external-projects.cmake

# Here are registered all external projects
#
# Usage:
# add_dependencies(TARGET externalProjectName)
# target_link_libraries(TARGET PRIVATE ExternalLibraryName)

include(GNUInstallDirs)
include(ExternalProject)

set(EXTERNAL_PROJECTS_PREFIX ${CMAKE_BINARY_DIR}/external-projects)
set(EXTERNAL_PROJECTS_INSTALL_PREFIX ${EXTERNAL_PROJECTS_PREFIX}/installed)
set(RESTC_EXTERNAL_INSTALLED_LIB_DIR ${EXTERNAL_PROJECTS_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
link_directories(${RESTC_EXTERNAL_INSTALLED_LIB_DIR})

ExternalProject_Add(
    externalRapidJson
    PREFIX "${EXTERNAL_PROJECTS_PREFIX}"
    GIT_REPOSITORY "https://github.com/Tencent/rapidjson.git"
    GIT_TAG "master"
    CONFIGURE_COMMAND ""
    BUILD_COMMAND ""
    INSTALL_COMMAND ""
    LOG_DOWNLOAD ON
    LOG_INSTALL ON
    )

set(EXTERNAL_RAPIDJSON_INCLUDE_DIR ${EXTERNAL_PROJECTS_PREFIX}/src/externalRapidJson/include/rapidjson)

ExternalProject_Add(externalLogfault
    PREFIX "${EXTERNAL_PROJECTS_PREFIX}"
    GIT_REPOSITORY "https://github.com/jgaa/logfault.git"
    GIT_TAG "master"
    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${EXTERNAL_PROJECTS_INSTALL_PREFIX}
    		-DLOGFAULT_BUILD_TESTS=OFF
    )

message(STATUS "EXTERNAL_RAPIDJSON_INCLUDE_DIR: ${EXTERNAL_RAPIDJSON_INCLUDE_DIR}")

if (INSTALL_RAPIDJSON_HEADERS)
    install(DIRECTORY ${EXTERNAL_RAPIDJSON_INCLUDE_DIR} DESTINATION include)
endif()

include_directories(
     ${EXTERNAL_PROJECTS_PREFIX}/src/externalRapidJson/include
     ${EXTERNAL_PROJECTS_PREFIX}/src/externalLest/include
     ${EXTERNAL_PROJECTS_PREFIX}/installed/include
    )

# If we compile the tests; download and install gtest if it's not found on the target
# On ubuntu and debian, you can install `libgtest-dev` to avoid this step.
if (RESTC_CPP_WITH_UNIT_TESTS OR RESTC_CPP_WITH_FUNCTIONALT_TESTS)
    find_package(GTest)
    if (GTest_FOUND)
        message("Using installed googletest")
    else()
        message("Will download and install googletest as a cmake included project")
        set(DEPENDS_GTEST googletest)
        set(GTEST_LIBRARIES gtest)

        if (NOT DEFINED GTEST_TAG)
            set(GTEST_TAG "main")
        endif()

        message("GTEST_TAG: ${GTEST_TAG}")

        if (WIN32)
            set(GTEST_EXTRA_ARGS "-Dgtest_force_shared_crt=TRUE")
        endif()

        ExternalProject_Add(googletest
            GIT_TAG "${GTEST_TAG}"
            PREFIX "${EXTERNAL_PROJECTS_PREFIX}"
            GIT_REPOSITORY https://github.com/google/googletest.git
            CMAKE_ARGS
                -DCMAKE_INSTALL_PREFIX=${EXTERNAL_PROJECTS_INSTALL_PREFIX}
                -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
                -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
                -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
                ${GTEST_EXTRA_ARGS}
        )
        set(GTEST_LIB_DIR ${RESTC_EXTERNAL_INSTALLED_LIB_DIR})
    endif()
endif()