#!/bin/bash
set -e

#####################################################################################################
# 1. global variables, you can change them according to your requirements
#####################################################################################################
# armv8 or armv7hf or armv7, default armv8.
ARCH=armv8
# gcc or clang, default gcc.
TOOLCHAIN=gcc
# ON or OFF, default OFF.
WITH_EXTRA=OFF
# controls whether to compile python lib, default is OFF.
WITH_PYTHON=OFF
PY_VERSION=""
# controls whether to compile cv functions into lib, default is OFF.
WITH_CV=OFF
# controls whether to print log information, default is ON.
WITH_LOG=ON
# controls whether to throw the exception when error occurs, default is OFF 
WITH_EXCEPTION=OFF
# options of striping lib according to input model.
WITH_STRIP=OFF
OPTMODEL_DIR=""
# options of compiling OPENCL lib.
WITH_OPENCL=OFF
# options of compiling rockchip NPU lib.
WITH_ROCKCHIP_NPU=OFF
ROCKCHIP_NPU_SDK_ROOT=""
# options of compiling baidu XPU lib.
WITH_BAIDU_XPU=OFF
BAIDU_XPU_SDK_ROOT=""
# options of adding training ops
WITH_TRAIN=OFF
# num of threads used during compiling..
readonly NUM_PROC=${LITE_BUILD_THREADS:-4}
#####################################################################################################




#####################################################################################################
# 2. local variables, these variables should not be changed.
#####################################################################################################
# url that stores third-party zip file to accelerate third-paty lib installation
readonly THIRDPARTY_TAR=https://paddle-inference-dist.bj.bcebos.com/PaddleLite/third-party-05b862.tar.gz
# absolute path of Paddle-Lite.
readonly workspace=$PWD/$(dirname $0)/../../
# basic options for linux compiling.
readonly CMAKE_COMMON_OPTIONS="-DWITH_LITE=ON \
                            -DLITE_WITH_ARM=ON \
                            -DLITE_WITH_X86=OFF \
                            -DARM_TARGET_OS=armlinux \
                            -DLITE_WITH_LIGHT_WEIGHT_FRAMEWORK=ON \
                            -DWITH_TESTING=OFF"
# mutable options for linux compiling.
function init_cmake_mutable_options {
    cmake_mutable_options="-DARM_TARGET_ARCH_ABI=$ARCH \
                        -DARM_TARGET_LANG=$TOOLCHAIN \
                        -DLITE_BUILD_EXTRA=$WITH_EXTRA \
                        -DLITE_WITH_PYTHON=$WITH_PYTHON \
                        -DPY_VERSION=$PY_VERSION \
                        -DLITE_WITH_CV=$WITH_CV \
                        -DLITE_WITH_LOG=$WITH_LOG \
                        -DLITE_WITH_EXCEPTION=$WITH_EXCEPTION \
                        -DLITE_BUILD_TAILOR=$WITH_STRIP \
                        -DLITE_OPTMODEL_DIR=$OPTMODEL_DIR \
                        -DLITE_WITH_OPENCL=$WITH_OPENCL \
                        -DLITE_WITH_RKNPU=$WITH_ROCKCHIP_NPU \
                        -DRKNPU_DDK_ROOT=$ROCKCHIP_NPU_SDK_ROOT \
                        -DLITE_WITH_XPU=$WITH_BAIDU_XPU \
                        -DXPU_SDK_ROOT=$BAIDU_XPU_SDK_ROOT \
                        -DLITE_WITH_TRAIN=$WITH_TRAIN"
}
#####################################################################################################





####################################################################################################
# 3. functions of prepare workspace before compiling
####################################################################################################

# 3.1 generate `__generated_code__.cc`, which is dependended by some targets in cmake.
# here we fake an empty file to make cmake works.
function prepare_workspace {
    local root_dir=$1
    local build_dir=$2
    # in build directory
    # 1. Prepare gen_code file
    GEN_CODE_PATH_PREFIX=$build_dir/lite/gen_code
    mkdir -p ${GEN_CODE_PATH_PREFIX}
    touch ${GEN_CODE_PATH_PREFIX}/__generated_code__.cc
    # 2.Prepare debug tool
    DEBUG_TOOL_PATH_PREFIX=$build_dir/lite/tools/debug
    mkdir -p ${DEBUG_TOOL_PATH_PREFIX}
    cp $root_dir/lite/tools/debug/analysis_tool.py ${DEBUG_TOOL_PATH_PREFIX}/
}


# 3.2 prepare source code of opencl lib
# here we bundle all cl files into a cc file to bundle all opencl kernels into a single lib
function prepare_opencl_source_code {
    local root_dir=$1
    local build_dir=$2
    # in build directory
    # Prepare opencl_kernels_source.cc file
    GEN_CODE_PATH_OPENCL=$root_dir/lite/backends/opencl
    rm -f GEN_CODE_PATH_OPENCL/opencl_kernels_source.cc
    OPENCL_KERNELS_PATH=$root_dir/lite/backends/opencl/cl_kernel
    mkdir -p ${GEN_CODE_PATH_OPENCL}
    touch $GEN_CODE_PATH_OPENCL/opencl_kernels_source.cc
    python $root_dir/lite/tools/cmake_tools/gen_opencl_code.py $OPENCL_KERNELS_PATH $GEN_CODE_PATH_OPENCL/opencl_kernels_source.cc 
}

# 3.3 prepare third_party libraries for compiling
# here we store third_party libraries into Paddle-Lite/third-party
function prepare_thirdparty {
    if [ ! -d $workspace/third-party -o -f $workspace/third-party-05b862.tar.gz ]; then
        rm -rf $workspace/third-party
        if [ ! -f $workspace/third-party-05b862.tar.gz ]; then
            wget $THIRDPARTY_TAR
        fi
        tar xzf third-party-05b862.tar.gz
    else
        git submodule update --init --recursive
    fi
}
####################################################################################################





####################################################################################################
# 4. compiling functions
####################################################################################################

# 4.1 function of tiny_publish compiling
# here we only compile light_api lib
function make_tiny_publish_so {
    is_tiny=${1:-ON}
    if [ "$WITH_PYTHON" = "ON" -a "$is_tiny" = "ON" ]; then
        echo "Warning: build full_publish to use python."
        is_tiny=OFF
    fi
    if [ "$WITH_TRAIN" = "ON" -a "$is_tiny" = "ON" ]; then
        echo "Warning: build full_publish to add training ops."
        is_tiny=OFF
    fi
    if [ "$BUILD_TAILOR" = "ON" -a "$OPTMODEL_DIR" = "" ]; then
        echo "Error: set OPTMODEL_DIR if BUILD_TAILOR is ON."
    fi

    if [ "$is_tiny" = "OFF" ]; then
        prepare_thirdparty
    fi

    build_dir=$workspace/build.lite.linux.$ARCH.$TOOLCHAIN
    if [ "${WITH_OPENCL}" = "ON" ]; then
       build_dir=${build_dir}.opencl
    fi

    if [ -d $build_dir ]; then
        rm -rf $build_dir
    fi
    mkdir -p $build_dir
    cd $build_dir

    prepare_workspace $workspace $build_dir

    if [ "${WITH_OPENCL}" = "ON" ]; then
       prepare_opencl_source_code $workspace $build_dir
    fi

    init_cmake_mutable_options
    cmake $workspace \
       ${CMAKE_COMMON_OPTIONS} \
       ${cmake_mutable_options} \
       -DLITE_ON_TINY_PUBLISH=$is_tiny

    if [ "${WITH_OPENCL}" = "ON" ]; then
       make opencl_clhpp -j$NUM_PROC 
    fi

    make publish_inference -j$NUM_PROC
    cd - > /dev/null
}
####################################################################################################

# 4.2 function of full_publish compiling
# here we compile both light_api lib and full_api lib
function make_full_publish_so {
    make_tiny_publish_so OFF
}
####################################################################################################

function print_usage {
    echo "--------------------------------------------------------------------------------------------------------------------------------------------------------"
    echo -e "| Methods of compiling Padddle-Lite Linux library:                                                                                                     |"
    echo "--------------------------------------------------------------------------------------------------------------------------------------------------------"
    echo -e "|  compile linux library: (armv8, gcc)                                                                                                                 |"
    echo -e "|     ./lite/tools/build_linux.sh                                                                                                                      |"
    echo -e "|  print help information:                                                                                                                             |"
    echo -e "|     ./lite/tools/build_linux.sh help                                                                                                                 |"
    echo -e "|                                                                                                                                                      |"
    echo -e "|  optional argument:                                                                                                                                  |"
    echo -e "|     --arch: (armv8|armv7hf|armv7), default is armv8                                                                                                  |"
    echo -e "|     --toolchain: (gcc|clang), defalut is gcc                                                                                                         |"
    echo -e "|     --with_extra: (OFF|ON); controls whether to publish extra operators and kernels for (sequence-related model such as OCR or NLP), default is OFF  |"
    echo -e "|     --with_python: (OFF|ON); controls whether to build python lib or whl, default is OFF                                                             |"
    echo -e "|     --python_version: (2.7|3.5|3.7); controls python version to compile whl, default is None                                                         |"
    echo -e "|     --with_cv: (OFF|ON); controls whether to compile cv functions into lib, default is OFF                                                           |"
    echo -e "|     --with_log: (OFF|ON); controls whether to print log information, default is ON                                                                   |"
    echo -e "|     --with_exception: (OFF|ON); controls whether to throw the exception when error occurs, default is OFF                                            |"
    echo -e "|                                                                                                                                                      |"
    echo -e "|  arguments of striping lib according to input model:                                                                                                 |"
    echo -e "|     ./lite/tools/build_linux.sh --with_strip=ON --opt_model_dir=YourOptimizedModelDir                                                                |"
    echo -e "|     --with_strip: (OFF|ON); controls whether to strip lib accrding to input model, default is OFF                                                    |"
    echo -e "|     --opt_model_dir: (absolute path to optimized model dir) required when compiling striped library                                                  |"
    echo -e "|  detailed information about striping lib:  https://paddle-lite.readthedocs.io/zh/latest/user_guides/library_tailoring.html                           |"
    echo -e "|                                                                                                                                                      |"
    echo -e "|  arguments of opencl library compiling:                                                                                                              |"
    echo -e "|     ./lite/tools/build_linux.sh --with_opencl=ON                                                                                                     |"
    echo -e "|     --with_opencl: (OFF|ON); controls whether to compile lib for opencl, default is OFF                                                              |"
    echo -e "|                                                                                                                                                      |"
    echo -e "|  arguments of rockchip npu library compiling:                                                                                                        |"
    echo -e "|     ./lite/tools/build_linux.sh --with_rockchip_npu=ON --rockchip_npu_sdk_root=YourRockchipNpuSdkPath                                                |"
    echo -e "|     --with_rockchip_npu: (OFF|ON); controls whether to compile lib for rockchip_npu, default is OFF                                                  |"
    echo -e "|     --rockchip_npu_sdk_root: (path to rockchip_npu DDK file) required when compiling rockchip_npu library                                            |"
    echo -e "|                                                                                                                                                      |"
    echo -e "|  arguments of baidu xpu library compiling:                                                                                                           |"
    echo -e "|     ./lite/tools/build_linux.sh --with_baidu_xpu=ON --baidu_xpu_sdk_root=YourBaiduXpuSdkPath                                                         |"
    echo -e "|     --with_baidu_xpu: (OFF|ON); controls whether to compile lib for baidu_xpu, default is OFF                                                        |"
    echo -e "|     --baidu_xpu_sdk_root: (path to baidu_xpu DDK file) required when compiling baidu_xpu library                                                     |"
    echo "--------------------------------------------------------------------------------------------------------------------------------------------------------"
    echo
}

function main {
    if [ -z "$1" ]; then
        # compiling result contains light_api lib only, recommanded.
        make_tiny_publish_so
        exit 0
    fi

    # Parse command line.
    for i in "$@"; do
        case $i in
            # armv8 or armv7hf or armv7, default armv8
            --arch=*)
                ARCH="${i#*=}"
                shift
                ;;
            # gcc or clang, default gcc
            --toolchain=*)
                TOOLCHAIN="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_extra=*)
                WITH_EXTRA="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_python=*)
                WITH_PYTHON="${i#*=}"
                shift
                ;;
            # 2.7 or 3.5 or 3.7, default is None
            --python_version=*)
                PY_VERSION="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_cv=*)
                WITH_CV="${i#*=}"
                shift
                ;;
            # ON or OFF, default ON
            --with_log=*)
                WITH_LOG="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_exception=*)
                WITH_EXCEPTION="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_strip=*)
                BUILD_TAILOR="${i#*=}"
                shift
                ;;
            # string, absolute path to optimized model dir
            --opt_model_dir=*)
                OPTMODEL_DIR="${i#*=}"
                shift
                ;;
            # compiling lib which can operate on opencl and cpu.
            --with_opencl=*)
                WITH_OPENCL="${i#*=}"
                shift
                ;;
            # compiling lib which can operate on rockchip npu.
            --with_rockchip_npu=*)
                WITH_ROCKCHIP_NPU="${i#*=}"
                shift
                ;;
            --rockchip_npu_sdk_root=*)
                ROCKCHIP_NPU_SDK_ROOT="${i#*=}"
                shift
                ;;
            # compiling lib which can operate on baidu xpu.
            --with_baidu_xpu=*)
                WITH_BAIDU_XPU="${i#*=}"
                shift
                ;;
            --baidu_xpu_sdk_root=*)
                BAIDU_XPU_SDK_ROOT="${i#*=}"
                shift
                ;;
            # ON or OFF, default OFF
            --with_train=*)
                WITH_TRAIN="${i#*=}"
                shift
                ;;
            # compiling result contains both light_api and cxx_api lib.
            full_publish)
                make_full_publish_so
                exit 0
                ;;
            # print help info
            help)
                print_usage
                exit 0
                ;;
            # unknown option
            *)
                echo "Error: unsupported argument \"${i#*=}\""
                print_usage
                exit 1
                ;;
        esac
    done
    # compiling result contains light_api lib only, recommanded.
    make_tiny_publish_so
}

main $@
