linux_build.yml

name: 🐧 Linux Builds
on:
  push:
    branches:
      - 'main'
  pull_request:

env:
  GODOT_VERSION: "4.2.1"

jobs:
  build-ffmpeg:
    runs-on: "ubuntu-20.04"
    name: Build FFmpeg (${{ matrix.name }})
    strategy:
      matrix:
        include:
          - name: 32 Bits
            cache_key: x86_32
            arch: linux32
          - name: 64 Bits
            cache_key: x86_64
            arch: linux64

    steps:
      - name: "Load cached build"
        id: "cache_ffmpeg"
        uses: actions/cache@v4
        with:
          path: cached_builds/ffmpeg
          key: Linux-${{ matrix.cache_key }}-ffmpeg-build
          restore-keys: Linux-${{ matrix.cache_key }}-ffmpeg-build
          save-always: true
          lookup-only: true
        continue-on-error: true

      - name: "Checkout FFmpeg"
        if: steps.cache_ffmpeg.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          repository: retrohub-org/FFmpeg-Builds
          path: "ffmpeg"

      - name: "Free space"
        if: steps.cache_ffmpeg.outputs.cache-hit != 'true'
        run: |
          df -h
          sudo apt-get clean
          docker system prune -a -f
          sudo rm -rf /usr/local/lib/android /usr/share/dotnet /opt/ghc
          df -h

      - name: "Compilation"
        if: steps.cache_ffmpeg.outputs.cache-hit != 'true'
        working-directory: ./ffmpeg
        run: |
          ./makeimage.sh ${{ matrix.arch }} lgpl-godot 6.0
          ./build.sh ${{ matrix.arch }} lgpl-godot 6.0
          mkdir -p -v ../cached_builds/ffmpeg
          tar -xvf artifacts/ffmpeg*${{ matrix.arch }}-lgpl-godot-6.0.tar.xz --directory=../cached_builds/ffmpeg --strip-components=1
          ls -la ../cached_builds/ffmpeg

  build-eirteam_ffmpeg:
    runs-on: "ubuntu-20.04"
    name: Build EIRTeam.FFmpeg (${{ matrix.name }})
    needs: [build-ffmpeg]
    strategy:
      matrix:
        include:
          - name: 32 Bits
            cache_key: x86_32
            arch: x86_32
            eirteam_arch: linux32
          - name: 64 Bits
            cache_key: x86_64
            arch: x86_64
            eirteam_arch: linux64

    steps:
      - name: "Load cached build"
        uses: actions/cache@v4
        id: "cache_eirteam_ffmpeg"
        with:
          path: cached_builds/eirteam_ffmpeg/${{ matrix.eirteam_arch }}
          key: Linux-${{ matrix.cache_key }}-eirteam_ffmpeg-build
          restore-keys: Linux-${{ matrix.cache_key }}-eirteam_ffmpeg-build
          save-always: true
          lookup-only: true
        continue-on-error: true

      - name: "Load FFmpeg build"
        id: "cache_ffmpeg"
        if: steps.cache_eirteam_ffmpeg.outputs.cache-hit != 'true'
        uses: actions/cache@v4
        with:
          path: cached_builds/ffmpeg
          key: Linux-${{ matrix.cache_key }}-ffmpeg-build
          restore-keys: Linux-${{ matrix.cache_key }}-ffmpeg-build
        continue-on-error: false

      - name: "Checkout EIRTeam.FFmpeg"
        if: steps.cache_eirteam_ffmpeg.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          repository: retrohub-org/EIRTeam.FFmpeg
          submodules: recursive
          path: "eirteam_ffmpeg"

      - name: "Install dependencies"
        if: steps.cache_eirteam_ffmpeg.outputs.cache-hit != 'true'
        run: |
          sudo dpkg --add-architecture i386
          sudo apt-get update
          # The actual dependencies
          sudo apt-get install build-essential gcc-multilib g++-multilib pkg-config wget unzip
          python -m pip install scons==4.4.0

      - name: "Compilation"
        if: steps.cache_eirteam_ffmpeg.outputs.cache-hit != 'true'
        working-directory: ./eirteam_ffmpeg
        run: |
          mkdir -p -v thirdparty
          mv $GITHUB_WORKSPACE/cached_builds/ffmpeg thirdparty

          cd gdextension_build
          scons arch=${{ matrix.arch }} verbose=yes target=template_release

          mkdir -p -v $GITHUB_WORKSPACE/cached_builds/eirteam_ffmpeg
          cp -r -v build/addons/ffmpeg/${{ matrix.eirteam_arch }} $GITHUB_WORKSPACE/cached_builds/eirteam_ffmpeg

  build-godot:
    runs-on: "ubuntu-20.04"
    name: Build Godot (${{ matrix.name }})
    strategy:
      matrix:
        include:
          - name: 32 Bits
            cache_key: x86_32
            arch: x86_32
            bin_template: godot.linuxbsd.template_release.x86_32
            bin_editor: godot.linuxbsd.editor.x86_32
            template: godot_32
          - name: 64 Bits
            cache_key: x86_64
            arch: x86_64
            bin_template: godot.linuxbsd.template_release.x86_64
            bin_editor: godot.linuxbsd.editor.x86_64
            template: godot_64

    steps:
      - name: "Load cached build"
        uses: actions/cache@v4
        id: "cache_godot"
        with:
          path: |
            cached_builds/editor/godot
            cached_builds/template/${{ matrix.template }}
          key: Linux-${{ matrix.cache_key }}-godot-build
          restore-keys: Linux-${{ matrix.cache_key }}-godot-build
          save-always: true
          lookup-only: true
        continue-on-error: true

      - name: "Checkout Custom Godot"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          repository: retrohub-org/godot
          ref: retrohub_patches_4x
          path: "godot"
      
      - name: "Install dependencies"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        run: |
          sudo rm -f /etc/apt/sources.list.d/microsoft-prod.list
          sudo add-apt-repository ppa:kisak/kisak-mesa
          sudo apt-get install -qq mesa-vulkan-drivers
          sudo dpkg --add-architecture i386
          sudo apt-get update
          # The actual dependencies
          sudo apt-get install build-essential gcc-multilib g++-multilib pkg-config libc6-dev-i386 libx11-dev libx11-dev:i386 \
              libxcursor-dev libxcursor-dev:i386 libxinerama-dev libxinerama-dev:i386 libx11-dev:i386 libgl1-mesa-dev \
              libgl1-mesa-dev:i386 libglu-dev libasound2-dev libpulse-dev libdbus-1-dev libudev-dev libxi-dev \
              libxi-dev:i386 libxrandr-dev libxrandr-dev:i386 yasm xvfb wget unzip

      - name: "Setup Godot build cache"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        uses: ./godot/.github/actions/godot-cache
        with:
          cache-name: linux-template
        continue-on-error: true
    
      - name: "Setup python and scons"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        uses: ./godot/.github/actions/godot-deps

      - name: "Compilation [editor]"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        uses: ./godot/.github/actions/godot-build
        with:
          root: ./godot
          sconsflags: verbose=yes werror=no production=yes arch=${{ matrix.arch }}
          platform: linuxbsd
          target: editor

      - name: "Compilation [template]"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        uses: ./godot/.github/actions/godot-build
        with:
          root: ./godot
          sconsflags: verbose=yes warnings=all werror=no use_lto=yes optimize=size arch=${{ matrix.arch }}
          platform: linuxbsd
          target: template_release

      - name: "Clean and cache template build"
        if: steps.cache_godot.outputs.cache-hit != 'true'
        run: |
          strip godot/bin/*
          mkdir -p -v cached_builds/editor
          mkdir -p -v cached_builds/template
          mv godot/bin/${{ matrix.bin_editor }} cached_builds/editor/godot
          mv godot/bin/${{ matrix.bin_template }} cached_builds/template/${{ matrix.template }}

  build-retrohub:
    runs-on: "ubuntu-20.04"
    name: Build RetroHub (${{ matrix.name }})
    needs: [build-godot, build-eirteam_ffmpeg]
    strategy:
      matrix:
        include:
          - name: 32 Bits
            cache_key: x86_32
            arch: x86_32
            template: godot_32
            eirteam_ffmpeg: linux32
          - name: 64 Bits
            cache_key: x86_64
            arch: x86_64
            template: godot_64
            eirteam_ffmpeg: linux64

    steps:
      - name: "Load EIRTeam.FFmpeg build"
        uses: actions/cache@v4
        id: "cache_eirteam_ffmpeg"
        with:
          path: cached_builds/eirteam_ffmpeg/${{ matrix.eirteam_ffmpeg }}
          key: Linux-${{ matrix.cache_key }}-eirteam_ffmpeg-build
          restore-keys: Linux-${{ matrix.cache_key }}-eirteam_ffmpeg-build
          fail-on-cache-miss: true
        continue-on-error: false

      - name: "Load Godot builds"
        uses: actions/cache@v4
        id: "cache_godot"
        with:
          path: |
            cached_builds/editor/godot
            cached_builds/template/${{ matrix.template }}
          key: Linux-${{ matrix.cache_key }}-godot-build
          restore-keys: Linux-${{ matrix.cache_key }}-godot-build
          fail-on-cache-miss: true
        continue-on-error: false

      - name: "Checkout RetroHub"
        uses: actions/checkout@v4
        with:
          path: "retrohub"

      - name: "Setup templates and libraries"
        env:
          TEMPLATE_PATH: /home/runner/.local/share/godot/export_templates/${{ env.GODOT_VERSION }}.retrohub
        run: |
          mkdir -p -v $TEMPLATE_PATH
          cp cached_builds/template/${{ matrix.template }} $TEMPLATE_PATH/linux_release.${{ matrix.arch }}
          ln -s ${{ github.workspace }}/cached_builds/eirteam_ffmpeg/${{ matrix.eirteam_ffmpeg }} retrohub/addons/ffmpeg/${{ matrix.eirteam_ffmpeg }}
          mkdir -p -v export/linux_${{ matrix.arch }}

      - name: "Package default themes"
        uses: ./retrohub/.github/actions/get-default-themes

      - name: "Import project"
        working-directory: retrohub
        env:
          GODOT_PATH: ${{ github.workspace }}/cached_builds/editor/godot
        run: |
          # The first import loads EIRTeam.FFmpeg, an addon which blocks the editor as it requires a restart
          timeout 30s $GODOT_PATH --headless --editor || true
          $GODOT_PATH --headless --editor --quit-after 100


      - name: "Exporting RetroHub"
        working-directory: retrohub
        env:
          GODOT_PATH: ${{ github.workspace }}/cached_builds/editor/godot
        run: |
          $GODOT_PATH --headless --verbose --export-release "Linux (${{ matrix.arch }})" ../export/linux_${{ matrix.arch }}/RetroHub

      - name: "Upload Artifacts"
        uses: actions/upload-artifact@v4
        with:
          name: linux-${{ matrix.arch }}
          path: export/linux_${{ matrix.arch }}