compile_lambda_rs.yml

name: compile & test lambda-rs (wgpu)

on:
  push:
    branches: [main]

  pull_request:
    branches: [main]

  workflow_dispatch:

defaults:
  run:
    shell: bash

jobs:
  build_and_test:
    name: Build lambda-rs on ${{ matrix.os }} with features ${{ matrix.features }}.
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-vulkan"
          - os: ubuntu-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-vulkan,lambda-rs/audio-output-device"
          - os: windows-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-dx12"
          - os: windows-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-dx12,lambda-rs/audio-output-device"
          - os: macos-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-metal"
          - os: macos-latest
            rustup-toolchain: "stable"
            features: "lambda-rs/with-metal,lambda-rs/audio-output-device"

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Cache cargo builds
        uses: Swatinem/rust-cache@v2

      - name: Run the projects setup.
        run: ./scripts/setup.sh --within-ci true

      - name: Install Linux deps for winit/wgpu
        if: ${{ matrix.os == 'ubuntu-latest' }}
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            pkg-config libx11-dev libxcb1-dev libxcb-render0-dev \
            libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev \
            libwayland-dev libudev-dev \
            libvulkan-dev libvulkan1 mesa-vulkan-drivers vulkan-tools

      - name: Install Linux deps for audio
        if: ${{ matrix.os == 'ubuntu-latest' && contains(matrix.features, 'lambda-rs/audio-output-device') }}
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libasound2-dev

      - name: Configure Vulkan (Ubuntu)
        if: ${{ matrix.os == 'ubuntu-latest' }}
        run: |
          echo "WGPU_BACKEND=vulkan" >> "$GITHUB_ENV"
          # Prefer Mesa's software Vulkan (lavapipe) to ensure headless availability.
          # The exact ICD filename can differ across Ubuntu images, so discover it.
          LVP_ICD="$(
            if [[ -d /usr/share/vulkan/icd.d ]]; then
              find /usr/share/vulkan/icd.d -maxdepth 1 -type f \
                \( -name '*lvp_icd*.json' -o -name '*lavapipe*.json' \) \
                -print 2>/dev/null | head -n1
            fi
          )"
          if [[ -z "$LVP_ICD" ]]; then
            echo "lavapipe Vulkan ICD not found under /usr/share/vulkan/icd.d" >&2
            ls -la /usr/share/vulkan/icd.d || true
          else
            echo "Using lavapipe ICD: $LVP_ICD"
            echo "VK_ICD_FILENAMES=$LVP_ICD" >> "$GITHUB_ENV"
          fi
          echo "LAMBDA_REQUIRE_GPU_ADAPTER=1" >> "$GITHUB_ENV"
          vulkaninfo --summary || true

      # Windows runners already include the required toolchain for DX12 builds.

      - name: Obtain rust toolchain for ${{ matrix.rustup-toolchain }}
        run: |
          rustup toolchain install ${{ matrix.rustup-toolchain }}
          rustup default ${{ matrix.rustup-toolchain }}

      - name: Check formatting
        run: |
          rustup component add rustfmt --toolchain nightly-2025-09-26
          cargo +nightly-2025-09-26 fmt --all --check

      - name: Build workspace
        if: ${{ contains(matrix.features, 'lambda-rs/audio-output-device') }}
        run: cargo build --workspace --bins --features ${{ matrix.features }}

      - name: Build workspace (exclude audio tools)
        if: ${{ !contains(matrix.features, 'lambda-rs/audio-output-device') }}
        run: |
          cargo build --workspace \
            --exclude lambda-audio-tool \
            --exclude lambda-demos-audio \
            --bins \
            --features ${{ matrix.features }}

      - name: Build examples (lambda-rs)
        run: cargo build -p lambda-rs --examples --features ${{ matrix.features }}

      - name: Test workspace
        if: ${{ contains(matrix.features, 'lambda-rs/audio-output-device') }}
        run: cargo test --workspace --features ${{ matrix.features }}

      - name: Test workspace (exclude audio tools)
        if: ${{ !contains(matrix.features, 'lambda-rs/audio-output-device') }}
        run: |
          cargo test --workspace \
            --exclude lambda-audio-tool \
            --exclude lambda-demos-audio \
            --features ${{ matrix.features }}

      - uses: actions/setup-ruby@v1
      - name: Send Webhook Notification for build status.
        if: ${{ github.ref == 'refs/heads/main' }}
        env:
          JOB_STATUS: ${{ job.status }}
          WEBHOOK_URL: ${{ secrets.LAMBDA_BUILD_WEBHOOK }}
          HOOK_OS_NAME: ${{ runner.os }}
          WORKFLOW_NAME: ${{ github.workflow }}
          JOB_ID: ${{ github.job }}
        run: |
          git clone https://github.com/dhinakg/github-actions-discord-webhook.git webhook
          bash webhook/send.sh $JOB_STATUS $WEBHOOK_URL
        shell: bash