build-kernel.yml

name: Build MikaKernel


on:
  workflow_dispatch:


jobs:
  build-kernel:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Setup environment
        run: |
          echo "ANYKERNEL_SOURCE=$(cat config.env | grep -w "ANYKERNEL_SOURCE" | head -n 1 | cut -d "=" -f 2)" >> $GITHUB_ENV
          echo "ANYKERNEL_SOURCE_BRANCH=$(cat config.env | grep -w "ANYKERNEL_SOURCE_BRANCH" | head -n 1 | cut -d "=" -f 2)" >> $GITHUB_ENV
          echo "KERNEL_SOURCE=$(cat config.env | grep -w "KERNEL_SOURCE" | head -n 1 | cut -d "=" -f 2)" >> $GITHUB_ENV
          echo "KERNEL_SOURCE_BRANCH=$(cat config.env | grep -w "KERNEL_SOURCE_BRANCH" | head -n 1 | cut -d "=" -f 2)" >> $GITHUB_ENV
          echo "KERNEL_TARGET=$(cat config.env | grep -w "KERNEL_TARGET" | head -n 1 | cut -d "=" -f 2)" >> $GITHUB_ENV
          echo "BUILD_ARGS=$(cat config.env | grep -w "BUILD_ARGS" | head -n 1 | cut -d ":" -f 2)" >> $GITHUB_ENV

      - name: Pull toolchain
        run: |
          git clone --depth=1 https://github.com/LineageOS/android_prebuilts_gcc_linux-x86_aarch64_aarch64-linux-android-4.9 aarch64-linux-android-4.9
          git clone --depth=1 https://github.com/LineageOS/android_prebuilts_gcc_linux-x86_arm_arm-linux-androideabi-4.9 arm-linux-androideabi-4.9
          mkdir clang && curl https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86/+archive/refs/heads/android12-release/clang-r416183b1.tar.gz -RLO && tar -C clang/ -xf clang-*.tar.gz

      - name: Pull kernel source
        run: |
          git clone --depth=1 ${{ env.KERNEL_SOURCE }} -b ${{ env.KERNEL_SOURCE_BRANCH }} kernel-source
          echo "KERNEL_VERSION="$(cat kernel-source/arch/arm64/configs/${{ env.KERNEL_TARGET }}_defconfig | grep "CONFIG_LOCALVERSION\=" | sed -r 's/.*"(.+)".*/\1/' | sed 's/^.//')"" >> $GITHUB_ENV

      - name: Build kernel
        run: |
          export KBUILD_BUILD_USER="zclkkk"
          export KBUILD_BUILD_HOST="workspace"
          export PATH=$GITHUB_WORKSPACE/clang/bin:${PATH}
          args="                  ARCH=arm64 \
                                  O=../out \
                                  ${{ env.BUILD_ARGS }} \
                                  CLANG_TRIPLE=aarch64-linux-gnu- \
                                  CROSS_COMPILE=$GITHUB_WORKSPACE/aarch64-linux-android-4.9/bin/aarch64-linux-android- \
                                  CROSS_COMPILE_ARM32=$GITHUB_WORKSPACE/arm-linux-androideabi-4.9/bin/arm-linux-androideabi- "
          cd kernel-source
          make ${args} ${{ env.KERNEL_TARGET }}_defconfig
          make -j$(($(getconf _NPROCESSORS_ONLN) * 2)) ${args}

      - name: Package kernel
        run: |
          git clone --depth=1 ${{ env.ANYKERNEL_SOURCE }} -b ${{ env.ANYKERNEL_SOURCE_BRANCH }} AnyKernel3 && rm -rf AnyKernel3/.git AnyKernel3/.github AnyKernel3/LICENSE AnyKernel3/README.md
          if [[ -f out/arch/arm64/boot/Image.gz-dtb ]]; then
            cp out/arch/arm64/boot/Image.gz-dtb AnyKernel3/Image.gz-dtb
          elif [[ -f out/arch/arm64/boot/Image-dtb ]]; then
            cp out/arch/arm64/boot/Image-dtb AnyKernel3/Image-dtb
          elif [[ -f out/arch/arm64/boot/Image.gz ]]; then
            cp out/arch/arm64/boot/Image.gz AnyKernel3/Image.gz
          elif [[ -f out/arch/arm64/boot/Image ]]; then
            cp out/arch/arm64/boot/Image AnyKernel3/Image
          fi
          if [ -f out/arch/arm64/boot/dtbo.img ]; then
            cp out/arch/arm64/boot/dtbo.img AnyKernel3/dtbo.img
          fi

      - name: Upload kernel to artifact
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.KERNEL_VERSION }}_${{ env.KERNEL_TARGET }}
          path: AnyKernel3/*