# Copyright (c) 2016 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.

INCLUDE(ExternalProject)

SET(ROCKSDB_PREFIX_DIR ${THIRD_PARTY_PATH}/rocksdb)
SET(ROCKSDB_INSTALL_DIR ${THIRD_PARTY_PATH}/install/rocksdb)
SET(ROCKSDB_INCLUDE_DIR "${ROCKSDB_INSTALL_DIR}/include" CACHE PATH "rocksdb include directory." FORCE)
SET(ROCKSDB_LIBRARIES "${ROCKSDB_INSTALL_DIR}/lib/librocksdb.a" CACHE FILEPATH "rocksdb library." FORCE)
SET(ROCKSDB_CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
INCLUDE_DIRECTORIES(${ROCKSDB_INCLUDE_DIR})

ExternalProject_Add(
    extern_rocksdb
    ${EXTERNAL_PROJECT_LOG_ARGS}
    PREFIX ${ROCKSDB_PREFIX_DIR}
    GIT_REPOSITORY "https://github.com/facebook/rocksdb"
    GIT_TAG v6.10.1
    UPDATE_COMMAND ""
    CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
               -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
               -DWITH_BZ2=OFF
               -DWITH_GFLAGS=OFF
               -DCMAKE_CXX_FLAGS=${ROCKSDB_CMAKE_CXX_FLAGS}
               -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
#    BUILD_BYPRODUCTS ${ROCKSDB_PREFIX_DIR}/src/extern_rocksdb/librocksdb.a
    INSTALL_COMMAND mkdir -p ${ROCKSDB_INSTALL_DIR}/lib/ 
        && cp ${ROCKSDB_PREFIX_DIR}/src/extern_rocksdb/librocksdb.a ${ROCKSDB_LIBRARIES}
        && cp -r ${ROCKSDB_PREFIX_DIR}/src/extern_rocksdb/include ${ROCKSDB_INSTALL_DIR}/
    BUILD_IN_SOURCE 1
)

ADD_DEPENDENCIES(extern_rocksdb snappy)

ADD_LIBRARY(rocksdb STATIC IMPORTED GLOBAL)
SET_PROPERTY(TARGET rocksdb PROPERTY IMPORTED_LOCATION ${ROCKSDB_LIBRARIES})
ADD_DEPENDENCIES(rocksdb extern_rocksdb)

LIST(APPEND external_project_dependencies rocksdb)