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Scan preprocessed code for implicit dependencies
Fixes: #5
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| include(Arduino/ScriptMode NO_POLICY_SCOPE) | ||
| include("${ARGUMENTS}" OPTIONAL) | ||
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| arduino_script_require( | ||
| COLLECT_LIBRARIES_CACHE | ||
| COLLECT_LIBRARIES_TARGET | ||
| COLLECT_LIBRARIES_OUTPUT | ||
| COLLECT_LIBRARIES_SOURCES) | ||
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| # ---------------------------------------------------------------------------------------------------------------------- | ||
| # Extracts include directives from the files in `SOURCES_LIST` and stores the filename list in `OUTPUT_VARIABLE`. | ||
| # ---------------------------------------------------------------------------------------------------------------------- | ||
| function(__arduino_collect_required_libraries SOURCES_LIST OUTPUT_VARIABLE) | ||
| unset(_required_includes) | ||
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| foreach(_filepath IN LISTS SOURCES_LIST) | ||
| message(STATUS " Scanning ${_filepath} for include directives") | ||
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| # FIXME actually run preprocessor on the file to handle conditional includes (#ifdef/#else) | ||
| file(STRINGS "${_filepath}" _include_directives REGEX "^${_hash}[ /t]*include") | ||
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| foreach(_line IN LISTS _include_directives) | ||
| if (_line MATCHES "${_hash}[ /t]*include[ /t]*<([^>]+\\.[Hh])>") | ||
| list(APPEND _required_includes "${CMAKE_MATCH_1}") | ||
| endif() | ||
| endforeach() | ||
| endforeach() | ||
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| list(REMOVE_DUPLICATES _required_includes) | ||
| list(REMOVE_ITEM _required_includes "Arduino.h") | ||
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| set("${OUTPUT_VARIABLE}" ${_required_includes} PARENT_SCOPE) | ||
| endfunction() | ||
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| # ---------------------------------------------------------------------------------------------------------------------- | ||
| # Filters the known installed libraries by `LOCATION` and reports the result in `OUTPUT_VARIABLE`. | ||
| # The result is a list of `(type, name, dirpath)` tuples separated by '|'. | ||
| # ---------------------------------------------------------------------------------------------------------------------- | ||
| function(__arduino_find_installed_libraries LOCATION OUTPUT_VARIABLE) | ||
| message(STATUS "Reading installed libraries from ${COLLECT_LIBRARIES_CACHE}") | ||
| file(READ "${COLLECT_LIBRARIES_CACHE}" _installed_libraries) | ||
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| string(JSON _installed_libraries GET "${_installed_libraries}" "installed_libraries") | ||
| string(JSON _count LENGTH "${_installed_libraries}") | ||
| math(EXPR _last "${_count} - 1") | ||
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| unset(_library_list) | ||
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| foreach(_library_index RANGE ${_last}) | ||
| string(JSON _dirpath GET "${_installed_libraries}" ${_library_index} "library" "source_dir") | ||
| string(JSON _type GET "${_installed_libraries}" ${_library_index} "library" "location") | ||
| string(JSON _name GET "${_installed_libraries}" ${_library_index} "library" "name") | ||
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| cmake_path(NORMAL_PATH _dirpath) | ||
| list(APPEND _library_list "${_type}|${_name}|${_dirpath}") | ||
| endforeach() | ||
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| set("${OUTPUT_VARIABLE}" ${_library_list} PARENT_SCOPE) | ||
| endfunction() | ||
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| # ---------------------------------------------------------------------------------------------------------------------- | ||
| # Splits a `LIBRARY` tuple into its components `(type, name, dirpath)`. | ||
| # ---------------------------------------------------------------------------------------------------------------------- | ||
| function(__arduino_split_library_tuple LIBRARY TYPE_VARIABLE NAME_VARIABLE DIRPATH_VARIABLE) | ||
| string(REGEX MATCH "^([^|]+)\\|([^|]+)\\|([^|]+)" _ "${_library}") | ||
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| set("${TYPE_VARIABLE}" "${CMAKE_MATCH_1}" PARENT_SCOPE) | ||
| set("${NAME_VARIABLE}" "${CMAKE_MATCH_2}" PARENT_SCOPE) | ||
| set("${DIRPATH_VARIABLE}" "${CMAKE_MATCH_3}" PARENT_SCOPE) | ||
| endfunction() | ||
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| # ---------------------------------------------------------------------------------------------------------------------- | ||
| # Tries to find the libraries that provide `REQUIRED_INCLUDES` | ||
| # and stores the identified library tuples in `OUTPUT_VARIABLE`. | ||
| # ---------------------------------------------------------------------------------------------------------------------- | ||
| function(__arduino_resolve_libraries REQUIRED_INCLUDES OUTPUT_VARIABLE) | ||
| # FIXME Read LINK_LIBRARIES of COLLECT_LIBRARIES_TARGET | ||
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| # Cluster the libraries reported by arduino-cli by location to implement the location priority | ||
| # described by https://arduino.github.io/arduino-cli/1.0/sketch-build-process/#location-priority | ||
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| __arduino_find_installed_libraries("user" _user_librarys) | ||
| __arduino_find_installed_libraries("platform" _platform_librarys) | ||
| __arduino_find_installed_libraries("ref-platform" _board_librarys) | ||
| __arduino_find_installed_libraries("ide" _ide_libraries) | ||
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| unset(_resolved_includes) | ||
| unset(_required_libraries) | ||
| unset(_unresolved_includes) | ||
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| while (REQUIRED_INCLUDES) | ||
| list(POP_FRONT REQUIRED_INCLUDES _next_include) | ||
| message(STATUS " Searching library that provides <${_next_include}>") | ||
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| unset(_matching_library) | ||
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| foreach(_library IN LISTS _user_librarys _platform_librarys _board_librarys _ide_libraries) | ||
| __arduino_split_library_tuple("${_library}" _type _name _dirpath) | ||
| message(STATUS "Checking ${_type} library ${_name} at ${_dirpath}") | ||
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| if (EXISTS "${_dirpath}/${_next_include}" | ||
| AND NOT IS_DIRECTORY "${_dirpath}/${_next_include}") | ||
| set(_matching_library "${_library}") | ||
| break() | ||
| endif() | ||
| endforeach() | ||
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| if (_matching_library) | ||
| list(APPEND _resolved_includes "${_next_include}") | ||
| list(APPEND _required_libraries "${_matching_library}") | ||
| else() | ||
| list(APPEND _unresolved_includes "${_next_include}") | ||
| endif() | ||
| endwhile() | ||
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| if (_unresolved_includes) | ||
| list(JOIN _unresolved_includes ">, <" _unresolved_includes) | ||
| message(WARNING "Could not resolve all required libraries. Unresolved includes: <${_unresolved_includes}>") | ||
| endif() | ||
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| list(REMOVE_DUPLICATES _required_libraries) | ||
| set("${OUTPUT_VARIABLE}" "${_required_libraries}" PARENT_SCOPE) | ||
| endfunction() | ||
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| # ---------------------------------------------------------------------------------------------------------------------- | ||
| # Generates a CMake file that defines import libraries from `REQUIRED_LIBRARIES` and links `TARGET` with them. | ||
| # ---------------------------------------------------------------------------------------------------------------------- | ||
| function(__arduino_generate_library_definitions TARGET REQUIRED_LIBRARIES OUTPUT_FILEPATH) | ||
| set(_library_definitions "# Generated by ${CMAKE_SCRIPT_MODE_FILE}") | ||
| unset(_link_libraries) | ||
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| foreach(_library IN LISTS REQUIRED_LIBRARIES) # <--------------------- generate __arduino_add_import_library() calls | ||
| __arduino_split_library_tuple("${_library}" _ _name _dirpath) | ||
| string(REPLACE " " "_" _target_name "${_name}") | ||
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| if (_target_name MATCHES "[^A-Za-z0-9]_") | ||
| message(FATAL_ERROR "Unexpected character '${CMAKE_MATCH_0}' in library name '${_name}'") | ||
| return() | ||
| endif() | ||
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| list( | ||
| APPEND _library_definitions | ||
| "" | ||
| "if (NOT TARGET Arduino::${_target_name})" | ||
| " __arduino_add_import_library(${_target_name} \"${_dirpath}\")" | ||
| "endif()") | ||
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| list(APPEND _link_libraries "Arduino::${_target_name}") | ||
| endforeach() | ||
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| if (_link_libraries) # <-------------------------------------------- link `TARGET` with the defined import libraries | ||
| list(APPEND _library_definitions | ||
| "" | ||
| "target_link_libraries(\"${TARGET}\" PUBLIC ${_link_libraries})") | ||
| endif() | ||
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| list(JOIN _library_definitions "\n" _library_definitions) # <------------ write the definitions to `OUTPUT_FILEPATH` | ||
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| if (EXISTS "${OUTPUT_FILEPATH}") | ||
| file(READ "${OUTPUT_FILEPATH}" _previous_definitions) | ||
| else() | ||
| unset(_previous_definitions) | ||
| endif() | ||
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| if (NOT _library_definitions STREQUAL _previous_definitions) | ||
| message(STATUS "Generating ${OUTPUT_FILEPATH}") | ||
| file(WRITE "${OUTPUT_FILEPATH}" "${_library_definitions}") | ||
| endif() | ||
| endfunction() | ||
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| __arduino_collect_required_libraries("${COLLECT_LIBRARIES_SOURCES}" _required_includes) | ||
| __arduino_resolve_libraries("${_required_includes}" _required_libraries) | ||
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| __arduino_generate_library_definitions( | ||
| "${COLLECT_LIBRARIES_TARGET}" "${_required_libraries}" | ||
| "${COLLECT_LIBRARIES_OUTPUT}") |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| set(COLLECT_LIBRARIES_CACHE "${__ARDUINO_INSTALLED_LIBRARIES_CACHE}") | ||
| set(COLLECT_LIBRARIES_OUTPUT "${_required_libraries_include}") | ||
| set(COLLECT_LIBRARIES_SOURCES "${_preprocessed_sources_list}") | ||
| set(COLLECT_LIBRARIES_TARGET "${TARGET}") |
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