Fork from inav at github. Modified for some special functions needs.
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set(SETTINGS_GENERATED "settings_generated")
set(SETTINGS_GENERATED_C "${SETTINGS_GENERATED}.c")
set(SETTINGS_GENERATED_H "${SETTINGS_GENERATED}.h")
set(SETTINGS_FILE "${MAIN_SRC_DIR}/fc/settings.yaml")
set(SETTINGS_GENERATOR "${MAIN_UTILS_DIR}/settings.rb")
include(CMakeParseArguments)
function(enable_settings exe name)
get_generated_files_dir(dir ${name})
get_target_property(options ${exe} COMPILE_OPTIONS)
get_target_property(includes ${exe} INCLUDE_DIRECTORIES)
list(TRANSFORM includes PREPEND "-I")
get_target_property(defs ${exe} COMPILE_DEFINITIONS)
list(TRANSFORM defs PREPEND "-D")
list(APPEND cflags ${options})
list(APPEND cflags ${includes})
list(APPEND cflags ${defs})
cmake_parse_arguments(
args
# Boolean arguments
""
# Single value arguments
"OUTPUTS;SETTINGS_CXX"
# Multi-value arguments
""
# Start parsing after the known arguments
${ARGN}
)
set(output ${dir}/${SETTINGS_GENERATED_H} ${dir}/${SETTINGS_GENERATED_C})
add_custom_command(
OUTPUT ${output}
COMMAND
${CMAKE_COMMAND} -E env CFLAGS="${cflags}" TARGET=${name} PATH="$ENV{PATH}" SETTINGS_CXX=${args_SETTINGS_CXX}
${RUBY_EXECUTABLE} ${SETTINGS_GENERATOR} ${MAIN_DIR} ${SETTINGS_FILE} -o "${dir}"
DEPENDS ${SETTINGS_GENERATOR} ${SETTINGS_FILE}
)
set(${args_OUTPUTS} ${output} PARENT_SCOPE)
endfunction()