arm_cross_compile.yml

on:
  workflow_call:
    inputs:
      connect-type:
        required: true
        type: string
      # Debug flag indicates whether to build a debug build (no optimization, debugger symbols)
      debug-flag:
        required: false
        type: boolean

jobs:
  build_arm:
    runs-on: ubuntu-22.04
    defaults:
      run:
        working-directory: cpp
    env:
      APT_ARM_TOOLCHAIN: "gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf libspdlog-dev"
      APT_LIBRARIES: "libspdlog-dev:armhf libpcap-dev:armhf libevdev2:armhf libev-dev:armhf protobuf-compiler libprotobuf-dev:armhf"
    steps:
      - uses: actions/checkout@v3

      - name: Add armhf as architecture
        run: sudo dpkg --add-architecture armhf

      - name: Reconfigure apt for arch amd64
        run: sudo sed -i "s/deb /deb [arch=amd64] /g" /etc/apt/sources.list

      - name: Add armhf repos (jammy)
        run: sudo bash -c "echo \"deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ jammy main multiverse restricted universe\" >> /etc/apt/sources.list"

      - name: Add armhf repos (jammy-updates)
        run: sudo bash -c "echo \"deb [arch=armhf] http://ports.ubuntu.com/ubuntu-ports/ jammy-updates main multiverse restricted universe\" >> /etc/apt/sources.list"

      - name: Update apt
        run: sudo apt update

      - name: Install apt packages
        run: sudo apt-get --yes install ${{ env.APT_ARM_TOOLCHAIN }} ${{ env.APT_LIBRARIES }}

      - name: Build debug strings
        if: ${{ inputs.debug-flag }}
        run: |
          echo "debug_flag_compile=DEBUG\=1" >> $GITHUB_ENV
          echo "debug_flag_filename=debug-" >> $GITHUB_ENV

      - name: Compile
        run: make all -j 6 CONNECT_TYPE=${{ inputs.connect-type }} ${{ env.debug_flag_compile }} CROSS_COMPILE=arm-linux-gnueabihf-

      # We need to tar the binary outputs to retain the executable
      # file permission. Currently, actions/upload-artifact only
      # supports .ZIP files.
      # This is workaround for https://github.com/actions/upload-artifact/issues/38
      - name: Tar binary output
        run: tar -czvf ${{ env.debug_flag_filename }}piscsi-${{ inputs.connect-type }}.tar.gz ./bin

      - name: Upload binaries
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.debug_flag_filename }}arm-binaries-${{ inputs.connect-type }}.tar.gz
          path: cpp/${{ env.debug_flag_filename }}piscsi-${{ inputs.connect-type }}.tar.gz