchain-7/llvm-7-runtime_7.0.1-12_amd64.deb
          sudo apt-get update
          sudo apt-get install -y ./*.deb
          sudo ln -s /usr/bin/llvm-config-7 /usr/local/bin/llvm-config

      - name: Load Rust Cache
        uses: Swatinem/rust-cache@v1

      - name: Rustfmt
        if: contains(matrix.os, 'ubuntu')
        run: cargo fmt --all -- --check

      - name: Build
        run: cargo build --workspace --exclude "optix" --exclude "path_tracer" --exclude "denoiser" --exclude "add" --exclude "ex*"

      # Don't currently test because many tests rely on the system having a CUDA GPU
      # - name: Test
      #   run: cargo test --workspace

      - name: Clippy
        if: contains(matrix.os, 'ubuntu')
        env:
          RUSTFLAGS: -Dwarnings
        run: cargo clippy --workspace --exclude "optix" --exclude "path_tracer" --exclude "denoiser" --exclude "add" --exclude "ex*"

      - name: Check documentation
        env:
          RUSTDOCFLAGS: -Dwarnings
        run: cargo doc --workspace --all-features --document-private-items --no-deps --exclude "optix" --exclude "path_tracer" --exclude "denoiser" --exclude "add" --exclude "ex*"