ci.yml

name: CI

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

env:
  CARGO_TERM_COLOR: always

jobs:
  hygiene:
    name: Hygiene
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Check public tree contains no dev-meta paths
      shell: bash
      run: ./scripts/check_tree_clean.sh

  test:
    name: Test
    needs: hygiene
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        rust: [stable]
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@stable
      with:
        toolchain: ${{ matrix.rust }}
        components: rustfmt, clippy

    - name: Install Linux dependencies (GUI + audio)
      if: runner.os == 'Linux'
      run: |
        sudo apt-get update -qq
        sudo apt-get install -y --no-install-recommends \
          libxkbcommon-dev \
          libwayland-dev \
          libx11-dev libxcursor-dev libxrandr-dev libxi-dev \
          libvulkan-dev mesa-vulkan-drivers \
          libfontconfig1-dev libfreetype6-dev \
          libegl1-mesa-dev \
          libasound2-dev

    - name: Cache cargo registry
      uses: actions/cache@v4
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v4
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo build
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

    - name: Run cargo check
      run: cargo check --verbose

    - name: Run cargo fmt check
      run: cargo fmt --all -- --check

    - name: Run cargo clippy
      run: cargo clippy --all-targets --all-features -- -D warnings

    - name: Run cargo test
      run: cargo test --verbose

  build:
    name: Build Release
    needs: hygiene
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        include:
          - os: ubuntu-latest
            artifact_name: tslime
            asset_name: tslime-linux-x86_64
          - os: macos-latest
            artifact_name: tslime
            asset_name: tslime-macos-x86_64
          - os: windows-latest
            artifact_name: tslime.exe
            asset_name: tslime-windows-x86_64.exe

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@stable

    - name: Cache cargo registry
      uses: actions/cache@v4
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v4
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo build
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

    - name: Build release binary
      run: cargo build --release --verbose

    - name: Upload artifact
      uses: actions/upload-artifact@v4
      with:
        name: ${{ matrix.asset_name }}
        path: target/release/${{ matrix.artifact_name }}

  gui-build:
    name: GUI Build
    needs: hygiene
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        include:
          - os: ubuntu-latest
            artifact_name: tslime
            asset_name: tslime-gui-linux-x86_64
          - os: macos-latest
            artifact_name: tslime
            asset_name: tslime-gui-macos
          - os: windows-latest
            artifact_name: tslime.exe
            asset_name: tslime-gui-windows.exe

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@stable

    - name: Install Linux GUI dependencies
      if: runner.os == 'Linux'
      run: |
        sudo apt-get update -qq
        sudo apt-get install -y --no-install-recommends \
          libxkbcommon-dev \
          libwayland-dev \
          libx11-dev libxcursor-dev libxrandr-dev libxi-dev \
          libvulkan-dev mesa-vulkan-drivers \
          libfontconfig1-dev libfreetype6-dev \
          libegl1-mesa-dev

    - name: Cache cargo registry
      uses: actions/cache@v4
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry-gui-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v4
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-gui-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo build
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-gui-${{ hashFiles('**/Cargo.lock') }}

    - name: Build GUI binary
      run: cargo build --release --features gui --verbose

    - name: Upload artifact
      uses: actions/upload-artifact@v4
      with:
        name: ${{ matrix.asset_name }}
        path: target/release/${{ matrix.artifact_name }}

  benchmarks:
    name: Benchmarks
    needs: hygiene
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@stable

    - name: Cache cargo registry
      uses: actions/cache@v4
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v4
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo build
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-bench-${{ hashFiles('**/Cargo.lock') }}

    - name: Run benchmarks
      run: cargo bench --verbose

    - name: Upload benchmark results
      uses: actions/upload-artifact@v4
      with:
        name: benchmarks
        path: target/criterion/

    - name: Check binary size
      run: |
        # cargo bench leaves a bench-profile binary (no strip/LTO) in
        # target/release; build the real release binary before measuring.
        cargo build --release
        size target/release/tslime
        SIZE=$(stat -c%s target/release/tslime)
        # Headroom over the ~3.1MB Linux release binary; this artifact is a
        # smoke check, not the shipped binary, so the bound is intentionally loose.
        MAX_SIZE=4000000
        if [ $SIZE -gt $MAX_SIZE ]; then
          echo "Binary size $SIZE exceeds $MAX_SIZE limit"
          exit 1
        fi
        echo "Binary size $SIZE is under $MAX_SIZE limit"