.github/workflows/build-android.yml

name: CI (android)

on:
  workflow_dispatch: # allows manual triggering
  push:
    branches:
      - master
    paths: [
      '.github/workflows/build-android.yml',
      '**/CMakeLists.txt',
      '**/.cmake',
      '**/*.h',
      '**/*.hpp',
      '**/*.c',
      '**/*.cpp'
    ]

  pull_request:
    types: [opened, synchronize, reopened]
    paths: [
      '.github/workflows/build-android.yml',
      'examples/llama.android/**'
    ]

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
  cancel-in-progress: true

env:
  GGML_NLOOP: 3
  GGML_N_THREADS: 1
  LLAMA_LOG_COLORS: 1
  LLAMA_LOG_PREFIX: 1
  LLAMA_LOG_TIMESTAMPS: 1

jobs:
  android:
    runs-on: ubuntu-latest

    steps:
      - name: Clone
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
          lfs: false

      - name: Set up JDK
        uses: actions/setup-java@v5
        with:
          java-version: 17
          distribution: zulu

      - name: Setup Android SDK
        uses: android-actions/setup-android@40fd30fb8d7440372e1316f5d1809ec01dcd3699 # v4.0.1
        with:
          log-accepted-android-sdk-licenses: false

      - name: Build
        run: |
          cd examples/llama.android
          ./gradlew build --no-daemon

  android-ndk:
    runs-on: ubuntu-latest
    container:
      image: 'ghcr.io/snapdragon-toolchain/arm64-android:v0.3'
    defaults:
      run:
        shell: bash
    strategy:
      matrix:
        include:
          - build: 'arm64-cpu'
            defines: '-D ANDROID_ABI=arm64-v8a -D ANDROID_PLATFORM=android-31 -D CMAKE_TOOLCHAIN_FILE=${ANDROID_NDK_ROOT}/build/cmake/android.toolchain.cmake -D GGML_NATIVE=OFF -DGGML_CPU_ARM_ARCH=armv8.5-a+fp16+i8mm -G Ninja -D LLAMA_OPENSSL=OFF -D GGML_OPENMP=OFF'
          - build: 'arm64-snapdragon'
            defines: '--preset arm64-android-snapdragon-release'

    steps:
      - name: Clone
        id: checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
          lfs: false

      - name: Build Llama.CPP for Hexagon Android
        id: build_llama_cpp_hexagon_android
        run: |
          if [[ "${{ matrix.build }}" == "arm64-snapdragon" ]]; then
            cp docs/backend/snapdragon/CMakeUserPresets.json .
          fi
          cmake ${{ matrix.defines }} -B build
          cmake --build build
          cmake --install build --prefix pkg-adb/llama.cpp

      - name: Upload Llama.CPP Hexagon Android Build Artifact
        if: ${{ always() && steps.build_llama_cpp_hexagon_android.outcome == 'success' }}
        uses: actions/upload-artifact@v6
        with:
          name: llama-cpp-android-${{ matrix.build }}
          path: pkg-adb/llama.cpp