SC-F001 way better logging and parameters. not integrated yet but.
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# littlefs_create_partition_image
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#
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# Create a littlefs image of the specified directory on the host during build and optionally
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# have the created image flashed using `idf.py flash`
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set(littlefs_py_venv "${CMAKE_CURRENT_BINARY_DIR}/littlefs_py_venv")
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set(littlefs_py_requirements "${CMAKE_CURRENT_LIST_DIR}/image-building-requirements.txt")
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set_directory_properties(PROPERTIES
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ADDITIONAL_CLEAN_FILES "${littlefs_py_venv}"
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)
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function(littlefs_create_partition_image partition base_dir)
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set(options FLASH_IN_PROJECT)
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set(multi DEPENDS)
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cmake_parse_arguments(arg "${options}" "" "${multi}" "${ARGN}")
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idf_build_get_property(idf_path IDF_PATH)
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get_filename_component(base_dir_full_path ${base_dir} ABSOLUTE)
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partition_table_get_partition_info(size "--partition-name ${partition}" "size")
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partition_table_get_partition_info(offset "--partition-name ${partition}" "offset")
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if("${size}" AND "${offset}")
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set(image_file ${CMAKE_BINARY_DIR}/${partition}.bin)
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if(CMAKE_HOST_WIN32)
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set(littlefs_py "${littlefs_py_venv}/Scripts/littlefs-python.exe")
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add_custom_command(
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OUTPUT ${littlefs_py_venv}
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COMMAND ${PYTHON} -m venv ${littlefs_py_venv} && ${littlefs_py_venv}/Scripts/pip.exe install -r ${littlefs_py_requirements}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${littlefs_py_requirements}
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)
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else()
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set(littlefs_py "${littlefs_py_venv}/bin/littlefs-python")
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add_custom_command(
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OUTPUT ${littlefs_py_venv}
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COMMAND ${PYTHON} -m venv ${littlefs_py_venv} && ${littlefs_py_venv}/bin/pip install -r ${littlefs_py_requirements}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${littlefs_py_requirements}
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)
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endif()
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# Execute LittleFS image generation; this always executes as there is no way to specify for CMake to watch for
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# contents of the base dir changing.
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add_custom_target(littlefs_${partition}_bin ALL
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COMMAND ${littlefs_py} create ${base_dir_full_path} ${image_file} -v --fs-size=${size} --name-max=${CONFIG_LITTLEFS_OBJ_NAME_LEN} --block-size=4096
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DEPENDS ${arg_DEPENDS} ${littlefs_py_venv}
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)
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set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY
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ADDITIONAL_MAKE_CLEAN_FILES
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${image_file})
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set(IDF_VER_NO_V "${IDF_VERSION_MAJOR}.${IDF_VERSION_MINOR}")
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if(${IDF_VER_NO_V} VERSION_LESS 5.0)
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message(WARNING "Unsupported/unmaintained/deprecated ESP-IDF version ${IDF_VER}")
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endif()
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idf_component_get_property(main_args esptool_py FLASH_ARGS)
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idf_component_get_property(sub_args esptool_py FLASH_SUB_ARGS)
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esptool_py_flash_target(${partition}-flash "${main_args}" "${sub_args}")
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esptool_py_flash_target_image(${partition}-flash "${partition}" "${offset}" "${image_file}")
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add_dependencies(${partition}-flash littlefs_${partition}_bin)
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if(arg_FLASH_IN_PROJECT)
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esptool_py_flash_target_image(flash "${partition}" "${offset}" "${image_file}")
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add_dependencies(flash littlefs_${partition}_bin)
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endif()
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else()
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set(message "Failed to create littlefs image for partition '${partition}'. "
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"Check project configuration if using the correct partition table file."
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)
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fail_at_build_time(littlefs_${partition}_bin "${message}")
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endif()
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endfunction()
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