# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# make package for paddle fluid shared and static library
function(copy TARGET)
    set(options "")
    set(oneValueArgs "")
    set(multiValueArgs SRCS DSTS DEPS)
    cmake_parse_arguments(copy_lib "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
    set(fluid_lib_dist_dep ${TARGET} ${fluid_lib_dist_dep} PARENT_SCOPE)

    list(LENGTH copy_lib_SRCS copy_lib_SRCS_len)
    list(LENGTH copy_lib_DSTS copy_lib_DSTS_len)
    if(NOT ${copy_lib_SRCS_len} EQUAL ${copy_lib_DSTS_len})
        message(FATAL_ERROR "${TARGET} source numbers are not equal to destination numbers")
    endif()
    math(EXPR len "${copy_lib_SRCS_len} - 1")

    add_custom_target(${TARGET} DEPENDS ${copy_lib_DEPS})
    foreach(index RANGE ${len})
        list(GET copy_lib_SRCS ${index} src)
        list(GET copy_lib_DSTS ${index} dst)
        if (WIN32) 
        # windows cmd shell will not expand wildcard automatically.
        # below expand the files,libs and copy them by rules.
        file(GLOB header_files ${src} "*.h")
        file(GLOB static_lib_files ${src} "*.lib")
        file(GLOB dll_lib_files ${src} "*.dll")
        set(src_files ${header_files} ${static_lib_files} ${dll_lib_files})

        if (NOT "${src_files}" STREQUAL "")
        list(REMOVE_DUPLICATES src_files)
        endif()
        add_custom_command(TARGET ${TARGET} PRE_BUILD 
          COMMAND ${CMAKE_COMMAND} -E make_directory  "${dst}"
          )
        foreach(src_file ${src_files}) 
          add_custom_command(TARGET ${TARGET} PRE_BUILD 
          COMMAND ${CMAKE_COMMAND} -E copy "${src_file}" "${dst}"
          COMMENT "copying ${src_file} -> ${dst}")
        endforeach()
        else(WIN32) # not windows
          add_custom_command(TARGET ${TARGET} PRE_BUILD 
          COMMAND mkdir -p "${dst}"
          COMMAND cp -r "${src}" "${dst}"
          COMMENT "copying ${src} -> ${dst}")
        endif(WIN32)
    endforeach()
endfunction()

# third party
set(dst_dir "${FLUID_INSTALL_DIR}/third_party/eigen3")
copy(eigen3_lib
  SRCS ${EIGEN_INCLUDE_DIR}/Eigen/Core ${EIGEN_INCLUDE_DIR}/Eigen/src ${EIGEN_INCLUDE_DIR}/unsupported/Eigen
  DSTS ${dst_dir}/Eigen ${dst_dir}/Eigen ${dst_dir}/unsupported
  DEPS eigen3
)

set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/gflags")
copy(gflags_lib
  SRCS ${GFLAGS_INCLUDE_DIR} ${GFLAGS_LIBRARIES}
  DSTS ${dst_dir} ${dst_dir}/lib
  DEPS gflags
)

set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/glog")
copy(glog_lib
  SRCS ${GLOG_INCLUDE_DIR} ${GLOG_LIBRARIES}
  DSTS ${dst_dir} ${dst_dir}/lib
  DEPS glog
)

set(dst_dir "${FLUID_INSTALL_DIR}/third_party/boost/")
copy(boost_lib
  SRCS ${BOOST_INCLUDE_DIR}/boost
  DSTS ${dst_dir}
  DEPS boost
)
if(NOT WIN32)
set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/xxhash")
copy(xxhash_lib
  SRCS ${XXHASH_INCLUDE_DIR} ${XXHASH_LIBRARIES}
  DSTS ${dst_dir} ${dst_dir}/lib
  DEPS xxhash
)
endif(NOT WIN32)

if(NOT PROTOBUF_FOUND)
    set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/protobuf")
    copy(protobuf_lib
      SRCS ${PROTOBUF_INCLUDE_DIR} ${PROTOBUF_LIBRARY}
      DSTS ${dst_dir} ${dst_dir}/lib
      DEPS extern_protobuf
    )
endif()

if(NOT CBLAS_FOUND)
    set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/openblas")
    copy(openblas_lib
      SRCS ${CBLAS_INSTALL_DIR}/lib ${CBLAS_INSTALL_DIR}/include
      DSTS ${dst_dir} ${dst_dir}
      DEPS extern_openblas
    )
elseif (WITH_MKLML)
    set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/mklml")
    copy(mklml_lib
      SRCS ${MKLML_LIB} ${MKLML_IOMP_LIB} ${MKLML_INC_DIR}
      DSTS ${dst_dir}/lib ${dst_dir}/lib ${dst_dir}
      DEPS mklml
    )
endif()

if(WITH_MKLDNN)
  set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/mkldnn")
  copy(mkldnn_lib
    SRCS ${MKLDNN_INC_DIR} ${MKLDNN_SHARED_LIB}
    DSTS ${dst_dir} ${dst_dir}/lib
    DEPS mkldnn
  )
endif()

if (NOT WIN32)
if(NOT MOBILE_INFERENCE AND NOT RPI)
  set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/snappy")
  copy(snappy_lib
    SRCS ${SNAPPY_INCLUDE_DIR} ${SNAPPY_LIBRARIES}
    DSTS ${dst_dir} ${dst_dir}/lib
    DEPS snappy)

  set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/snappystream")
  copy(snappystream_lib
    SRCS ${SNAPPYSTREAM_INCLUDE_DIR} ${SNAPPYSTREAM_LIBRARIES}
    DSTS ${dst_dir} ${dst_dir}/lib
    DEPS snappystream)

  set(dst_dir "${FLUID_INSTALL_DIR}/third_party/install/zlib")
  copy(zlib_lib
    SRCS ${ZLIB_INCLUDE_DIR} ${ZLIB_LIBRARIES}
    DSTS ${dst_dir} ${dst_dir}/lib
    DEPS zlib)
endif()
endif(NOT WIN32)

# paddle fluid module
set(src_dir "${PADDLE_SOURCE_DIR}/paddle/fluid")
set(dst_dir "${FLUID_INSTALL_DIR}/paddle/fluid")
set(module "framework")
if (NOT WIN32)
set(framework_lib_deps framework_py_proto)
endif(NOT WIN32)
copy(framework_lib DEPS ${framework_lib_deps}
  SRCS ${src_dir}/${module}/*.h ${src_dir}/${module}/details/*.h ${PADDLE_BINARY_DIR}/paddle/fluid/framework/framework.pb.h
       ${src_dir}/${module}/ir/*.h
  DSTS ${dst_dir}/${module} ${dst_dir}/${module}/details ${dst_dir}/${module} ${dst_dir}/${module}/ir
)

set(module "memory")
copy(memory_lib
  SRCS ${src_dir}/${module}/*.h ${src_dir}/${module}/detail/*.h
  DSTS ${dst_dir}/${module} ${dst_dir}/${module}/detail
)

set(inference_deps paddle_fluid_shared paddle_fluid)

set(module "inference/api")
if (WITH_ANAKIN AND WITH_MKL)
    copy(anakin_inference_lib DEPS paddle_inference_api inference_anakin_api
        SRCS
        ${PADDLE_BINARY_DIR}/paddle/fluid/inference/api/libinference_anakin_api* # compiled anakin api
        ${ANAKIN_INSTALL_DIR} # anakin release
        DSTS ${FLUID_INSTALL_DIR}/third_party/install/anakin ${FLUID_INSTALL_DIR}/third_party/install/anakin)
     list(APPEND inference_deps anakin_inference_lib)
endif()

set(module "inference")
copy(inference_lib DEPS ${inference_deps}
  SRCS ${src_dir}/${module}/*.h ${PADDLE_BINARY_DIR}/paddle/fluid/inference/libpaddle_fluid.*
       ${src_dir}/${module}/api/paddle_inference_api.h
       ${PADDLE_BINARY_DIR}/paddle/fluid/inference/api/paddle_inference_pass.h
  DSTS ${dst_dir}/${module} ${dst_dir}/${module} ${dst_dir}/${module} ${dst_dir}/${module}
)

set(module "platform")
copy(platform_lib DEPS profiler_py_proto
  SRCS ${src_dir}/${module}/*.h ${src_dir}/${module}/dynload/*.h ${src_dir}/${module}/details/*.h
  DSTS ${dst_dir}/${module} ${dst_dir}/${module}/dynload ${dst_dir}/${module}/details
)

set(module "string")
copy(string_lib
  SRCS ${src_dir}/${module}/*.h ${src_dir}/${module}/tinyformat/*.h
  DSTS ${dst_dir}/${module} ${dst_dir}/${module}/tinyformat
)

set(module "pybind")
copy(pybind_lib
  SRCS ${CMAKE_CURRENT_BINARY_DIR}/paddle/fluid/${module}/pybind.h
  DSTS ${dst_dir}/${module}
)

# CMakeCache Info
copy(cmake_cache
  SRCS ${CMAKE_CURRENT_BINARY_DIR}/CMakeCache.txt
  DSTS ${FLUID_INSTALL_DIR})

# This command generates a complete fluid library for both train and inference
add_custom_target(fluid_lib_dist DEPENDS ${fluid_lib_dist_dep})

# Following commands generate a inference-only fluid library
# third_party, version.txt and CMakeCache.txt are the same position with ${FLUID_INSTALL_DIR}
copy(third_party DEPS fluid_lib_dist
  SRCS ${FLUID_INSTALL_DIR}/third_party ${FLUID_INSTALL_DIR}/CMakeCache.txt
  DSTS ${FLUID_INFERENCE_INSTALL_DIR} ${FLUID_INFERENCE_INSTALL_DIR}
)

# only need libpaddle_fluid.so/a and paddle_inference_api.h for inference-only library
copy(inference_api_lib DEPS fluid_lib_dist
  SRCS ${FLUID_INSTALL_DIR}/paddle/fluid/inference/libpaddle_fluid.*
       ${FLUID_INSTALL_DIR}/paddle/fluid/inference/paddle_inference_api.h
  DSTS ${FLUID_INFERENCE_INSTALL_DIR}/paddle/lib ${FLUID_INFERENCE_INSTALL_DIR}/paddle/include
)

add_custom_target(inference_lib_dist DEPENDS third_party inference_api_lib)

# paddle fluid version
function(version version_file)
  execute_process(
    COMMAND ${GIT_EXECUTABLE} log --pretty=format:%H -1
    WORKING_DIRECTORY ${PADDLE_SOURCE_DIR}
    OUTPUT_VARIABLE PADDLE_GIT_COMMIT)
  file(WRITE ${version_file}
    "GIT COMMIT ID: ${PADDLE_GIT_COMMIT}\n"
    "WITH_MKL: ${WITH_MKL}\n"
    "WITH_MKLDNN: ${WITH_MKLDNN}\n"
    "WITH_GPU: ${WITH_GPU}\n")
  if(WITH_GPU)
    file(APPEND ${version_file}
      "CUDA version: ${CUDA_VERSION}\n"
      "CUDNN version: v${CUDNN_MAJOR_VERSION}\n")
  endif()
endfunction()
version(${FLUID_INSTALL_DIR}/version.txt)
version(${FLUID_INFERENCE_INSTALL_DIR}/version.txt)