name: CI

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

jobs:
  build:
    name: ${{ matrix.name }}
    runs-on: ${{ matrix.os }}
    defaults:
      run:
        shell: ${{ matrix.shell || 'sh' }}
    strategy:
      matrix:
        include:
        - name: Ubuntu
          os: ubuntu-latest
        - name: MacOS
          os: macos-latest
        - name: Windows
          os: windows-latest
          shell: msys2 {0}
      # complete all jobs
      fail-fast: false
    steps:
    - name: Install MSYS2 (Windows)
      if: matrix.os == 'windows-latest'
      uses: msys2/setup-msys2@v2
      with:
        path-type: inherit
        install: curl unzip make mingw-w64-x86_64-gcc mingw-w64-x86_64-gmp
    - name: Install Elan (Windows)
      if: matrix.os == 'windows-latest'
      run: |
        curl -sSL https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh > elan-init.sh
        ./elan-init.sh -y
        cygpath -w "$USERPROFILE/.elan/bin" >> $GITHUB_PATH
    - name: Install Elan (Ubuntu)
      if: matrix.os == 'ubuntu-latest'
      run: |
        curl -sSL https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh > elan-init.sh
        chmod +x elan-init.sh
        ./elan-init.sh -y
        echo "$HOME/.elan/bin" >> $GITHUB_PATH
    - name: Install Elan (MacOS)
      if: matrix.os == 'macOS-latest'
      run: brew install elan
    - name: Checkout
      uses: actions/checkout@v2
    - name: Check Lean
      run: lean --version
    - name: Build & Time
      run: ./time.sh -j4
    - name: Upload Build
      continue-on-error: true
      uses: actions/upload-artifact@v2
      with:
        name: Build
        path: build
    - name: Check Lake
      run: make -C examples check-lake
    - name: Test Examples
      run: make -C examples test -j4
    - name: Time Bootstrap
      run: make -C examples time-bootstrap
    - name: Check Bootstrap
      run: make -C examples check-bootstrap
    - name: Test Bootstrapped Examples
      run: make -C examples test-bootstrapped -j4