name: Raspberry Pi Build

on:
  create:
    tags:
      - '/^v[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+[A-Za-z0-9]*$/'
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-22.04
    name: Build RTL8812AU driver for Raspberry Pi
    steps:
    - uses: actions/checkout@v3
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y curl gnupg2 curl
        sudo apt-get install -y gcc-arm-linux-gnueabihf crossbuild-essential-arm64 make
        sudo curl -fsSL http://archive.raspberrypi.org/debian/raspberrypi.gpg.key --output /usr/share/keyrings/raspberrypi.gpg.key
        echo "deb [arch=amd64, signed-by=/usr/share/keyrings/raspberrypi.gpg.key] http://archive.raspberrypi.org/debian/ bullseye main" | sudo tee /etc/apt/sources.list.d/raspberrypi.list > /dev/null
        sudo apt-get update
        sudo apt-get install -y raspberrypi-kernel-headers
    - name: Build Pi kernel drivers
      id: build_raspberry
      run: |
        sed -i 's/CONFIG_PLATFORM_I386_PC = y/CONFIG_PLATFORM_I386_PC = n/g' Makefile
        sed -i 's/CONFIG_PLATFORM_ARM_RPI = n/CONFIG_PLATFORM_ARM_RPI = y/g' Makefile
        for kernel_folder in /lib/modules/*+; do
          kver=`basename "$kernel_folder"`
          if [[ $kver =~ "v8" ]]; then
            target_arch="arm64"
            cross="aarch64-linux-gnu-"
          else
            target_arch="arm"
            cross="arm-linux-gnueabihf-"
          fi
          echo "Cross compiling" "$kver" "for arch" "$target_arch"
          make clean > log.txt
          make ARCH=$target_arch CROSS_COMPILE=$cross KVER=$kver -j$(nproc) > log.txt && mkdir -p build/raspberrypi/$kver/ && cp 88XXau.ko build/raspberrypi/$kver/
          echo kernel_ver="$(echo $kver | cut -f 1 -d -)" >> $GITHUB_OUTPUT
        done
    - name: Build Re4son kernel drivers
      id: build_kali
      run: |
        sudo apt-get -y install qemu-system-arm qemu-user-static binfmt-support  > /dev/null
        curl -fsSL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x96d00b0c4b00fd5360cc087711764ee8ac24832f" | sudo gpg --dearmor -o /usr/share/keyrings/kali.gpg
        echo "deb [arch=armel,armhf,arm64 signed-by=/usr/share/keyrings/kali.gpg] http://http.re4son-kernel.com/re4son/ kali-pi main" | sudo tee /etc/apt/sources.list.d/kali.list
        sudo sed -i 's/deb http/deb [arch=amd64] http/g' /etc/apt/sources.list
        sed -i 's/CONFIG_PLATFORM_I386_PC = y/CONFIG_PLATFORM_I386_PC = n/g' Makefile
        sed -i 's/CONFIG_PLATFORM_ARM_RPI = n/CONFIG_PLATFORM_ARM_RPI = y/g' Makefile
        for arch in "armel" "armhf" "arm64"; do
          echo "Adding arch" "$arch"
          sudo dpkg --add-architecture "$arch"
          sudo apt-get update
          sudo apt-get install -y kalipi-kernel-headers:"$arch"
          for kernel_folder in /lib/modules/*Re4son*; do
            kver=`basename "$kernel_folder"`
            if [[ $kver =~ "v8" ]]; then
              target_arch="arm64"
              cross="aarch64-linux-gnu-"
              sudo ln -fs /usr/aarch64-linux-gnu/lib/libc.so.6 /lib/libc.so.6
              sudo ln -fs /usr/aarch64-linux-gnu/lib/ld-linux-aarch64.so.1 /lib/ld-linux-aarch64.so.1
            else
              target_arch="arm"
              cross="arm-linux-gnueabihf-"
              sudo ln -fs /usr/arm-linux-gnueabihf/lib/libc.so.6 /lib/libc.so.6
              sudo ln -fs /usr/arm-linux-gnueabihf/lib/ld-linux-armhf.so.3 /lib/ld-linux-armhf.so.3
              sudo ln -fs /usr/arm-linux-gnueabihf/lib/ld-linux.so.3 /lib/ld-linux.so.3
            fi
            echo "Cross compiling" "$kver" "for arch" "$target_arch"
            make clean > log.txt
            make ARCH=$target_arch CROSS_COMPILE=$cross KVER=$kver -j$(nproc) > log.txt && mkdir -p build/kalipi/$kver/ && cp 88XXau.ko build/kalipi/$kver/
            echo kernel_ver="$(echo $kver | cut -f 1 -d -)" >> $GITHUB_OUTPUT
          done
        done
    - name: Compress artifacts
      run: |
        tar czvf rtl8812au-kalipi-${{ steps.build_kali.outputs.kernel_ver }}.tar.gz -C build/kalipi/ .
        tar czvf rtl8812au-raspberrypi-${{ steps.build_raspberry.outputs.kernel_ver }}.tar.gz -C build/raspberrypi/ .
    - name: Upload artifacts
      uses: actions/upload-artifact@v3
      with:
        name: RPi kernel drivers
        path: rtl8812au*.tar.gz
    - name: Publish release
      uses: softprops/action-gh-release@v1
      if: startsWith(github.ref, 'refs/tags/')
      with:
        files: |
          rtl8812au-*.tar.gz