name: Test

on:
  push:
  pull_request:
  schedule:
    # Weekly, at 5:45 AM on Friday (somewhat randomly chosen).
    - cron: '45 5 * * 5'
  workflow_dispatch:

jobs:
  test:
    strategy:
      fail-fast: false
      matrix:
        platform: [x86, x64]
        cygwin: [0, 1]
        hardlinks: [0, 1]
        os: [ubuntu-18.04, ubuntu-20.04, ubuntu-latest, windows-2016, windows-2019, windows-latest]

        include:
          # Prettier run names.
          - {os: ubuntu-18.04, name: Ubuntu 18.04}
          - {os: ubuntu-20.04, name: Ubuntu 20.04}
          - {os: ubuntu-latest, name: Ubuntu (latest)}
          - {os: windows-2016, name: Windows Server 2016}
          - {os: windows-2019, name: Windows Server 2019}
          - {os: windows-latest, name: Windows Server (latest)}
          - {cygwin: 1, name: Cygwin}
        exclude:
          # No Cygwin on Ubuntu.
          - {os: ubuntu-18.04, cygwin: 1}
          - {os: ubuntu-20.04, cygwin: 1}
          - {os: ubuntu-latest, cygwin: 1}
          # Cygwin is the same on all Windows Server versions.
          - {os: windows-2016, cygwin: 1}
          - {os: windows-2019, cygwin: 1}
          # Only test hardlinks on Cygwin.
          - {cygwin: 0, hardlinks: 1}

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

    name: '${{ matrix.name }} / ${{ matrix.platform }} / Hardlinks: ${{ matrix.hardlinks }}'

    defaults:
      run:
        shell: pwsh

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Clean up PATH
        uses: egor-tensin/cleanup-path@v1
        if: runner.os == 'Windows'

      - name: Install Cygwin
        uses: egor-tensin/setup-cygwin@v3
        if: matrix.cygwin

      - name: Set up MinGW
        id: setup
        uses: ./
        with:
          platform: '${{ matrix.platform }}'
          cygwin: '${{ matrix.cygwin }}'
          cc: 1
          hardlinks: '${{ matrix.hardlinks }}'

      - name: Build foo.exe
        run: |
          $flags = '-std=c++14','-o','foo','foo.cpp'
          & '${{ steps.setup.outputs.gxx }}' $flags

      - name: Run foo.exe
        run: |
          $expected = @"
          Doing something #1
          Doing something #2
          Doing something #3
          "@

          $actual = & (Join-Path . foo.exe)
          $actual = $actual -join [Environment]::NewLine

          $($actual -eq $expected) -or $(throw @"
          Unexpected output:
          $actual
          "@)
        if: runner.os == 'Windows'

      # Is this really the most stable piece of `gcc --version` output?
      - name: Check cc/c++
        run: |
          echo (Get-Command cc).Path
          $cc = & cc --version
          echo $cc
          $($cc | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `cc --version` output")
          echo (Get-Command c++).Path
          $cxx = & c++ --version
          echo $cxx
          $($cxx | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `c++ --version` output")
        if: '!matrix.cygwin || matrix.hardlinks'

      - name: Check cc/c++ on Cygwin
        run: |
          $cc = bash.exe --login -o errexit -c 'cc --version'
          echo $cc
          $($cc | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `cc --version` output")
          $cxx = bash.exe --login -o errexit -c 'c++ --version'
          echo $cxx
          $($cxx | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `c++ --version` output")
        if: matrix.cygwin && !matrix.hardlinks