cmake_minimum_required(VERSION 3.20.2)

project(opensilecs VERSION 2.5.0)

include(CTest)

enable_testing()

option(BUILD_COMMUNICATION_LIB_ONLY "Setup only the Silecs communication library." OFF)
option(ADD_LATEST_LINK "Link this install release as latest." ON)

set(GSI_SILECS_PATH "/common/usr/cscofe/silecs" CACHE STRING "GSI_SILECS_PATH")
set(BUILD_TARGET "x86_64" CACHE STRING "BUILD_TARGET")

# Use, i.e. don't skip the full RPATH for the build tree.
set(CMAKE_SKIP_BUILD_RPATH FALSE)

# When building, don't use the install RPATH already (but later on when installing).
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)

# Add the automatically determined parts of the RPATH which point to directories outside the build
# tree to the install RPATH.
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

if (BUILD_COMMUNICATION_LIB_ONLY)
    add_subdirectory(silecs-communication-cpp)
else()
    add_subdirectory(silecs_cli)
    add_subdirectory(silecs-codegen)
    add_subdirectory(silecs-model)
    add_subdirectory(silecs-communication-cpp)
    add_subdirectory(silecs-cli-client)
    add_subdirectory(silecs-diagnostic-cpp)

    # Create a silecs_environment file which can be sourced to use the silecs command line tools.
    FILE(WRITE ${CMAKE_BINARY_DIR}/silecs_environment
        "SILECS_VERSION=${CMAKE_PROJECT_VERSION}\n"
        "export PATH=${CMAKE_INSTALL_PREFIX}/\$SILECS_VERSION/silecs-cli:\${PATH}\n"
        "export PATH=${CMAKE_INSTALL_PREFIX}/\$SILECS_VERSION/silecs-cli-client/bin/x86_64:\${PATH}\n"
        "export PATH=${CMAKE_INSTALL_PREFIX}/\$SILECS_VERSION/silecs-diagnostic-cpp/bin/x86_64:\${PATH}\n"
    )

    # The silecs_environment file is released/installed together with the other sub-projects.
    install(
        FILES ${CMAKE_BINARY_DIR}/silecs_environment
        DESTINATION ${CMAKE_INSTALL_PREFIX}/${CMAKE_PROJECT_VERSION}/
    )
endif()

if(ADD_LATEST_LINK)
    # Symlink this release as latest.
    install(CODE "execute_process( \
        COMMAND ${CMAKE_COMMAND} -E create_symlink \
        ${CMAKE_INSTALL_PREFIX}/${CMAKE_PROJECT_VERSION} \
        ${CMAKE_INSTALL_PREFIX}/latest )"
    )
endif()