name: Build Crate

on:
  pull_request:
    paths:
      - 'index/**.toml'

jobs:

  build:
    name: Build crate on ${{ matrix.os }}::${{ matrix.tag}}

    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: 
          - macos-latest
          - ubuntu-latest
          - windows-latest
        tag:
          - centos-latest-community-2019
          - community-current          
          - debian-stable          
          - ubuntu-lts
        exclude: # inclusions don't allow to add arrays of values to a scenario
          - os: macos-latest
            tag: centos-latest-community-2019
          - os: macos-latest
            tag: community-current
          - os: macos-latest
            tag: debian-stable
          - os: windows-latest
            tag: centos-latest-community-2019
          - os: windows-latest
            tag: community-current
          - os: windows-latest
            tag: debian-stable

    steps:
    - name: Check out alire-index
      uses: actions/checkout@v2
      with:
        fetch-depth: 3 # Needed to be able to diff and obtain changed files

    - name: Set up GNAT toolchain (FSF)
      if: matrix.os == 'ubuntu-latest'
      uses: ada-actions/toolchain@dev
      with:
        distrib: fsf # faster install?

    - name: Set up GNAT toolchain (Community)
      if: matrix.os != 'ubuntu-latest'
      uses: ada-actions/toolchain@dev
      with:
        distrib: community

    - name: Set up `alr`
      uses: mosteo/setup-alire@exp

    - name: Test crate (Linux)
      if: matrix.os == 'ubuntu-latest' # docker testing only for linuxes
      uses: mosteo/actions@docker-run/v1
      with:
        image: alire/gnat:${{matrix.tag}}
        command: scripts/gh-build-crate.sh

    - name: Test crate (Windows/MacOS)
      if: matrix.os != 'ubuntu-latest' # native testing in Windows/MacOS
      run: scripts/gh-build-crate.sh
      shell: bash