build.yml

# Build Github Action, to run a test build on all targets
# (Linux, Blit, MacOS, Visual Studio) when the project is checked in.
#
# Thanks in large part to the phenomenal examples of DaftFreak.

name: Build

on:
  push:
    branches:
      - '**' # only run on branches
  pull_request:
  release:
    types: [published]

env:
  BUILD_TYPE: Release
  EM_VERSION: 2.0.18 # Emscripten version
  EM_CACHE_FOLDER: 'emsdk-cache' # Cache for Emscripten libs

jobs:

  build:

    name: ${{matrix.name}}
    strategy:
      matrix:
        include:
          - os: ubuntu-20.04
            name: Linux
            release-suffix: LIN64
            cmake-args: -D32BLIT_DIR=$GITHUB_WORKSPACE/32blit-sdk
            apt-packages: libsdl2-dev libsdl2-image-dev libsdl2-net-dev python3-setuptools

          - os: ubuntu-20.04
            name: STM32
            release-suffix: STM32
            cmake-args: -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/32blit-sdk/32blit.toolchain
            apt-packages: gcc-arm-none-eabi libnewlib-arm-none-eabi libstdc++-arm-none-eabi-newlib python3-setuptools

          - os: ubuntu-20.04
            name: Emscripten
            release-suffix: WEB
            cmake-args: -D32BLIT_DIR=$GITHUB_WORKSPACE/32blit-sdk
            cmake-prefix: emcmake
            apt-packages: python3-setuptools

          - os: macos-latest
            name: macOS
            release-suffix: MACOS
            cmake-args: -D32BLIT_DIR=$GITHUB_WORKSPACE/32blit-sdk
            brew-packages: sdl2 sdl2_image sdl2_net pipx

          - os: windows-latest
            name: Visual Studio
            release-suffix: WIN64
            cmake-args: -D32BLIT_DIR=$GITHUB_WORKSPACE/32blit-sdk

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

    env:
      RELEASE_FILE: ${{github.event.repository.name}}-${{github.event.release.tag_name}}-${{matrix.release-suffix}}

    steps:
    # Check out the main repo
    - name: Checkout
      uses: actions/checkout@v3
      with:
        path: main

    # Check out the 32Blit API we build against
    - name: Checkout 32Blit API
      uses: actions/checkout@v3
      with:
        repository: 32blit/32blit-sdk
        path: 32blit-sdk

    # Linux dependencies
    - name: Install Linux deps
      if: runner.os == 'Linux'
      run: |
        sudo apt update && sudo apt install ${{matrix.apt-packages}}
        pip3 install 32blit

    # MacOS dependencies
    - name: Install macOS deps
      if: runner.os == 'macOS'
      run: |
        brew install ${{matrix.brew-packages}}
        pipx install 32blit

    # Windows dependencies
    - name: Install Windows deps
      if: runner.os == 'Windows'
      shell: bash
      run: |
        python -m pip install 32blit

    # Emscripten SDK setup
    - name: Setup Emscripten cache
      if: matrix.name == 'Emscripten'
      id: cache-system-libraries
      uses: actions/cache@v3
      with:
        path: ${{env.EM_CACHE_FOLDER}}
        key: ${{env.EM_VERSION}}-${{runner.os}}

    - name: Setup Emscripten
      if: matrix.name == 'Emscripten'
      uses: mymindstorm/setup-emsdk@v12
      with:
        version: ${{env.EM_VERSION}}
        actions-cache-folder: ${{env.EM_CACHE_FOLDER}}

    - name: Pre-build Emscripten ports
      if: matrix.name == 'Emscripten'
      run: embuilder.py build sdl2 sdl2-image-jpg sdl2-net

    # Set up the cmake build environment
    - name: Create Build Environment
      run: cmake -E make_directory ${{runner.workspace}}/main/build

    # Ask cmake to build the makefiles
    - name: Configure CMake
      shell: bash
      working-directory: ${{runner.workspace}}/main/build
      run: ${{matrix.cmake-prefix}} cmake $GITHUB_WORKSPACE/main -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCPACK_PACKAGE_FILE_NAME=${{env.RELEASE_FILE}} ${{matrix.cmake-args}}

    # And then run the build itself
    - name: Build
      working-directory: ${{runner.workspace}}/main/build
      shell: bash
      run: |
        cmake --build . --config $BUILD_TYPE -j 2

    # When it's a release, generate tar/zip files of the build
    - name: Package Release
      if: github.event_name == 'release' && matrix.release-suffix != ''
      shell: bash
      working-directory: ${{runner.workspace}}/main/build
      run: |
        cmake --build . --config $BUILD_TYPE --target package

    # Push the tar file to the release
    - name: Upload tar
      if: github.event_name == 'release' && matrix.release-suffix != ''
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      with:
        asset_path: ${{runner.workspace}}/main/build/${{env.RELEASE_FILE}}.tar.gz
        upload_url: ${{github.event.release.upload_url}}
        asset_name: ${{env.RELEASE_FILE}}.tar.gz
        asset_content_type: application/octet-stream

    # Push the zip file to the release
    - name: Upload zip
      if: github.event_name == 'release' && matrix.release-suffix != ''
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      with:
        asset_path: ${{runner.workspace}}/main/build/${{env.RELEASE_FILE}}.zip
        upload_url: ${{github.event.release.upload_url}}
        asset_name: ${{env.RELEASE_FILE}}.zip
        asset_content_type: application/zip