name: CI

on: 
  push:
  pull_request:
  release:
    types: [published]

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.
        include:
        - os: ubuntu-latest
          STACK_CACHE: "/home/runner/.stack/"
          STACK_CACHE_VERSION: ""
          GET_VERSION_CMD: echo ${{ github.ref }} | cut -dv -f2
          CHECK_VERSION_CMD: grep $(cat fpm_version)
          RELEASE_CMD: "fpm run --flag --static --flag -g --flag -fbacktrace --flag -O3 --runner cp -- fpm-v$(cat fpm_version)-linux-x86_64"
          BOOTSTRAP_RELEASE_CMD: cp /home/runner/.local/bin/fpm fpm-bootstrap-v$(cat fpm_version)-linux-x86_64
          HASH_CMD: ls fpm-*|xargs -i{} sh -c 'sha256sum $1 > $1.sha256' -- {}

        - os: macos-latest
          STACK_CACHE: |
           /Users/runner/.stack/snapshots
           /Users/runner/.stack/setup-exe-src
          STACK_CACHE_VERSION: "v2"
          GET_VERSION_CMD: echo ${{ github.ref }} | cut -dv -f2
          CHECK_VERSION_CMD: grep $(cat fpm_version)
          RELEASE_CMD: "fpm run --flag -g --flag -fbacktrace --flag -O3 --runner cp -- fpm-v$(cat fpm_version)-macos-x86_64"
          BOOTSTRAP_RELEASE_CMD: cp /Users/runner/.local/bin/fpm fpm-bootstrap-v$(cat fpm_version)-macos-x86_64
          HASH_CMD: ls fpm-*|xargs -I{} sh -c 'shasum -a 256 $1 > $1.sha256' -- {}

        - os: windows-latest
          STACK_CACHE: |
           C:\Users\runneradmin\AppData\Roaming\stack
           C:\Users\runneradmin\AppData\Local\Programs\stack
          STACK_CACHE_VERSION: "v2"
          GET_VERSION_CMD: ("${{ github.ref }}" -Split "v")[1]
          CHECK_VERSION_CMD: Select-String -Pattern Version | Where-Object { if ($_ -like -join("*",(Get-Content fpm_version),"*")) {echo $_} else {Throw} }
          RELEASE_CMD: fpm run --flag --static --flag -g --flag -fbacktrace --flag -O3 --runner copy -- (-join("fpm-v",(Get-Content fpm_version),"-windows-x86_64.exe"))
          BOOTSTRAP_RELEASE_CMD: copy C:\Users\runneradmin\AppData\Roaming\local\bin\fpm.exe (-join("fpm-bootstrap-v",(Get-Content fpm_version),"-windows-x86_64.exe"))
          HASH_CMD: Get-ChildItem -File -Filter "fpm-*" | Foreach-Object {echo (Get-FileHash -Algorithm SHA256 $PSItem | Select-Object hash | Format-Table -HideTableHeaders | Out-String) > (-join($PSItem,".sha256"))}

    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 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: Get Time
      id: time
      uses: nanzm/get-time-action@v1.0
      with:
        format: 'YYYY-MM'
          
    - name: Setup github actions cache
      id: cache
      uses: actions/cache@v2
      with:
        path: ${{matrix.STACK_CACHE}}
        key: ${{ runner.os }}-${{ steps.time.outputs.time }}${{matrix.STACK_CACHE_VERSION}}

    - 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: put fpm to PATH (Linux)
      if: contains(matrix.os, 'ubuntu')
      run: |
          sudo cp /home/runner/.local/bin/fpm /usr/local/bin
          
    - name: Run tests on Haskell fpm
      run: |
        cd bootstrap
        stack test

    - name: Build and run Fortran fpm (Linux / macOS)
      if: contains(matrix.os, 'ubuntu') || contains(matrix.os, 'macos')
      run: |
        ci/run_tests.sh

    - name: Build and run Fortran fpm (Windows)
      if: contains(matrix.os, 'windows')
      run: |
        ci\run_tests.bat

    # ----- Upload binaries if creating a release -----
    - name: Check that fpm --version matches release tag
      if: github.event_name == 'release'
      run: |
        cd fpm
        ${{ matrix.GET_VERSION_CMD }} > fpm_version
        fpm run -- "--version" | ${{ matrix.CHECK_VERSION_CMD }}

    - name: Stage release files for upload
      if: github.event_name == 'release'
      run: |
        cd fpm
        ${{ matrix.RELEASE_CMD }}
        ${{ matrix.BOOTSTRAP_RELEASE_CMD }}
        ${{ matrix.HASH_CMD }}
    
    - name: Make executable
      if: github.event_name == 'release' && (contains(matrix.os, 'ubuntu') || contains(matrix.os, 'macos'))
      run: chmod u+x fpm/fpm-v*
         
    - name: Upload assets
      if: github.event_name == 'release'
      uses: svenstaro/upload-release-action@v2
      with:
        repo_token: ${{ secrets.GITHUB_TOKEN }}
        file: fpm/fpm-*
        file_glob: true
        tag: ${{ github.ref }}
        overwrite: true