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cmake_minimum_required(VERSION 3.12)
project(dnslite VERSION 0.1.0)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(PROJECT_NAMESPACE ${PROJECT_NAME})

include(GNUInstallDirs)
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")

option(BUILD_RESOLVER "Build dnsl-resolve" ON)
option(BUILD_TESTS "Build test program" OFF)

add_subdirectory(dnslite)
if(BUILD_RESOLVER)
    add_subdirectory(resolver)
endif()
if(BUILD_TESTS)
    add_subdirectory(vendor/Unity EXCLUDE_FROM_ALL)
    add_subdirectory(tests)
endif()

include(CMakePackageConfigHelpers)
configure_file(
    "Doxyfile.in"
    "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile"
)

find_package(Doxygen)
if (Doxygen_FOUND)
    doxygen_add_docs(doc
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        ALL CONFIG_FILE ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
    )
endif()

# configure_file(
#   ${CMAKE_CURRENT_SOURCE_DIR}/cmake/dnslite.pc.in
#    ${CMAKE_CURRENT_BINARY_DIR}/dnslite.pc
#    @ONLY
# )
configure_package_config_file(
    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/${PROJECT_NAMESPACE}Config.cmake.in
    ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAMESPACE}Config.cmake
    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake
)

# install(
#    FILES ${CMAKE_CURRENT_BINARY_DIR}/dnslite.pc
#    DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
# )

install(
    FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAMESPACE}Config.cmake
    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAMESPACE}
)

install(TARGETS dnslite
    EXPORT ${PROJECT_NAMESPACE}Core
    COMPONENT Core

    FILE_SET api_headers DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAMESPACE}
    FILE_SET generated_headers DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAMESPACE}
)

install(TARGETS dnsl-resolve)

install(EXPORT ${PROJECT_NAMESPACE}Core
    FILE ${PROJECT_NAMESPACE}Core.cmake
    NAMESPACE ${PROJECT_NAMESPACE}::
    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAMESPACE}
)

if (Doxygen_FOUND)
    install(
        DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/html"
        TYPE DOC
    )
    install(
        DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/man/man3"
        TYPE MAN
    )
endif()

set(CPACK_PACKAGE_NAME "${PROJECT_NAMESPACE}")
set(CPACK_PACKAGE_VENDOR "Samuel Johnson")
set(CPACK_PACKAGE_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
set(CPACK_PACKAGE_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
set(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "DnsLite - a simple recursive DNS resolver implementation")
set(CPACK_PACKAGE_CONTACT "[email protected]")
set(CPACK_PACKAGE_HOMEPAGE_URL "https://git.paterissa.net/dnslite")

set(CPACK_GENERATOR "TGZ")

find_program(DPKG_CMD dpkg)
if(DPKG_CMD)
    list(APPEND CPACK_GENERATOR "DEB")
endif()

find_program(RPMBUILD_CMD rpmbuild)
if(RPMBUILD_CMD)
    list(APPEND CPACK_GENERATOR "RPM")
endif()

include(CPack)