build.yml

name: Build

on:
  push:

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - name: Install and configure dependencies
        run: |
          sudo apt-get install -qq bats
      - uses: actions/checkout@v4
      - name: Build
        run: |
          cmake -S . -B build
          cmake --build build
      - name: Test
        run: bats tests.bats

  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          - TARGET: x86_64-linux-gnu # the native build, tested in a container on a mac
            OS: ubuntu-latest
            CC: cc
          - TARGET: x86_64-linux-musl # tested in an alpine container on a mac
            OS: ubuntu-latest
            CC: x86_64-linux-musl-gcc
          - TARGET: aarch64-linux-gnu # tested on aws t4g.nano
            OS: ubuntu-latest
            CC: aarch64-linux-gnu-gcc
          - TARGET: aarch64-linux-musl # tested in an alpine container on aws t4g.nano
            OS: ubuntu-latest
            CC: aarch64-linux-musl-gcc
          - TARGET: arm-linux-gnueabihf # tested on a Raspberry Pi 400
            OS: ubuntu-latest
            CC: arm-linux-gnueabihf-gcc
          - TARGET: arm-linux-musl # tested in an alphine container on a Raspberry Pi 400
            OS: ubuntu-latest
            CC: arm-linux-musleabihf-gcc
          - TARGET: x86_64-apple-darwin # tested on a mac, is not properly signed so there are security warnings
            OS: macos-latest
            CC: cc
    needs: test
    runs-on: ${{ matrix.OS }}
    env:
      NAME: multirun
      TARGET: ${{ matrix.TARGET }}
      OS: ${{ matrix.OS }}
      CC: ${{ matrix.CC }}
    steps:
      - name: Musl compilers cache
        uses: actions/cache@v4
        with:
          path: |
            ~/musl-compilers
          key: build-musl-compilers-dir
      - name: Install and configure dependencies
        run: |
          # dependencies are only needed on ubuntu as that's the only place where
          # we make cross-compilation
          if [[ $OS =~ ^ubuntu.*$ ]]; then
            sudo apt-get install -qq crossbuild-essential-arm64 crossbuild-essential-armhf
          fi
          # download musl compilers
          mkdir -p $HOME/musl-compilers
          pushd $HOME/musl-compilers
          if [[ ! -d x86_64-linux-musl-cross ]]; then
            wget -q -c http://musl.cc/x86_64-linux-musl-cross.tgz -O - | tar -xz
          fi
          if [[ ! -d aarch64-linux-musl-cross ]]; then
            wget -q -c http://musl.cc/aarch64-linux-musl-cross.tgz -O - | tar -xz
          fi
          if [[ ! -d arm-linux-musleabihf-cross ]]; then
            wget -q -c http://musl.cc/arm-linux-musleabihf-cross.tgz -O - | tar -xz
          fi
          popd
      - uses: actions/checkout@v4
      - name: List
        run: find .
      - name: Build
        run: |
          export PATH=$PATH:$HOME/musl-compilers/x86_64-linux-musl-cross/bin
          export PATH=$PATH:$HOME/musl-compilers/aarch64-linux-musl-cross/bin
          export PATH=$PATH:$HOME/musl-compilers/arm-linux-musleabihf-cross/bin
          cmake -S . -B build
          cmake --build build
      - name: Compress
        run: |
          mkdir -p ./artifacts
          if [[ $GITHUB_REF_TYPE =~ ^tag$ ]]; then
            TAG=$GITHUB_REF_NAME
          else
            TAG=$GITHUB_SHA
          fi
          tar -czf ./artifacts/$NAME-$TARGET-${{github.ref_name}}.tar.gz --directory build $NAME
      - name: Archive artifact
        uses: actions/upload-artifact@v4
        with:
          name: multirun-${{ matrix.TARGET }}-${{github.ref_name}}.tar.gz
          path: ./artifacts/multirun-${{ matrix.TARGET }}-${{github.ref_name}}.tar.gz

  # deploys to github releases on tag
  deploy:
    if: startsWith(github.ref, 'refs/tags/')
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: "*.tar.gz"
          merge-multiple: true
      - name: List
        run: find ./artifacts
      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          files: ./artifacts/*.tar.gz