builder.yml

name: Android Kernel Builder

on:
  push:
    paths-ignore:
    - '**.md'
    - 'COPYING'
    - 'LICENSES/**'
    - 'Documentation/**'
    - 'README'
  workflow_dispatch:
  

jobs:
    build:
        runs-on: ubuntu-latest

        steps:
            - name: Checkout repository
              uses: actions/checkout@v4
              with:
                submodules: 'recursive'

            # Restore apt dependencies cache
            - name: Restore apt dependencies cache
              uses: actions/cache@v4
              with:
                  path: /var/cache/apt/archives
                  key: ${{ runner.os }}-apt-cache
                  restore-keys: |
                      ${{ runner.os }}-apt-cache

            - name: Install dependencies
              run: |
                  sudo apt-get update
                  sudo apt-get install -y git build-essential libncurses5-dev bison flex libssl-dev libelf-dev bc python3 python3-dev make \
                      liblz4-tool make optipng device-tree-compiler libc6-dev-i386 lib32ncurses5-dev libx11-dev lib32z-dev libgl1-mesa-dev xsltproc pwgen libswitch-perl policycoreutils \
                      minicom libxml-sax-base-perl libxml-simple-perl libc6-dev-i386 lib32ncurses5-dev libx11-dev lib32z-dev libgl1-mesa-dev xsltproc bison gperf zlib1g-dev automake

            # Restore clang cache
            - name: Restore clang cache
              uses: actions/cache@v4
              id: cache-clang
              with:
                  path: linux-x86
                  key: ${{ runner.os }}-clang-cache
                  restore-keys: |
                      ${{ runner.os }}-clang-cache

            - name: Clone clang (prebuilt)
              if: steps.cache-clang.outputs.cache-hit != 'true'
              run: |
                  [ -d "linux-x86" ] && rm -rf linux-x86
                  git clone --depth=1 https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86 -b android11-mainline-release

            # Restore gcc cache
            - name: Restore gcc cache
              uses: actions/cache@v4
              id: cache-gcc
              with:
                  path: |
                      aarch64-linux-android-4.9
                      arm-linux-androideabi-4.9
                  key: ${{ runner.os }}-gcc-cache
                  restore-keys: |
                      ${{ runner.os }}-gcc-cache

            - name: Clone gcc (prebuilt)
              if: steps.cache-gcc.outputs.cache-hit != 'true'
              run: |
                  [ -d "aarch64-linux-android-4.9" ] && rm -rf aarch64-linux-android-4.9
                  [ -d "arm-linux-androideabi-4.9" ] && rm -rf arm-linux-androideabi-4.9
                  git clone --depth=1 https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9 -b android11-mainline-release
                  git clone --depth=1 https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9 -b android11-mainline-release

            - name: Build kernel
              run: |
                  export ARCH=arm64
                  export SUBARCH=arm64
                  export CROSS_COMPILE=aarch64-linux-gnu-
                  export PATH=$PWD/aarch64-linux-android-4.9/bin:$PWD/arm-linux-androideabi-4.9/bin:$PATH
                  make O=out CC=clang ARCH=arm64 CLANG_TRIPLE=aarch64-linux-gnu- CROSS_COMPILE=aarch64-linux-androidkernel- CROSS_COMPILE_ARM32=arm-linux-androideabi- gki_defconfig
                  make -j$(nproc --all) O=out CC=clang ARCH=arm64 CLANG_TRIPLE=aarch64-linux-gnu- CROSS_COMPILE=aarch64-linux-androidkernel- CROSS_COMPILE_ARM32=arm-linux-androideabi-

            # Save apt dependencies cache
            - name: Save apt dependencies cache
              if: always()
              uses: actions/cache@v4
              with:
                  path: /var/cache/apt/archives
                  key: ${{ runner.os }}-apt-cache

            # Save clang cache
            - name: Save clang cache
              if: always()
              uses: actions/cache@v4
              with:
                  path: linux-x86
                  key: ${{ runner.os }}-clang-cache

            # Save gcc cache
            - name: Save gcc cache
              if: always()
              uses: actions/cache@v4
              with:
                  path: |
                      aarch64-linux-android-4.9
                      arm-linux-androideabi-4.9
                  key: ${{ runner.os }}-gcc-cache

            - name: Upload kernel (Image)
              uses: actions/upload-artifact@v4
              with:
                  if-no-files-found: ignore
                  name: Image
                  path: out/arch/arm64/boot/Image

            - name: Upload Kernel (Image.gz)
              uses: actions/upload-artifact@v4
              with:
                  if-no-files-found: ignore
                  name: Image.gz
                  path: out/arch/arm64/boot/Image.gz

            - name: Upload Kernel (dts)
              uses: actions/upload-artifact@v4
              with:
                  if-no-files-found: ignore
                  name: dts
                  path: out/arch/arm64/boot/dts