CMakeLists.txt

cmake_minimum_required(VERSION 3.15)

project(libudp VERSION 1.0.0 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

set(LIBNET_SOURCES udp/src/socket.cc mesh/src/mesh.cc mesh/src/node.cc cli/src/cli.cc)

SET (EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/bin)

add_library(${PROJECT_NAME} STATIC ${LIBNET_SOURCES})

IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
  ADD_DEFINITIONS(-DUNIV_LINUX)
ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux")

find_package(Threads REQUIRED)

target_include_directories(${PROJECT_NAME}
  PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
  PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/src
)

target_link_libraries(${PROJECT_NAME} PRIVATE uring)

option(BUILD_TESTING "Build tests" ON)
option(BUILD_EXAMPLES "Build examples" ON)

if(BUILD_EXAMPLES)
  add_subdirectory(examples)
endif()

# Testing configuration
if(BUILD_TESTING)
  message(STATUS "Building tests")

  enable_testing()

  # Include FetchContent for downloading GTest
  include(FetchContent)

  # Download and configure Google Test
  FetchContent_Declare(
    googletest
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG release-1.12.1
  )

  # For Windows: Prevent overriding the parent project's compiler/linker settings
  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
  FetchContent_MakeAvailable(googletest)

  # Create test executable
  add_executable(libudp_tests tests/udp_socket_test.cc)
  add_executable(cli_tests tests/cli_tests cli/src/cli.cc)
  add_executable(cli_collection_tests tests/cli_tests cli/src/cli.cc)

  # Link against our library and GTest
  target_link_libraries(libudp_tests
    PRIVATE
    ${PROJECT_NAME}
    GTest::gtest_main
    GTest::gmock_main
    ${PROJECT_NAME}
    uring
  )

  target_link_libraries(cli_tests
    PRIVATE
    ${PROJECT_NAME}
    GTest::gtest_main
    GTest::gmock_main
    ${PROJECT_NAME}
  )

  target_link_libraries(cli_collection_tests
    PRIVATE
    ${PROJECT_NAME}
    GTest::gtest_main
    GTest::gmock_main
    ${PROJECT_NAME}
  )

  # Include test directory
  target_include_directories(libudp_tests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests ${CMAKE_CURRENT_SOURCE_DIR}/include)
  target_include_directories(cli_tests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests ${CMAKE_CURRENT_SOURCE_DIR}/include)
  target_include_directories(cli_collection_tests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests ${CMAKE_CURRENT_SOURCE_DIR}/include)

  # Discover tests
  include(GoogleTest)
  gtest_discover_tests(libudp_tests)
  gtest_discover_tests(cli_tests)

  # Add custom target for running tests with detailed output
  add_custom_target(test_verbose COMMAND ${CMAKE_CTEST_COMMAND} --verbose DEPENDS libudp_tests cli_tests)
 else()
  message(STATUS "Tests disabled")
endif()

# Installation
include(GNUInstallDirs)

install(TARGETS ${PROJECT_NAME}
  EXPORT libudp-targets
  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
  INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)

install(DIRECTORY include/
  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)

# External dependencies downloaded from GitHub.
include(deps/git-submodule-init.cmake)

add_dependencies(${PROJECT_NAME} liburing)