circuitpython/py/usermod.cmake

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CMake
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# Create a target for all user modules to link against.
add_library(usermod INTERFACE)
function(usermod_gather_sources SOURCES_VARNAME INCLUDE_DIRECTORIES_VARNAME INCLUDED_VARNAME LIB)
if (NOT ${LIB} IN_LIST ${INCLUDED_VARNAME})
list(APPEND ${INCLUDED_VARNAME} ${LIB})
# Gather library sources
get_target_property(lib_sources ${LIB} INTERFACE_SOURCES)
if (lib_sources)
list(APPEND ${SOURCES_VARNAME} ${lib_sources})
endif()
# Gather library includes
get_target_property(lib_include_directories ${LIB} INTERFACE_INCLUDE_DIRECTORIES)
if (lib_include_directories)
list(APPEND ${INCLUDE_DIRECTORIES_VARNAME} ${lib_include_directories})
endif()
# Recurse linked libraries
get_target_property(trans_depend ${LIB} INTERFACE_LINK_LIBRARIES)
if (trans_depend)
foreach(SUB_LIB ${trans_depend})
usermod_gather_sources(
${SOURCES_VARNAME}
${INCLUDE_DIRECTORIES_VARNAME}
${INCLUDED_VARNAME}
${SUB_LIB})
endforeach()
endif()
set(${SOURCES_VARNAME} ${${SOURCES_VARNAME}} PARENT_SCOPE)
set(${INCLUDE_DIRECTORIES_VARNAME} ${${INCLUDE_DIRECTORIES_VARNAME}} PARENT_SCOPE)
set(${INCLUDED_VARNAME} ${${INCLUDED_VARNAME}} PARENT_SCOPE)
endif()
endfunction()
# Include CMake files for user modules.
if (USER_C_MODULES)
foreach(USER_C_MODULE_PATH ${USER_C_MODULES})
message("Including User C Module(s) from ${USER_C_MODULE_PATH}")
include(${USER_C_MODULE_PATH})
endforeach()
endif()
# Recursively gather sources for QSTR scanning - doesn't support generator expressions.
usermod_gather_sources(MICROPY_SOURCE_USERMOD MICROPY_INC_USERMOD found_modules usermod)
# Report found modules.
list(REMOVE_ITEM found_modules "usermod")
list(JOIN found_modules ", " found_modules)
message("Found User C Module(s): ${found_modules}")