kopia lustrzana https://github.com/espressif/esp-idf
270 wiersze
11 KiB
CMake
270 wiersze
11 KiB
CMake
# expand_requirements.cmake is a utility cmake script to expand component requirements early in the build,
|
|
# before the components are ready to be included.
|
|
#
|
|
# Parameters:
|
|
# - COMPONENTS = Space-separated list of initial components to include in the build.
|
|
# Can be empty, in which case all components are in the build.
|
|
# - COMPONENT_REQUIRES_COMMON = Components to always include in the build, and treated as dependencies
|
|
# of all other components.
|
|
# - DEPENDENCIES_FILE = Path of generated cmake file which will contain the expanded dependencies for these
|
|
# components.
|
|
# - COMPONENT_DIRS = List of paths to search for all components.
|
|
# - DEBUG = Set -DDEBUG=1 to debug component lists in the build.
|
|
#
|
|
# If successful, DEPENDENCIES_FILE can be expanded to set BUILD_COMPONENTS & BUILD_COMPONENT_PATHS with all
|
|
# components required for the build, and the get_component_requirements() function to return each component's
|
|
# recursively expanded requirements.
|
|
#
|
|
# BUILD_COMPONENTS & BUILD_COMPONENT_PATHS will be ordered in a best-effort way so that dependencies are listed first.
|
|
# (Note that IDF supports cyclic dependencies, and dependencies in a cycle have ordering guarantees.)
|
|
#
|
|
# Determinism:
|
|
#
|
|
# Given the the same list of names in COMPONENTS (regardless of order), and an identical value of
|
|
# COMPONENT_REQUIRES_COMMON, and all the same COMPONENT_REQUIRES & COMPONENT_PRIV_REQUIRES values in
|
|
# each component, then the output of BUILD_COMPONENTS should always be in the same
|
|
# order.
|
|
#
|
|
# BUILD_COMPONENT_PATHS will be in the same component order as BUILD_COMPONENTS, even if the
|
|
# actual component paths are different due to different paths.
|
|
#
|
|
# TODO: Error out if a component requirement is missing
|
|
cmake_minimum_required(VERSION 3.5)
|
|
include("${IDF_PATH}/tools/cmake/utilities.cmake")
|
|
include("${IDF_PATH}/tools/cmake/component_utils.cmake")
|
|
|
|
set(ESP_PLATFORM 1)
|
|
|
|
if(NOT DEPENDENCIES_FILE)
|
|
message(FATAL_ERROR "DEPENDENCIES_FILE must be set.")
|
|
endif()
|
|
|
|
if(NOT COMPONENT_DIRS)
|
|
message(FATAL_ERROR "COMPONENT_DIRS variable must be set")
|
|
endif()
|
|
spaces2list(COMPONENT_DIRS)
|
|
|
|
spaces2list(COMPONENT_REQUIRES_COMMON)
|
|
|
|
# Dummy register_component used to save requirements variables as global properties, for later expansion
|
|
#
|
|
# (expand_component_requirements() includes the component CMakeLists.txt, which then sets its component variables,
|
|
# calls this dummy macro, and immediately exits again.)
|
|
macro(register_component)
|
|
if(COMPONENT STREQUAL main AND NOT COMPONENT_REQUIRES)
|
|
set(main_component_requires ${COMPONENTS})
|
|
list(REMOVE_ITEM main_component_requires "main")
|
|
|
|
set_property(GLOBAL PROPERTY "${COMPONENT}_REQUIRES" "${main_component_requires}")
|
|
else()
|
|
spaces2list(COMPONENT_REQUIRES)
|
|
set_property(GLOBAL PROPERTY "${COMPONENT}_REQUIRES" "${COMPONENT_REQUIRES}")
|
|
endif()
|
|
|
|
spaces2list(COMPONENT_PRIV_REQUIRES)
|
|
set_property(GLOBAL PROPERTY "${COMPONENT}_PRIV_REQUIRES" "${COMPONENT_PRIV_REQUIRES}")
|
|
|
|
# This is tricky: we override register_component() so it returns out of the component CMakeLists.txt
|
|
# (as we're declaring it as a macro not a function, so it doesn't have its own scope.)
|
|
#
|
|
# This means no targets are defined, and the component expansion ends early.
|
|
return()
|
|
endmacro()
|
|
|
|
macro(register_config_only_component)
|
|
register_component()
|
|
endmacro()
|
|
|
|
function(require_idf_targets)
|
|
if(NOT ${IDF_TARGET} IN_LIST ARGN)
|
|
message(FATAL_ERROR "Component ${COMPONENT_NAME} only supports targets: ${ARGN}")
|
|
endif()
|
|
endfunction()
|
|
|
|
# expand_component_requirements: Recursively expand a component's requirements,
|
|
# setting global properties BUILD_COMPONENTS & BUILD_COMPONENT_PATHS and
|
|
# also invoking the components to call register_component() above,
|
|
# which will add per-component global properties with dependencies, etc.
|
|
function(expand_component_requirements component)
|
|
get_property(seen_components GLOBAL PROPERTY SEEN_COMPONENTS)
|
|
if(component IN_LIST seen_components)
|
|
return() # already added, or in process of adding, this component
|
|
endif()
|
|
set_property(GLOBAL APPEND PROPERTY SEEN_COMPONENTS ${component})
|
|
|
|
find_component_path("${component}" "${ALL_COMPONENTS}" "${ALL_COMPONENT_PATHS}" COMPONENT_PATH)
|
|
debug("Expanding dependencies of ${component} @ ${COMPONENT_PATH}")
|
|
if(NOT COMPONENT_PATH)
|
|
set_property(GLOBAL APPEND PROPERTY COMPONENTS_NOT_FOUND ${component})
|
|
return()
|
|
endif()
|
|
|
|
# include the component CMakeLists.txt to expand its properties
|
|
# into the global cache (via register_component(), above)
|
|
unset(COMPONENT_REQUIRES)
|
|
unset(COMPONENT_PRIV_REQUIRES)
|
|
set(COMPONENT ${component})
|
|
include(${COMPONENT_PATH}/CMakeLists.txt)
|
|
|
|
get_property(requires GLOBAL PROPERTY "${component}_REQUIRES")
|
|
get_property(requires_priv GLOBAL PROPERTY "${component}_PRIV_REQUIRES")
|
|
|
|
# Recurse dependencies first, so that they appear first in the list (when possible)
|
|
foreach(req ${COMPONENT_REQUIRES_COMMON} ${requires} ${requires_priv})
|
|
expand_component_requirements(${req})
|
|
endforeach()
|
|
|
|
list(FIND TEST_COMPONENTS ${component} idx)
|
|
|
|
if(NOT idx EQUAL -1)
|
|
list(GET TEST_COMPONENTS ${idx} test_component)
|
|
list(GET TEST_COMPONENT_PATHS ${idx} test_component_path)
|
|
set_property(GLOBAL APPEND PROPERTY BUILD_TEST_COMPONENTS ${test_component})
|
|
set_property(GLOBAL APPEND PROPERTY BUILD_TEST_COMPONENT_PATHS ${test_component_path})
|
|
endif()
|
|
|
|
# Now append this component to the full list (after its dependencies)
|
|
set_property(GLOBAL APPEND PROPERTY BUILD_COMPONENT_PATHS ${COMPONENT_PATH})
|
|
set_property(GLOBAL APPEND PROPERTY BUILD_COMPONENTS ${component})
|
|
endfunction()
|
|
|
|
# filter_components_list: Filter the components included in the build
|
|
# as specified by the user. Or, in the case of unit testing, filter out
|
|
# the test components to be built.
|
|
macro(filter_components_list)
|
|
spaces2list(COMPONENTS)
|
|
spaces2list(EXCLUDE_COMPONENTS)
|
|
spaces2list(TEST_COMPONENTS)
|
|
spaces2list(TEST_EXCLUDE_COMPONENTS)
|
|
|
|
list(LENGTH ALL_COMPONENTS all_components_length)
|
|
math(EXPR all_components_length "${all_components_length} - 1")
|
|
|
|
foreach(component_idx RANGE 0 ${all_components_length})
|
|
list(GET ALL_COMPONENTS ${component_idx} component)
|
|
list(GET ALL_COMPONENT_PATHS ${component_idx} component_path)
|
|
|
|
if(COMPONENTS)
|
|
if(${component} IN_LIST COMPONENTS)
|
|
set(add_component 1)
|
|
else()
|
|
set(add_component 0)
|
|
endif()
|
|
else()
|
|
set(add_component 1)
|
|
endif()
|
|
|
|
if(NOT ${component} IN_LIST EXCLUDE_COMPONENTS AND add_component EQUAL 1)
|
|
list(APPEND components ${component})
|
|
list(APPEND component_paths ${component_path})
|
|
|
|
if(BUILD_TESTS EQUAL 1)
|
|
|
|
if(TEST_COMPONENTS)
|
|
if(${component} IN_LIST TEST_COMPONENTS)
|
|
set(add_test_component 1)
|
|
else()
|
|
set(add_test_component 0)
|
|
endif()
|
|
else()
|
|
set(add_test_component 1)
|
|
endif()
|
|
|
|
if(${component} IN_LIST ALL_TEST_COMPONENTS)
|
|
if(NOT ${component} IN_LIST TEST_EXCLUDE_COMPONENTS AND add_test_component EQUAL 1)
|
|
list(APPEND test_components ${component}_test)
|
|
list(APPEND test_component_paths ${component_path}/test)
|
|
|
|
list(APPEND components ${component}_test)
|
|
list(APPEND component_paths ${component_path}/test)
|
|
endif()
|
|
endif()
|
|
endif()
|
|
endif()
|
|
endforeach()
|
|
|
|
set(COMPONENTS ${components})
|
|
|
|
set(TEST_COMPONENTS ${test_components})
|
|
set(TEST_COMPONENT_PATHS ${test_component_paths})
|
|
|
|
list(APPEND ALL_COMPONENTS "${TEST_COMPONENTS}")
|
|
list(APPEND ALL_COMPONENT_PATHS "${TEST_COMPONENT_PATHS}")
|
|
endmacro()
|
|
|
|
# Main functionality goes here
|
|
# Find every available component in COMPONENT_DIRS, save as ALL_COMPONENT_PATHS and ALL_COMPONENTS
|
|
components_find_all("${COMPONENT_DIRS}" ALL_COMPONENT_PATHS ALL_COMPONENTS ALL_TEST_COMPONENTS)
|
|
|
|
filter_components_list()
|
|
|
|
debug("ALL_COMPONENT_PATHS ${ALL_COMPONENT_PATHS}")
|
|
debug("ALL_COMPONENTS ${ALL_COMPONENTS}")
|
|
debug("ALL_TEST_COMPONENTS ${ALL_TEST_COMPONENTS}")
|
|
|
|
set_property(GLOBAL PROPERTY SEEN_COMPONENTS "") # anti-infinite-recursion
|
|
set_property(GLOBAL PROPERTY BUILD_COMPONENTS "")
|
|
set_property(GLOBAL PROPERTY BUILD_COMPONENT_PATHS "")
|
|
set_property(GLOBAL PROPERTY BUILD_TEST_COMPONENTS "")
|
|
set_property(GLOBAL PROPERTY BUILD_TEST_COMPONENT_PATHS "")
|
|
set_property(GLOBAL PROPERTY COMPONENTS_NOT_FOUND "")
|
|
|
|
# Indicate that the component CMakeLists.txt is being included in the early expansion phase of the build,
|
|
# and might not want to execute particular operations.
|
|
set(CMAKE_BUILD_EARLY_EXPANSION 1)
|
|
foreach(component ${COMPONENTS})
|
|
debug("Expanding initial component ${component}")
|
|
expand_component_requirements(${component})
|
|
endforeach()
|
|
unset(CMAKE_BUILD_EARLY_EXPANSION)
|
|
|
|
get_property(build_components GLOBAL PROPERTY BUILD_COMPONENTS)
|
|
get_property(build_component_paths GLOBAL PROPERTY BUILD_COMPONENT_PATHS)
|
|
get_property(build_test_components GLOBAL PROPERTY BUILD_TEST_COMPONENTS)
|
|
get_property(build_test_component_paths GLOBAL PROPERTY BUILD_TEST_COMPONENT_PATHS)
|
|
get_property(not_found GLOBAL PROPERTY COMPONENTS_NOT_FOUND)
|
|
|
|
debug("components in build: ${build_components}")
|
|
debug("components in build: ${build_component_paths}")
|
|
debug("components not found: ${not_found}")
|
|
|
|
function(line contents)
|
|
file(APPEND "${DEPENDENCIES_FILE}.tmp" "${contents}\n")
|
|
endfunction()
|
|
|
|
file(WRITE "${DEPENDENCIES_FILE}.tmp" "# Component requirements generated by expand_requirements.cmake\n\n")
|
|
line("set(BUILD_COMPONENTS ${build_components})")
|
|
line("set(BUILD_COMPONENT_PATHS ${build_component_paths})")
|
|
line("set(BUILD_TEST_COMPONENTS ${build_test_components})")
|
|
line("set(BUILD_TEST_COMPONENT_PATHS ${build_test_component_paths})")
|
|
line("")
|
|
|
|
line("# get_component_requirements: Generated function to read the dependencies of a given component.")
|
|
line("#")
|
|
line("# Parameters:")
|
|
line("# - component: Name of component")
|
|
line("# - var_requires: output variable name. Set to recursively expanded COMPONENT_REQUIRES ")
|
|
line("# for this component.")
|
|
line("# - var_private_requires: output variable name. Set to recursively expanded COMPONENT_PRIV_REQUIRES ")
|
|
line("# for this component.")
|
|
line("#")
|
|
line("# Throws a fatal error if 'componeont' is not found (indicates a build system problem).")
|
|
line("#")
|
|
line("function(get_component_requirements component var_requires var_private_requires)")
|
|
foreach(build_component ${build_components})
|
|
get_property(reqs GLOBAL PROPERTY "${build_component}_REQUIRES")
|
|
get_property(private_reqs GLOBAL PROPERTY "${build_component}_PRIV_REQUIRES")
|
|
line(" if(\"\$\{component}\" STREQUAL \"${build_component}\")")
|
|
line(" set(\${var_requires} \"${reqs}\" PARENT_SCOPE)")
|
|
line(" set(\${var_private_requires} \"${private_reqs}\" PARENT_SCOPE)")
|
|
line(" return()")
|
|
line(" endif()")
|
|
endforeach()
|
|
|
|
line(" message(FATAL_ERROR \"Component not found: \${component}\")")
|
|
line("endfunction()")
|
|
|
|
# only replace DEPENDENCIES_FILE if it has changed (prevents ninja/make build loops.)
|
|
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "${DEPENDENCIES_FILE}.tmp" "${DEPENDENCIES_FILE}")
|
|
execute_process(COMMAND ${CMAKE_COMMAND} -E remove "${DEPENDENCIES_FILE}.tmp")
|