name: CI Build

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
  workflow_dispatch:
    inputs:
      CLEAN_CCACHE:
        description: 'Clean ccache before build'
        required: false
        default: 'false'


# cancel already running builds of the same branch or pull request
concurrency:
  group: ci-${{ github.workflow }}-${{ github.event.pull_request.number || github.head_ref || github.sha }}
  cancel-in-progress: true

env:
  MATE_DESKTOP_VERSION: 1.28.2
  CACHE_PATH: /tmp/.cache

jobs:
  build:
    name: ${{matrix.container}} (${{matrix.cc}} ${{matrix.build-system}})
    runs-on: ubuntu-latest
    container:
      image: ${{matrix.container}}
      volumes:
        - /tmp/.cache

    strategy:
      fail-fast: false # don't cancel other jobs in the matrix if one fails
      matrix:
        container:
          [
            "debian:testing",
            "fedora:latest",
            "ubuntu:rolling",
            "archlinux:latest",
          ]
        cc: ["gcc"]
        cxx: ["g++"]
        build-system: ["autotools", "meson"]
        include:
          - container: "archlinux:latest"
            build-system: "autotools"
            cc: "clang"
            cxx: "clang++"
          - container: "archlinux:latest"
            build-system: "meson"
            cc: "clang"
            cxx: "clang++"

    env:
      # Speed up build with ccache
      CC: ccache ${{ matrix.cc }}
      CXX: ccache ${{ matrix.cxx }}
      CONTAINER: ${{ matrix.container }}

    steps:
      - name: Setup environment variables
        id: distro-name
        shell: bash
        run: |
          split=(${CONTAINER//:/ })
          distro=${split[0]}
          short_sha=${SHA:0:8}
          echo "DISTRO=$distro" | tee -a  $GITHUB_ENV
      - name: Install git command
        shell: bash
        run: |
          echo "::group::Install git ..."
          apt-get update -qq && apt-get install --assume-yes git || true
          dnf update -y && dnf install -y git || true
          pacman --noconfirm -Sy git || true
          echo "::endgroup::"
      - name: Repository checkout
        uses: actions/checkout@v4
        with:
          submodules: "true"
      - name: Install dependency packages
        run: .github/workflows/${{ env.DISTRO }}.sh
      - name: Enable ccache to speed up builds
        uses: hendrikmuhs/ccache-action@v1.2
        with:
          key: ${{ env.DISTRO }}-${{ matrix.cc }}

      # INFO: M-C-C depends mate-desktop 1.27.1+, so we should install it from source.
      - name: Cache mate-desktop binary packages
        uses: actions/cache@v3
        id: cache-mate-desktop
        with:
          path: ${{ env.CACHE_PATH }}
          key: ${{ env.DISTRO }}-build-mate-desktop-${{env.MATE_DESKTOP_VERSION}}
      - name: Optionally force ccache cleanup
        if: ${{ github.event.inputs.CLEAN_CCACHE == 'true' }}
        run: |
          ccache -C
      - name: Build and install mate-desktop from source
        run: .github/workflows/mate-desktop.sh ${{env.MATE_DESKTOP_VERSION}} ${{ env.CACHE_PATH }}
      # INFO: M-C-C depends mate-desktop 1.27.1+, install finished.
      - name: Disable DVI on ubunut and fedora latest
        run: |
          if [ "${{ matrix.container }}" = "fedora:latest" ] || [ "${{ matrix.container }}" = "ubuntu:rolling" ]; then
            echo "DVI_OPTION=-Ddvi=disabled" >> $GITHUB_ENV
            echo "Disabling DVI backend on ${{ matrix.container }}"
          else
            echo "DVI_OPTION=" >> $GITHUB_ENV
            echo "Building with DVI backend on ${{ matrix.container }}"
          fi
      - name: Build the source code
        run: .github/workflows/builds.sh ${{ matrix.build-system }}