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CMakeLists.txt
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# ____ _ _
# | _ \| |_ _ __ _(_)_ __
# | |_) | | | | |/ _` | | '_ \
# | __/| | |_| | (_| | | | | |
# |_| |_|\__,_|\__, |_|_| |_|
# |___/
cmake_minimum_required(VERSION 3.20)
project(plugin VERSION 0.1.0 LANGUAGES CXX)
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
# PROJECT SETTINGS #############################################################
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(USR_DIR ${CMAKE_CURRENT_LIST_DIR}/usr)
set(SRC_DIR ${CMAKE_CURRENT_LIST_DIR}/src)
set(CMAKE_INSTALL_PREFIX ${USR_DIR})
set(FETCHCONTENT_QUIET OFF)
# DEPENDENCIES #################################################################
include(FetchContent)
# pugg is for the plugin system
FetchContent_Declare(pugg
GIT_REPOSITORY https://github.com/pbosetti/pugg.git
GIT_TAG 1.0.2
GIT_SHALLOW TRUE
)
# plugins deal with I/O as JSON objects
set(BUILD_TESTING OFF CACHE INTERNAL "")
set(JSON_BuildTests OFF CACHE INTERNAL "")
FetchContent_Declare(json
GIT_REPOSITORY https://github.com/nlohmann/json.git
GIT_TAG v3.11.3
GIT_SHALLOW TRUE
)
FetchContent_MakeAvailable(pugg json)
# MACROS #######################################################################
# Call: add_plugin(name [SRCS src1 src2 ...] [LIBS lib1 lib2 ...])
# the source file ${SRC_DIR}/plugin/<name>.cpp is implicitly added
macro(add_plugin name)
# on MacOS only, plugins can be compiled as executables
set(multiValueArgs LIBS SRCS)
cmake_parse_arguments(plugin "" "" "${multiValueArgs}" ${ARGN})
if (APPLE)
add_executable(${name} ${SRC_DIR}/plugin/${name}.cpp ${plugin_SRCS})
set_target_properties(${name} PROPERTIES ENABLE_EXPORTS TRUE)
set(${name}_EXEC ${name}.plugin)
else()
add_library(${name} SHARED ${SRC_DIR}/plugin/${name}.cpp ${plugin_SRCS})
add_executable(${name}_main ${SRC_DIR}/plugin/${name}.cpp ${plugin_SRCS})
target_link_libraries(${name}_main PRIVATE pugg ${plugin_LIBS})
set_target_properties(${name}_main PROPERTIES OUTPUT_NAME ${name})
set(${name}_EXEC ${name})
list(APPEND TARGET_LIST ${name}_main)
endif()
target_link_libraries(${name} PRIVATE pugg ${plugin_LIBS})
set_target_properties(${name} PROPERTIES PREFIX "")
set_target_properties(${name} PROPERTIES SUFFIX ".plugin")
target_compile_definitions(${name} PRIVATE PLUGIN_NAME="${name}")
list(APPEND TARGET_LIST ${name})
endmacro()
macro(add_loader name)
add_executable(${name} ${SRC_DIR}/main/${name}.cpp)
target_link_libraries(${name} PRIVATE pugg)
list(APPEND TARGET_LIST ${name})
endmacro()
# BUILD SETTINGS ###############################################################
if (APPLE)
set(CMAKE_INSTALL_RPATH "@executable_path/../lib")
else()
set(CMAKE_INSTALL_RPATH "\$ORIGIN/../lib;/usr/local/lib")
endif()
include_directories(${json_SOURCE_DIR}/include)
# TARGETS ######################################################################
add_plugin(echoj)
add_plugin(clock)
add_plugin(to_console)
add_loader(load_filter)
add_loader(load_source)
add_loader(load_sink)
find_package(OpenCV)
if(OpenCV_FOUND)
message(STATUS "OpenCV found, webcam.plugin will be built")
add_plugin(webcam LIBS ${OpenCV_LIBS})
endif()
# INSTALL ######################################################################
set(CMAKE_INSTALL_PREFIX ${USR_DIR})
install(TARGETS ${TARGET_LIST}
BUNDLE DESTINATION bin
LIBRARY DESTINATION lib
RUNTIME DESTINATION bin
ARCHIVE DESTINATION lib
)
# TESTING ######################################################################
include(CTest)
add_test(NAME "echoj plugin exec" COMMAND ${echoj_EXEC})
add_test(NAME "clock plugin exec" COMMAND ${clock_EXEC})
if (APPLE)
add_test(NAME "load_filter echoj.plugin" COMMAND load_filter echoj.plugin)
add_test(NAME "load_source clock.plugin" COMMAND load_source clock.plugin)
elseif(WIN32)
add_test(NAME "load_filter echoj.plugin" COMMAND load_filter.exe echoj.plugin)
add_test(NAME "load_source echoj.plugin" COMMAND load_source.exe clock.plugin)
else()
add_test(NAME "load_filter echoj.plugin" COMMAND build/load_filter build/echoj.plugin WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
add_test(NAME "load_source echoj.plugin" COMMAND build/load_source build/clock.plugin WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
endif()
# DOCUMENTATION ################################################################
include(FindDoxygen)
find_package(Doxygen)
if(DOXYGEN_FOUND)
if(NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/doc)
file(MAKE_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/doc)
endif()
message(STATUS "Doxygen found, documentation will be built")
file(GLOB MARKDOWN_FILES "${CMAKE_CURRENT_LIST_DIR}/*.md")
set(DOXYGEN_OUTPUT_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/doc)
set(DOXYGEN_USE_MDFILE_AS_MAINPAGE ${CMAKE_CURRENT_LIST_DIR}/README.md)
set(DOXYGEN_EXCLUDE_PATTERNS clock.cpp echo*.cpp twice.cpp webcam.cpp */main/*)
doxygen_add_docs(Doxygen
${SRC_DIR} ${SRC_DIR}/plugin ${MARKDOWN_FILES}
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/doc
CONFIG_FILE Doxyfile
)
endif()