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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
# These are helper functions aim to create BUILD.gn
function(init_gn_config file_path)
include(${file_path})
set_directory_properties(PROPERTIES
ELEMENTS "${ELEMENTS}"
PREFIX "${PREFIX}"
)
set_properties_on_directory_scope()
endfunction()
function(read_gn_config file_path)
include(${file_path})
set_properties_on_directory_scope()
endfunction()
macro(set_properties_on_directory_scope)
get_directory_property(element_list ELEMENTS)
get_directory_property(prefix PREFIX)
foreach(element IN LISTS element_list)
if(${prefix}_${element})
set_property(DIRECTORY APPEND PROPERTY ${prefix}_${element} ${${prefix}_${element}})
endif()
endforeach()
endmacro()
# we need to pass -F or -iframework in case of frameworks builds, which gn treats as
# compiler flag and cmake as include dir, so swap it.
function(recover_framework_build includeDirs compilerFlags)
foreach(includeDir ${${includeDirs}})
if(includeDir MATCHES "^\"(.*/([^/]+)\\.framework)\"$")
list(APPEND frameworkDirs \"-iframework${CMAKE_MATCH_1}/..\")
else()
list(APPEND newIncludeDirs ${includeDir})
endif()
endforeach()
set(${includeDirs} ${newIncludeDirs} PARENT_SCOPE)
set(${compilerFlags} ${${compilerFlags}} ${frameworkDirs} PARENT_SCOPE)
endfunction()
function(configure_gn_target source_dir in_file_path out_file_path path_mode)
# GN_SOURCES GN_HEADERS
get_property(gn_sources DIRECTORY PROPERTY GN_SOURCES)
foreach(gn_source_file ${gn_sources})
get_filename_component(gn_source_path ${source_dir}/${gn_source_file} ${path_mode})
list(APPEND source_list \"${gn_source_path}\")
endforeach()
set(GN_HEADERS ${source_list})
set(GN_SOURCES ${source_list})
list(FILTER GN_HEADERS INCLUDE REGEX "^.+\\.h\"$")
list(FILTER GN_SOURCES EXCLUDE REGEX "^.+\\.h\"$")
# GN_DEFINES
get_property(gn_defines DIRECTORY PROPERTY GN_DEFINES)
list(REMOVE_DUPLICATES gn_defines)
foreach(gn_define ${gn_defines})
list(APPEND GN_ARGS_DEFINES \"-D${gn_define}\")
list(APPEND GN_DEFINES \"${gn_define}\")
endforeach()
# GN_INCLUDES
get_property(gn_includes DIRECTORY PROPERTY GN_INCLUDES)
list(REMOVE_DUPLICATES gn_includes)
foreach(gn_include ${gn_includes})
get_filename_component(gn_include ${gn_include} ${path_mode})
list(APPEND GN_ARGS_INCLUDES \"-I${gn_include}\")
list(APPEND GN_INCLUDE_DIRS \"${gn_include}\")
endforeach()
# MOC
get_property(moc_file_path DIRECTORY PROPERTY GN_MOC_PATH)
set(GN_ARGS_MOC_BIN \"${moc_file_path}\")
# GN_CFLAGS_CC
get_property(gn_cxx_compile_options DIRECTORY PROPERTY GN_CXX_COMPILE_OPTIONS)
foreach(gn_cxx_compile_option ${gn_cxx_compile_options})
list(APPEND GN_CFLAGS_CC \"${gn_cxx_compile_option}\")
endforeach()
list(REMOVE_DUPLICATES GN_CFLAGS_CC)
# GN_CFLAGS_C
get_property(gn_c_compile_options DIRECTORY PROPERTY GN_C_COMPILE_OPTIONS)
foreach(gn_c_compile_option ${gn_c_compile_options})
list(APPEND GN_CFLAGS_C \"${gn_c_compile_option}\")
endforeach()
list(REMOVE_DUPLICATES GN_CFLAGS_C)
# GN_SOURCE_ROOT
get_filename_component(GN_SOURCE_ROOT "${source_dir}" ${path_mode})
if(APPLE) # this runs in scrpit mode without qt-cmake so no MACOS here
recover_framework_build(GN_INCLUDE_DIRS GN_CFLAGS_C)
endif()
# Static setup
set(libs PNG JPEG FREETYPE HARFBUZZ ZLIB)
foreach(lib ${libs})
get_property(static_includes DIRECTORY PROPERTY GN_${lib}_INCLUDES)
foreach(is ${static_includes})
list(APPEND GN_${lib}_INCLUDES \"${is}\")
endforeach()
endforeach()
foreach(item GN_HEADERS GN_SOURCES GN_ARGS_DEFINES GN_DEFINES GN_ARGS_INCLUDES
GN_INCLUDE_DIRS GN_CFLAGS_CC GN_CFLAGS_C GN_PNG_INCLUDES GN_JPEG_INCLUDES
GN_FREETYPE_INCLUDES GN_HARFBUZZ_INCLUDES GN_ZLIB_INCLUDES)
string(REPLACE ";" ",\n " ${item} "${${item}}")
endforeach()
configure_file(${in_file_path} ${out_file_path} @ONLY)
endfunction()
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