opencv/modules/objc/generator/CMakeLists.txt
Alexander Alekhin 9e84b860f2 cmake: update objc generator scripts
- allow to run generator without strong requirement of building 'objc' module
2020-11-14 20:59:55 +00:00

126 lines
4.6 KiB
CMake

set(MODULE_NAME "objc_bindings_generator")
set(OPENCV_MODULE_IS_PART_OF_WORLD FALSE)
ocv_add_module(${MODULE_NAME} INTERNAL opencv_core opencv_imgproc)
#set(OPENCV_OBJC_SIGNATURES_FILE "${CMAKE_CURRENT_BINARY_DIR}/opencv_objc_signatures.json" CACHE INTERNAL "")
set(OPENCV_OBJC_BINDINGS_DIR "${CMAKE_CURRENT_BINARY_DIR}" CACHE INTERNAL "")
file(REMOVE_RECURSE "${OPENCV_OBJC_BINDINGS_DIR}/osx")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source_osx") # force re-run after CMake
file(REMOVE_RECURSE "${OPENCV_OBJC_BINDINGS_DIR}/ios")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source_ios") # force re-run after CMake
# This file is included from a subdirectory
set(OBJC_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/..")
include(${OBJC_SOURCE_DIR}/common.cmake) # fill OPENCV_OBJC_MODULES
# common files
file(GLOB_RECURSE deps "${CMAKE_CURRENT_SOURCE_DIR}/templates/*")
set(__modules_config "") # list of OpenCV modules
foreach(m ${OPENCV_OBJC_MODULES})
set(module_objc_dir "${OPENCV_MODULE_${m}_LOCATION}/misc/objc")
list(APPEND deps ${OPENCV_MODULE_${m}_HEADERS})
file(GLOB_RECURSE misc_files "${module_objc_dir}/*")
list(APPEND deps ${misc_files})
string(REGEX REPLACE "^opencv_" "" m_ "${m}")
if(__modules_config)
set(__modules_config "${__modules_config},\n")
endif()
file(RELATIVE_PATH rel_path "${OpenCV_SOURCE_DIR}" "${OPENCV_MODULE_${m}_LOCATION}")
set(__modules_config "${__modules_config} { \"name\": \"${m_}\", \"location\": \"${rel_path}\" }")
endforeach(m)
if(HAVE_opencv_objc)
set(__objc_build_dir "\"objc_build_dir\": \"${CMAKE_CURRENT_BINARY_DIR}/../objc\",")
endif()
set(CONFIG_FILE "${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json")
set(__config_str
"{
\"rootdir\": \"${OpenCV_SOURCE_DIR}\",
${__objc_build_dir}
\"modules\": [
${__modules_config}
]
}
")
#TODO: ocv_update_file("${CONFIG_FILE}" "${__config_str}" ON_CHANGE_REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source")
if(EXISTS "${CONFIG_FILE}")
file(READ "${CONFIG_FILE}" __content)
else()
set(__content "")
endif()
if(NOT "${__content}" STREQUAL "${__config_str}")
file(WRITE "${CONFIG_FILE}" "${__config_str}")
file(REMOVE "${OPENCV_DEPHELPER}/gen_opencv_objc_source")
endif()
unset(__config_str)
set(objc_generated_files
# "${OPENCV_OBJC_SIGNATURES_FILE}"
)
string(REPLACE "opencv_" "" MODULES "${OPENCV_OBJC_MODULES}")
if(NOT DEFINED OPENCV_OBJC_TARGET AND APPLE_FRAMEWORK)
if(IOS)
set(OPENCV_OBJC_TARGET "ios")
else()
set(OPENCV_OBJC_TARGET "osx")
endif()
endif()
if(NOT DEFINED OPENCV_OBJC_FRAMEWORK_NAME)
if(DEFINED FRAMEWORK_NAME)
set(OPENCV_OBJC_FRAMEWORK_NAME "${FRAMEWORK_NAME}")
else()
set(OPENCV_OBJC_FRAMEWORK_NAME "opencv2")
endif()
endif()
set(objc_generated_targets "")
macro(ocv_add_objc_generated_target TARGET)
set(objc_${TARGET}_generated_output_dependecy "${OPENCV_DEPHELPER}/gen_opencv_objc_source_${TARGET}")
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}")
add_custom_command(
OUTPUT ${objc_generated_files} "${objc_${TARGET}_generated_output_dependecy}"
COMMAND ${PYTHON_DEFAULT_EXECUTABLE} "${OBJC_SOURCE_DIR}/generator/gen_objc.py"
-p "${OBJC_SOURCE_DIR}/../python/src2/gen2.py"
-c "${CONFIG_FILE}"
-t "${TARGET}"
-f "${OPENCV_OBJC_FRAMEWORK_NAME}"
COMMAND ${CMAKE_COMMAND} -E touch "${objc_${TARGET}_generated_output_dependecy}"
WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${TARGET}"
DEPENDS "${OpenCV_SOURCE_DIR}/modules/objc/generator/gen_objc.py"
"${OpenCV_SOURCE_DIR}/modules/python/src2/gen2.py"
"${OpenCV_SOURCE_DIR}/modules/python/src2/hdr_parser.py"
# don't, result of file(WRITE): "${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json"
${deps}
# not allowed (file(WRITE) result): "${CONFIG_FILE}"
COMMENT "Generate files for Objective-C bindings (${TARGET})"
)
add_custom_target(gen_opencv_objc_source_${TARGET}
# excluded from all: ALL
DEPENDS ${objc_generated_files} ${objc_${TARGET}_generated_output_dependecy}
SOURCES "${OBJC_SOURCE_DIR}/generator/gen_objc.py"
"${OBJC_SOURCE_DIR}/generator/templates/cmakelists.template"
"${CMAKE_CURRENT_BINARY_DIR}/gen_objc.json"
)
list(APPEND objc_generated_targets gen_opencv_objc_source_${TARGET})
endmacro()
if(OPENCV_OBJC_TARGET)
ocv_add_objc_generated_target(${OPENCV_OBJC_TARGET})
else()
ocv_add_objc_generated_target(osx)
ocv_add_objc_generated_target(ios)
endif()
add_custom_target(gen_opencv_objc_source
# excluded from all: ALL
DEPENDS ${objc_generated_targets}
)