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https://github.com/Dingo-Shenanigans/ReSkate.git
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51 lines
2.6 KiB
CMake
51 lines
2.6 KiB
CMake
# Assemble contributor-facing JSON fragments using CMake's built-in JSON API.
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# No Python, package manager, or runtime file scanning is required.
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function(dingosdk_read_json result path)
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set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${path}")
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file(READ "${path}" content)
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string(JSON kind ERROR_VARIABLE error TYPE "${content}")
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if(NOT error STREQUAL "NOTFOUND" OR NOT kind STREQUAL "OBJECT")
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message(FATAL_ERROR "Expected a JSON object in ${path}: ${error}")
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endif()
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set(${result} "${content}" PARENT_SCOPE)
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endfunction()
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function(dingosdk_append_member result object member value)
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if(NOT member MATCHES "^[a-z_]+$")
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message(FATAL_ERROR "Invalid profile section name '${member}'")
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endif()
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string(JSON existing ERROR_VARIABLE error TYPE "${object}" "${member}")
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if(error STREQUAL "NOTFOUND")
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message(FATAL_ERROR "Duplicate assembled section '${member}'")
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endif()
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string(JSON count LENGTH "${object}")
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string(REGEX REPLACE "\\}[ \t\r\n]*$" "" body "${object}")
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if(count GREATER 0)
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string(APPEND body ",")
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endif()
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# Preserve source text so the strict JSON reader can reject duplicate keys
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# instead of silently normalizing them away during CMake assembly.
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set(${result} "${body}\"${member}\":${value}}" PARENT_SCOPE)
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endfunction()
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set(profile_data_root "${PROJECT_SOURCE_DIR}/config")
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dingosdk_read_json(profile_manifest "${profile_data_root}/defaults/manifest.json")
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string(JSON base_name GET "${profile_manifest}" base)
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dingosdk_read_json(profile_defaults "${profile_data_root}/defaults/${base_name}")
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string(JSON section_count LENGTH "${profile_manifest}" sections)
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math(EXPR last_section "${section_count}-1")
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foreach(index RANGE ${last_section})
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string(JSON section MEMBER "${profile_manifest}" sections ${index})
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string(JSON filename GET "${profile_manifest}" sections "${section}")
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dingosdk_read_json(fragment "${profile_data_root}/defaults/${filename}")
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dingosdk_append_member(profile_defaults "${profile_defaults}" "${section}" "${fragment}")
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endforeach()
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/generated")
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# Keep a complete copy in the build directory for validation and users who
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# need a legacy loose defaults override.
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/generated/reskate.defaults.json" "${profile_defaults}\n")
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string(HEX "${profile_defaults}" DINGOSDK_DEFAULTS_HEX)
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string(REGEX REPLACE "(..)" "0x\\1," DINGOSDK_DEFAULTS_BYTES "${DINGOSDK_DEFAULTS_HEX}")
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configure_file(cmake/templates/profile_defaults.h.in generated/embedded_profile_defaults.h @ONLY)
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