name: build-ci

on:
  push:
    branches: [ "*" ]
    tags: [ "*" ]
    paths-ignore:
      - "**.7z"
  pull_request:
    branches: [ main ]

jobs:
  macos:
    runs-on: macos-latest
    env:
      SDL_VER: "2.0.22"
      FFMPEG_VER: "5.1"
      MACOSX_DEPLOYMENT_TARGET: "10.13"
      CCACHE_CPP2: "yes"
      CCACHE_SLOPPINESS: "time_macros"
      CC: "ccache clang"
      CXX: "ccache clang++"
    steps:
      - name: Checkout
        run: |
          git clone -b release-${SDL_VER} https://github.com/libsdl-org/SDL.git --depth 1
          git clone -b n${FFMPEG_VER} https://git.ffmpeg.org/ffmpeg.git --depth 1
      - name: Set up cache
        uses: actions/cache@v2
        with:
          path: |
            ~/Library/Caches/ccache
          key: ${{ runner.os }}-macos-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-macos-
      - name: Install dependencies
        run: |
          brew install p7zip ccache nasm
      - name: Build SDL
        run: |
          export PATH="/usr/local/opt/ccache/libexec:$PATH"

          mkdir -p SDL/build/sdl-${SDL_VER}
          cd SDL/build

          cmake ../ -DBUILD_SHARED_LIBS=1
          make -j4
          make install DESTDIR=$(pwd)/sdl-${SDL_VER}
          
          7z a "sdl-${SDL_VER}.7z" sdl-${SDL_VER}/
      - name: Build FFMPEG
        run: |
          export PATH="/usr/local/opt/ccache/libexec:$PATH"

          mkdir -p ffmpeg/build/ffmpeg-${FFMPEG_VER}
          cd ffmpeg/build

          # The included lzma is built for 10.15 can generaates linker warnings
          ../configure --cc="${CC}" --cxx="${CXX}" --enable-shared --disable-static --disable-doc \
              --disable-lzma
          make -j4
          make install DESTDIR=$(pwd)/ffmpeg-${FFMPEG_VER}
          
          7z a "ffmpeg-${FFMPEG_VER}.7z" ffmpeg-${FFMPEG_VER}/
      - name: Pack
        run: |
          # move the compiled archive into the artifacts directory to be uploaded
          mkdir artifacts
          mv "SDL/build/sdl-${SDL_VER}.7z" artifacts/
          mv "ffmpeg/build/ffmpeg-${FFMPEG_VER}.7z" artifacts/
      - name: Upload
        uses: actions/upload-artifact@v2
        with:
          name: macos
          path: |
            artifacts/