CMakeLists.txt

cmake_minimum_required(VERSION 3.5)
project(gaia-web
        VERSION 0.5.3 
        LANGUAGES CXX C)

configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_SOURCE_DIR}/include/config.h)
configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/version.in  ${CMAKE_CURRENT_SOURCE_DIR}/www/version.html)

include(CheckIncludeFileCXX)

check_include_file_cxx(any HAS_ANY)
check_include_file_cxx(string_view HAS_STRING_VIEW)
check_include_file_cxx(coroutine HAS_COROUTINE)

# uncomment to set a default CXX standard for the external tools like clang-tidy and cppcheck
# and the targets that do not specify a standard.
# If not set, the latest supported standard for your compiler is used
# You can later set fine-grained standards for each target using `target_compile_features`
# Note: linking together projects compiled with different C++ standards may work, but
# it is not recommended because of possible issues with ABI
set(CMAKE_CXX_STANDARD 20)

# strongly encouraged to enable this globally to avoid conflicts between
# -Wpedantic being enabled and -std=c++20 and -std=gnu++20 for example
# when compiling with PCH enabled
set(CMAKE_CXX_EXTENSIONS        ON)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Git)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
# Update submodules as needed
    option(GIT_SUBMODULE "Update submodules with remote" ON)
    if(GIT_SUBMODULE)
        message(STATUS "Submodule update")
        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive --remote -f
                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                        RESULT_VARIABLE GIT_SUBMOD_RESULT)
        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
            message(FATAL_ERROR "git submodule update --init --recursive --remote -f : failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
        endif()
    endif()
endif()

if(NOT EXISTS "${PROJECT_SOURCE_DIR}/submodules/drogon/CMakeLists.txt")
    message(FATAL_ERROR "The submodules/drogon were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()

if(NOT EXISTS "${PROJECT_SOURCE_DIR}/submodules/tclap/CMakeLists.txt")
    message(FATAL_ERROR "The submodules/tclap were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()

if (NOT TARGET TCLAP)
    add_subdirectory(submodules/tclap)
endif()

include_directories(
    ${CMAKE_CURRENT_SOURCE_DIR}/include
    ${CMAKE_CURRENT_SOURCE_DIR}/include/views
    ${CMAKE_CURRENT_SOURCE_DIR}/include/controllers
    ${CMAKE_CURRENT_SOURCE_DIR}/submodules/tclap/include/
)

add_executable(${PROJECT_NAME} src/main.cpp)

# ##############################################################################
# If you include the drogon source code locally in your project, use this method
# to add drogon 
# add_subdirectory(drogon) 
# target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
add_subdirectory(submodules/drogon)
target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
#
# and comment out the following lines
#find_package(Drogon CONFIG REQUIRED)
#target_link_libraries(${PROJECT_NAME} PRIVATE Drogon::Drogon)

# ##############################################################################

if (CMAKE_CXX_STANDARD LESS 17)
    # With C++14, use boost to support any, string_view and filesystem
    message(STATUS "use c++14")
    find_package(Boost 1.61.0 REQUIRED)
    target_link_libraries(${PROJECT_NAME} PUBLIC Boost::boost)
elseif (CMAKE_CXX_STANDARD LESS 20)
    message(STATUS "use c++17")
else ()
    message(STATUS "use c++20")
endif ()

#aux_source_directory(controllers CTL_SRC)
#aux_source_directory(filters FILTER_SRC)
#aux_source_directory(plugins PLUGIN_SRC)
#aux_source_directory(models MODEL_SRC)

file( GLOB_RECURSE 
      PRJ_INCLUDE
      ${CMAKE_CURRENT_SOURCE_DIR}/include/*.h
    )

file( GLOB_RECURSE 
      PRJ_SRC
      ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp
    )


drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
                    ${CMAKE_CURRENT_BINARY_DIR})
# use the following line to create views with namespaces.
# drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
#                     ${CMAKE_CURRENT_BINARY_DIR} TRUE)
# use the following line to create views with namespace CHANGE_ME prefixed
# and path namespaces.
# drogon_create_views(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/views
#                     ${CMAKE_CURRENT_BINARY_DIR} TRUE CHANGE_ME)

target_include_directories(${PROJECT_NAME}
                           PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
                                   ${CMAKE_CURRENT_SOURCE_DIR}/models)
target_sources(${PROJECT_NAME}
               PRIVATE
               ${PRJ_SRC}
               ${CTL_SRC}
               ${FILTER_SRC}
               ${PLUGIN_SRC}
               ${MODEL_SRC})
# ##############################################################################
# uncomment the following line for dynamically loading views 
# set_property(TARGET ${PROJECT_NAME} PROPERTY ENABLE_EXPORTS ON)

# ##############################################################################

add_subdirectory(test)