name: linux

concurrency:
  group: linux-${{ github.head_ref }}
  cancel-in-progress: true

on:
  push:
    branches:
      - master
      # Stable branches such as 0.56 or the eventual 1.0
      - '[0-9]+.[0-9]+'
    paths:
      - "mesonbuild/**"
      - "test cases/**"
      - "unittests/**"
      - ".github/workflows/images.yml"
      - ".github/workflows/os_comp.yml"
      - "run_unittests.py"
  pull_request:
    paths:
      - "mesonbuild/**"
      - "test cases/**"
      - "unittests/**"
      - ".github/workflows/images.yml"
      - ".github/workflows/os_comp.yml"
      - "run_unittests.py"

jobs:
  arch:
    name: ${{ matrix.cfg.name }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        cfg:
          - { name: Arch Linux,       id: arch     }
          - { name: CUDA (on Arch),   id: cuda     }
          - { name: Fedora,           id: fedora   }
          - { name: OpenSUSE,         id: opensuse }
          - { name: Ubuntu Bionic,    id: bionic   }
    container: mesonbuild/${{ matrix.cfg.id }}:latest
    env:
      MESON_CI_JOBNAME: linux-${{ matrix.cfg.id }}-gcc

    steps:
    - uses: actions/checkout@v2
    - name: Run tests
      # All environment variables are stored inside the docker image in /ci/env_vars.sh
      # They are defined in the `env` section in each image.json. CI_ARGS should be set
      # via the `args` array ub the image.json
      run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./tools/run_with_cov.py ./run_tests.py $CI_ARGS'
    - name: Upload coverage report
      run: ./ci/upload_cov.sh "OS Comp [${{ matrix.cfg.name }}]"

  ubuntu-rolling:
    name: 'Ubuntu Rolling'
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        cfg:
          - CC: 'gcc'
            CXX: 'g++'
          - MESON_ARGS: '--unity=on -Ddefault_library=static'
            RUN_TESTS_ARGS: '--no-unittests'
            CC: 'gcc'
            CXX: 'g++'
          - MESON_ARGS: '-Ddefault_library=both'
            RUN_TESTS_ARGS: '--no-unittests'
            CC: 'gcc'
            CXX: 'g++'
          - CC: 'clang'
            CXX: 'clang++'
          - MESON_ARGS: '--unity=on'
            RUN_TESTS_ARGS: '--no-unittests'
            CC: 'clang'
            CXX: 'clang++'
          - RUN_TESTS_ARGS: '--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json'
            MESON_RSP_THRESHOLD: '0'
            CC: 'gcc'
            CXX: 'g++'
          - RUN_TESTS_ARGS: '--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json'
            MESON_ARGS: '--unity=on'
            CC: 'gcc'
            CXX: 'g++'

    env:
      MESON_CI_JOBNAME_UPDATE: linux-${{ github.job }}-${{ matrix.cfg.CC }}

    container:
      image: mesonbuild/ubuntu-rolling
      env:
        MESON_RSP_THRESHOLD: ${{ matrix.cfg.MESON_RSP_THRESHOLD }}
        MESON_ARGS: ${{ matrix.cfg.MESON_ARGS }}
        RUN_TESTS_ARGS: ${{ matrix.cfg.RUN_TESTS_ARGS }}
        CC: ${{ matrix.cfg.CC }}
        CXX: ${{ matrix.cfg.CXX }}

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

      - name: Run tests
        shell: bash
        run: |
          export HOME=/root

          export CC=$CC
          export CXX=$CXX
          export OBJC=$CC
          export OBJCXX=$CXX
          export PATH=$(pwd)/tools:$PATH
          if test "$MESON_RSP_THRESHOLD" != ""
          then
            export MESON_RSP_THRESHOLD=$MESON_RSP_THRESHOLD
          fi

          source /ci/env_vars.sh
          export MESON_CI_JOBNAME=$MESON_CI_JOBNAME_UPDATE

          update-alternatives --set x86_64-w64-mingw32-gcc /usr/bin/x86_64-w64-mingw32-gcc-posix
          update-alternatives --set x86_64-w64-mingw32-g++ /usr/bin/x86_64-w64-mingw32-g++-posix
          update-alternatives --set i686-w64-mingw32-gcc   /usr/bin/i686-w64-mingw32-gcc-posix
          update-alternatives --set i686-w64-mingw32-g++   /usr/bin/i686-w64-mingw32-g++-posix

          ./tools/run_with_cov.py ./run_tests.py $RUN_TESTS_ARGS -- $MESON_ARGS

      - name: Upload coverage report
        run: ./ci/upload_cov.sh "Ubuntu [${{ matrix.cfg.CC }} ${{ matrix.cfg.RUN_TESTS_ARGS }} ${{ matrix.cfg.MESON_ARGS }}]"