name: CI

on: [push, pull_request]

env:
  CI: "ON" # We can detect this in the build system and other vendors implement it
  HOMEBREW_NO_ANALYTICS: "ON" # Make Homebrew installation a little quicker
  HOMEBREW_NO_AUTO_UPDATE: "ON"
  HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK: "ON"
  HOMEBREW_NO_GITHUB_API: "ON"
  HOMEBREW_NO_INSTALL_CLEANUP: "ON"
  RUST_BACKTRACE: "full" # Make Rust print full backtrace on error

jobs:
  Build:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        gcc_v: [9] # Version of GFortran we want to use.
    env:
      FC: gfortran
      GCC_V: ${{ matrix.gcc_v }}

    steps:
    - name: Checkout code
      uses: actions/checkout@v1

    - name: Install GFortran macOS
      if: contains(matrix.os, 'macos')
      run: |
          ln -s /usr/local/bin/gfortran-${GCC_V} /usr/local/bin/gfortran
          which gfortran-${GCC_V}
          which gfortran

    - name: Install Haskell macOS
      if: contains(matrix.os, 'macos')
      run: |
          mkdir /Users/runner/.local/bin
          curl -L https://gist.github.com/certik/0e35f35753ae76f0f575d9b3d3f53633/raw/4cde02cc9215635c9401c2257a46be319e7ab6dd/osx-x86_64.tar.gz | tar xz --strip-components=1 --include '*/stack' -C /Users/runner/.local/bin

    - name: Install Haskell Linux
      if: contains(matrix.os, 'ubuntu')
      uses: mstksg/setup-stack@v1

    - name: Install Haskell Windows
      if: contains(matrix.os, 'windows')
      run: |
          (New-Object System.Net.WebClient).DownloadFile("https://get.haskellstack.org/stable/windows-x86_64.zip", "windows-x86_64.zip")
          mkdir stack-tmp
          cd stack-tmp
          unzip ..\windows-x86_64.zip
          copy stack.exe "C:\Program Files\Git\usr\bin"
          cd ..

    - name: Install GFortran Linux
      if: contains(matrix.os, 'ubuntu')
      run: |
        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-${GCC_V} 100 \
        --slave /usr/bin/gfortran gfortran /usr/bin/gfortran-${GCC_V} \
        --slave /usr/bingcov gcov /usr/bin/gcov-${GCC_V}

    - name: Build Haskell fpm
      run: |
        cd bootstrap
        stack build
        stack install

    - name: put fpm to PATH (macOS)
      if: contains(matrix.os, 'macos')
      run: |
          cp /Users/runner/.local/bin/fpm /usr/local/bin

    - name: put fpm to PATH (Windows)
      if: contains(matrix.os, 'windows')
      run: |
          copy "C:\Users\runneradmin\AppData\Roaming\local\bin\fpm.exe" "C:\Program Files\Git\usr\bin"

    - name: Run tests on Haskell fpm
      run: |
        cd bootstrap
        stack test

    - name: Build and run Fortran fpm
      run: |
        cd fpm
        fpm build
        fpm run