build-android-lua.yml

name: Build and Release Android Lua Libraries
# 仓库写入权限
permissions:
  contents: write

on:
  workflow_dispatch:  # 允许手动触发
  push:
    tags:
      - 'android-lua-v*'  # 当推送标签时自动触发发布

env:
  LUA_VERSION: 5.4.8
  LUA_CJSON_VERSION: 2.1.0.15
  ANDROID_NDK_VERSION: r26b
  ANDROID_API_LEVEL: 21
  CACHE_VERSION: v1  # 缓存版本，当NDK或工具链更新时修改此值

jobs:
  build-android:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        architecture: [armeabi-v7a, arm64-v8a, x86, x86_64]
    
    outputs:
      output_dir: ${{ steps.set_outputs.outputs.output_dir }}
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
    
    - name: Cache Android NDK
      id: cache-ndk
      uses: actions/cache@v4
      with:
        path: android-ndk-${{ env.ANDROID_NDK_VERSION }}
        key: android-ndk-${{ env.ANDROID_NDK_VERSION }}-${{ env.CACHE_VERSION }}
    
    - name: Download and extract Android NDK (if not cached)
      if: steps.cache-ndk.outputs.cache-hit != 'true'
      run: |
        wget -q https://dl.google.com/android/repository/android-ndk-${{ env.ANDROID_NDK_VERSION }}-linux.zip
        unzip -q android-ndk-${{ env.ANDROID_NDK_VERSION }}-linux.zip
        rm android-ndk-${{ env.ANDROID_NDK_VERSION }}-linux.zip
    
    - name: Set NDK environment
      run: |
        export ANDROID_NDK_HOME=$PWD/android-ndk-${{ env.ANDROID_NDK_VERSION }}
        echo "ANDROID_NDK_HOME=$ANDROID_NDK_HOME" >> $GITHUB_ENV
    
    - name: Cache Lua source code
      id: cache-lua
      uses: actions/cache@v4
      with:
        path: lua-${{ env.LUA_VERSION }}
        key: lua-source-${{ env.LUA_VERSION }}
    
    - name: Download Lua source code (if not cached)
      if: steps.cache-lua.outputs.cache-hit != 'true'
      run: |
        wget -q https://www.lua.org/ftp/lua-${{ env.LUA_VERSION }}.tar.gz
        tar -xzf lua-${{ env.LUA_VERSION }}.tar.gz
        rm lua-${{ env.LUA_VERSION }}.tar.gz
        
    - name: Cache lua-cjson source
      id: cache-lua-cjson
      uses: actions/cache@v4
      with:
        path: lua-cjson
        key: lua-cjson-${{ env.LUA_CJSON_VERSION }}

    - name: Download lua-cjson (if not cached)
      if: steps.cache-lua-cjson.outputs.cache-hit != 'true'
      run: |
        git clone --depth 1 --branch ${{ env.LUA_CJSON_VERSION }} \
          https://github.com/openresty/lua-cjson.git

    - name: Setup toolchain
      id: set_toolchain
      run: |
        case "${{ matrix.architecture }}" in
          "armeabi-v7a")
            export TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi${{ env.ANDROID_API_LEVEL }}-clang
            export ARCH=arm
            export STRIP=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip
            ;;
          "arm64-v8a")
            export TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android${{ env.ANDROID_API_LEVEL }}-clang
            export ARCH=aarch64
            export STRIP=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip
            ;;
          "x86")
            export TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android${{ env.ANDROID_API_LEVEL }}-clang
            export ARCH=i686
            export STRIP=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip
            ;;
          "x86_64")
            export TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/x86_64-linux-android${{ env.ANDROID_API_LEVEL }}-clang
            export ARCH=x86_64
            export STRIP=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip
            ;;
        esac
        echo "TOOLCHAIN=$TOOLCHAIN" >> $GITHUB_ENV
        echo "ARCH=$ARCH" >> $GITHUB_ENV
        echo "STRIP=$STRIP" >> $GITHUB_ENV
    
    - name: Build Lua for Android
      run: |
        cd lua-${{ env.LUA_VERSION }}
        make clean
        
        # Create custom Makefile for Android
        cat > src/Makefile.android << 'EOF'
        CC=${{ env.TOOLCHAIN }}
        AR=${{ env.TOOLCHAIN }}ar
        RANLIB=${{ env.TOOLCHAIN }}ranlib
        STRIP=${{ env.STRIP }}
        MYCFLAGS=-fPIC -O2 -I$(LUA_INC) -DLUA_USE_DLOPEN
        MYLDFLAGS=-shared -Wl,-z,global
        MYLIBS=-ldl -lm
        PLAT= generic
        
        CORE_O=	lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o \
              	lmem.o lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o \
              	ltm.o lundump.o lvm.o lzio.o
        LIB_O=	lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o lstrlib.o \
        	      lutf8lib.o loadlib.o lcorolib.o linit.o
        
        LUA_T=	liblua.so
        LUA_O=	lua.o
        
        LUAC_T=	luac
        LUAC_O=	luac.o
        
        ALL_T= $(CORE_T) $(LUA_T)
        ALL_O= $(CORE_O) $(LUA_O) $(LIB_O)
        ALL_A= $(CORE_T)
        
        all:	$(ALL_T)
        
        o:	$(ALL_O)
        
        $(LUA_T): $(CORE_O) $(LIB_O)
        	$(CC) -o $@ $(MYLDFLAGS) $(CORE_O) $(LIB_O) $(MYLIBS)
        	$(STRIP) --strip-unneeded $@
        
        $(LUAC_T): $(LUAC_O) $(LIB_O)
        	$(CC) -o $@ $(MYLDFLAGS) $(LUAC_O) $(LIB_O) $(CORE_O) $(MYLIBS)
          
        clean:
        	$(RM) $(ALL_T) $(ALL_O)
        
        .c.o:
        	$(CC) $(MYCFLAGS) -c $<
        EOF
        
        # Build Lua
        make -C src -f Makefile.android
        
        # Create output directory with version in name
        OUTPUT_NAME=liblua-${{ env.LUA_VERSION }}-android-${{ matrix.architecture }}.so
        mkdir -p ../output/android/${{ matrix.architecture }}
        cp src/liblua.so ../output/android/${{ matrix.architecture }}/$OUTPUT_NAME
        
        # Also keep the original name for compatibility
        cp src/liblua.so ../output/android/${{ matrix.architecture }}/liblua.so
        
        echo "Built: $OUTPUT_NAME"
        
    - name: Build lua-cjson for Android
      run: |
        LUA_SRC=$PWD/lua-${{ env.LUA_VERSION }}
        CJSON_SRC=$PWD/lua-cjson
    
        cd $CJSON_SRC
    
        make clean || true
    
        # 编译 cjson
        ${{ env.TOOLCHAIN }} \
          -fPIC -O2 -shared \
          -I$LUA_SRC/src \
          -DLUA_USE_DLOPEN \
          -o cjson.so \
          lua_cjson.c strbuf.c fpconv.c \
          -lm
    
        # Strip
        ${{ env.STRIP }} --strip-unneeded cjson.so
    
        # 输出
        OUTPUT_NAME=cjson-${{ env.LUA_CJSON_VERSION }}-android-${{ matrix.architecture }}.so
        mkdir -p ../output/android/${{ matrix.architecture }}
        cp cjson.so ../output/android/${{ matrix.architecture }}/$OUTPUT_NAME
    
        echo "Built cjson.so for ${{ matrix.architecture }}"

    - name: Set output variables
      id: set_outputs
      run: |
        echo "output_dir=output" >> $GITHUB_OUTPUT
    
    - name: Upload artifacts
      uses: actions/upload-artifact@v4
      with:
        name: lua-${{ env.LUA_VERSION }}-android-${{ matrix.architecture }}
        path: output/android/${{ matrix.architecture }}/
        retention-days: 7

  create-release:
    runs-on: ubuntu-latest
    needs: build-android
    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
  
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
  
      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts
          pattern: lua-*-android-*
          merge-multiple: true
  
      - name: List downloaded files (debug)
        run: |
          echo "Downloaded artifacts:"
          find artifacts -type f
  
      - name: Create Release
        uses: softprops/action-gh-release@v1
        with:
          name: Lua ${{ env.LUA_VERSION }} for Android
          tag_name: Lua-v${{ env.LUA_VERSION }}-for-Android
          files: |
            artifacts/**/liblua-*-android-*.so
            artifacts/**/cjson-*-android-*.so
          generate_release_notes: false
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}