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feat(cmakev2/compat): add __get_component_sources helper

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This helper function collects component sources within the component's
directory. It will be used by the idf_component_register.

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This commit is contained in:
Frantisek Hrbata
2025-11-04 07:48:13 +01:00
parent ec7a45cc44
commit 48e0fb0511
1 changed files with 73 additions and 0 deletions
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tools/cmakev2/compat.cmake
+73
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@@ -52,3 +52,76 @@ function(check_expected_tool_version tool_name tool_path)
endif()
unset(ENV{IDF_TOOLS_VERSION_HELPER})
endfunction()
#[[
__get_component_sources([SRCS <src>...]
[SRC_DIRS <dir>...]
[EXCLUDE_SRCS <exclude>...]
OUTPUT <var>)
:SRCS[in,opt]: Optional list of sources.
:SRC_DIRS[in,opt]: Option list of source directories.
:EXCLUDE_SRCS[in,opt]: Optional list of sources to exclude.
:OUTPUT[out]: Output variable to store the list of component sources.
This helper function gathers component sources from the arguments specified
in either ``SRCS`` or ``SRC_DIRS``. If both are provided, the ``SRC_DIRS`` option
is disregarded. The sources are collected as absolute paths relative to the
component's directory. If ``EXCLUDE_SRCS`` is specified, the source files
listed in it are excluded. The final list of component sources is returned
in the ``OUTPUT`` variable.
The ``COMPONENT_NAME`` and ``COMPONENT_DIR`` variables are provided by the
build system when ``idf_component_register`` is called.
#]]
function(__get_component_sources)
set(options)
set(one_value OUTPUT)
set(multi_value SRCS SRC_DIRS EXCLUDE_SRCS)
cmake_parse_arguments(ARG "${options}" "${one_value}" "${multi_value}" ${ARGN})
if(NOT DEFINED ARG_OUTPUT)
idf_die("OUTPUT option is required")
endif()
if(DEFINED ARG_SRCS AND DEFINED ARG_SRC_DIRS)
idf_warn("SRCS and SRC_DIRS are both specified for '${COMPONENT_NAME}' "
"in '${COMPONENT_DIR}'. Ignoring SRC_DIRS.")
unset(ARG_SRC_DIRS)
endif()
set(sources)
if(ARG_SRCS)
__get_absolute_paths(PATHS "${ARG_SRCS}" BASE_DIR "${COMPONENT_DIR}" OUTPUT sources)
elseif(ARG_SRC_DIRS)
__get_absolute_paths(PATHS "${ARG_SRC_DIRS}" BASE_DIR "${COMPONENT_DIR}" OUTPUT dirs)
foreach(dir IN LISTS dirs)
if(NOT IS_DIRECTORY "${dir}")
idf_die("SRC_DIRS entry '${dir}' does not exist for component "
"'${COMPONENT_NAME}' in '${COMPONENT_DIR}'.")
endif()
file(GLOB dir_sources "${dir}/*.c" "${dir}/*.cpp" "${dir}/*.S")
list(SORT dir_sources)
if(NOT dir_sources)
idf_warn("No source files found for SRC_DIRS entry '${dir}' for "
"'${COMPONENT_NAME}' in '${COMPONENT_DIR}'.")
continue()
endif()
list(APPEND sources "${dir_sources}")
endforeach()
endif()
if(ARG_EXCLUDE_SRCS)
__get_absolute_paths(PATHS "${ARG_EXCLUDE_SRCS}" BASE_DIR "${COMPONENT_DIR}" OUTPUT exclude_srcs)
foreach(src IN LISTS exclude_srcs)
list(REMOVE_ITEM sources "${src}")
endforeach()
endif()
list(REMOVE_DUPLICATES sources)
set(${ARG_OUTPUT} "${sources}" PARENT_SCOPE)
endfunction()