name: Build

on:
  push:
    branches:
      - '*'
  pull_request:

jobs:
  test:
    name: Test

    strategy:
      matrix:
        platform: [
          ubuntu-latest,
          macos-latest,
          windows-latest
        ]

    runs-on: ${{ matrix.platform }}
    timeout-minutes: 30

    steps:
    - name: "Checkout Repository"
      uses: actions/checkout@v1

    - name: Install Rustup (macOS)
      run: |
        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
        echo "$HOME/.cargo/bin" >> $GITHUB_PATH
      if: runner.os == 'macOS'

    - name: Set Rustup profile to minimal
      run: rustup set profile minimal

    - name: "Switch to Rust nightly"
      run: rustup default nightly

    - name: "Print Rust Version"
      run: |
        rustc -Vv
        cargo -Vv

    - name: "Install build tools"
      run: cargo install cargo-make cargo-binutils

    - name: "Prepare packages (Linux)"
      run: |
        sudo apt install software-properties-common
        sudo add-apt-repository ppa:jacob/virtualisation
        sudo apt update
      if: runner.os == 'Linux'

    - name: "Install dev libraries (Linux)"
      run: sudo apt install libudev-dev
      if: runner.os == 'Linux'

    - name: "Validate rust-lld"
      run: |
        which rust-lld || echo "Not found"
        otool -L ~/.cargo/bin/rust-lld
      if: runner.os == 'macOS'

    - name: "Print Tools Version"
      run: |
        cargo make --version
        cargo objcopy --version

    - name: "Deny Warnings"
      run: cargo make build
      env:
        RUSTFLAGS: "-D warnings"

    - name: Install QEMU (Linux)
      run: |
        sudo apt install qemu-system-aarch64
      if: runner.os == 'Linux'

    - name: Install QEMU (macOS)
      run: brew install qemu
      if: runner.os == 'macOS'
      env:
        HOMEBREW_NO_AUTO_UPDATE: 1
        HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK: 1
        HOMEBREW_NO_INSTALL_CLEANUP: 1

    - name: Install Scoop (Windows)
      run: |
        Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
        echo "$HOME\scoop\shims" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
      if: runner.os == 'Windows'
      shell: pwsh

    - name: Add custom Scoop bucket (Windows)
      run: |
        scoop bucket add scoop-for-ci https://github.com/metta-systems/scoop-for-ci
      if: runner.os == 'Windows'
      shell: pwsh

    - name: Install QEMU (Windows)
      run: scoop install qemu-510
      if: runner.os == 'Windows'
      shell: pwsh

    - name: "Print QEMU Version"
      run: qemu-system-aarch64 --version

    - name: 'Build kernel'
      run: cargo make build

    - name: 'Run tests (macOS)'
      run: cargo make test
      if: runner.os == 'macOS'

    - name: 'Run tests (other OSes)'
      run: env QEMU_MACHINE=raspi3 cargo make test
      if: runner.os != 'macOS'

  check_formatting:
    name: "Check Formatting"
    runs-on: ubuntu-latest
    timeout-minutes: 2
    steps:
    - uses: actions/checkout@v1
    - run: rustup toolchain install nightly --profile minimal --component rustfmt
    - run: cargo +nightly fmt -- --check

  clippy:
    name: "Clippy"
    strategy:
      matrix:
        features: [
          "",
          "noserial",
          "qemu",
          "noserial,qemu",
          "jtag",
          "noserial,jtag",
          # jtag and qemu together don't make much sense
        ]
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
    - uses: actions/checkout@v1
    - run: sudo apt update
    - run: sudo apt install libudev-dev
    - run: rustup toolchain install nightly
    - run: cargo install cargo-make
    - run: env CLIPPY_FEATURES=${{ matrix.features }} cargo make clippy