esp-idf/tools/cmake/scripts/component_get_requirements.cmake
2020-04-08 05:42:15 +00:00

103 lines
4.0 KiB
CMake

include("${BUILD_PROPERTIES_FILE}")
include("${COMPONENT_PROPERTIES_FILE}")
function(idf_build_get_property var property)
cmake_parse_arguments(_ "GENERATOR_EXPRESSION" "" "" ${ARGN})
if(__GENERATOR_EXPRESSION)
message(FATAL_ERROR "Getting build property generator expression not
supported before idf_component_register().")
endif()
set(${var} ${${property}} PARENT_SCOPE)
endfunction()
idf_build_get_property(idf_path IDF_PATH)
include(${idf_path}/tools/cmake/utilities.cmake)
function(__component_get_property var component_target property)
set(_property __component_${component_target}_${property})
set(${var} ${${_property}} PARENT_SCOPE)
endfunction()
macro(require_idf_targets)
endmacro()
macro(idf_component_register)
set(options)
set(single_value)
set(multi_value SRCS SRC_DIRS EXCLUDE_SRCS
INCLUDE_DIRS PRIV_INCLUDE_DIRS LDFRAGMENTS REQUIRES
PRIV_REQUIRES REQUIRED_IDF_TARGETS EMBED_FILES EMBED_TXTFILES)
cmake_parse_arguments(_ "${options}" "${single_value}" "${multi_value}" "${ARGN}")
set(__component_requires "${__REQUIRES}")
set(__component_priv_requires "${__PRIV_REQUIRES}")
set(__component_registered 1)
return()
endmacro()
macro(register_component)
set(__component_requires "${COMPONENT_REQUIRES}")
set(__component_priv_requires "${COMPONENT_PRIV_REQUIRES}")
set(__component_registered 1)
return()
endmacro()
macro(register_config_only_component)
register_component()
endmacro()
idf_build_get_property(__common_reqs __COMPONENT_REQUIRES_COMMON)
idf_build_get_property(__component_targets __COMPONENT_TARGETS)
function(__component_get_requirements)
# This is in a function (separate variable context) so that variables declared
# and set by the included CMakeLists.txt does not bleed into the next inclusion.
# We are only interested in the public and private requirements of components
__component_get_property(__component_dir ${__component_target} COMPONENT_DIR)
__component_get_property(__component_name ${__component_target} COMPONENT_NAME)
set(COMPONENT_NAME ${__component_name})
set(COMPONENT_DIR ${__component_dir})
set(COMPONENT_PATH ${__component_dir}) # for backward compatibility only, COMPONENT_DIR is preferred
include(${__component_dir}/CMakeLists.txt OPTIONAL)
spaces2list(__component_requires)
spaces2list(__component_priv_requires)
set(__component_requires "${__component_requires}" PARENT_SCOPE)
set(__component_priv_requires "${__component_priv_requires}" PARENT_SCOPE)
set(__component_registered ${__component_registered} PARENT_SCOPE)
endfunction()
set(CMAKE_BUILD_EARLY_EXPANSION 1)
foreach(__component_target ${__component_targets})
set(__component_requires "")
set(__component_priv_requires "")
set(__component_registered 0)
__component_get_requirements()
list(APPEND __component_requires "${__common_reqs}")
# Remove duplicates and the component itself from its requirements
__component_get_property(__component_alias ${__component_target} COMPONENT_ALIAS)
__component_get_property(__component_name ${__component_target} COMPONENT_NAME)
# Prevent component from linking to itself.
if(__component_requires)
list(REMOVE_DUPLICATES __component_requires)
list(REMOVE_ITEM __component_requires ${__component_alias} ${__component_name})
endif()
if(__component_priv_requires)
list(REMOVE_DUPLICATES __component_priv_requires)
list(REMOVE_ITEM __component_priv_requires ${__component_alias} ${__component_name})
endif()
set(__contents
"__component_set_property(${__component_target} REQUIRES \"${__component_requires}\")
__component_set_property(${__component_target} PRIV_REQUIRES \"${__component_priv_requires}\")
__component_set_property(${__component_target} __COMPONENT_REGISTERED ${__component_registered})"
)
set(__component_requires_contents "${__component_requires_contents}\n${__contents}")
endforeach()
file(WRITE ${COMPONENT_REQUIRES_FILE} "${__component_requires_contents}")