build: Minimize I/O operations in `GenerateHeaderFrom{Json,Raw}.cmake`

pull/30842/head
Hennadii Stepanov 2 months ago
parent a5fa90706a
commit b07fe666f2
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GPG Key ID: 410108112E7EA81F

@ -5,22 +5,24 @@
file(READ ${JSON_SOURCE_PATH} hex_content HEX) file(READ ${JSON_SOURCE_PATH} hex_content HEX)
string(REGEX MATCHALL "([A-Za-z0-9][A-Za-z0-9])" bytes "${hex_content}") string(REGEX MATCHALL "([A-Za-z0-9][A-Za-z0-9])" bytes "${hex_content}")
file(WRITE ${HEADER_PATH} "#include <string_view>\n") set(header_content "#include <string_view>\n")
file(APPEND ${HEADER_PATH} "namespace json_tests{\n") string(APPEND header_content "namespace json_tests{\n")
get_filename_component(json_source_basename ${JSON_SOURCE_PATH} NAME_WE) get_filename_component(json_source_basename ${JSON_SOURCE_PATH} NAME_WE)
file(APPEND ${HEADER_PATH} "inline constexpr char detail_${json_source_basename}_bytes[]{\n") string(APPEND header_content "inline constexpr char detail_${json_source_basename}_bytes[]{\n")
set(i 0) set(i 0)
foreach(byte ${bytes}) foreach(byte ${bytes})
math(EXPR i "${i} + 1") math(EXPR i "${i} + 1")
math(EXPR remainder "${i} % 8") if(i EQUAL 8)
if(remainder EQUAL 0) set(i 0)
file(APPEND ${HEADER_PATH} "0x${byte},\n") string(APPEND header_content "0x${byte},\n")
else() else()
file(APPEND ${HEADER_PATH} "0x${byte}, ") string(APPEND header_content "0x${byte}, ")
endif() endif()
endforeach() endforeach()
file(APPEND ${HEADER_PATH} "\n};\n") string(APPEND header_content "\n};\n")
file(APPEND ${HEADER_PATH} "inline constexpr std::string_view ${json_source_basename}{std::begin(detail_${json_source_basename}_bytes), std::end(detail_${json_source_basename}_bytes)};") string(APPEND header_content "inline constexpr std::string_view ${json_source_basename}{std::begin(detail_${json_source_basename}_bytes), std::end(detail_${json_source_basename}_bytes)};")
file(APPEND ${HEADER_PATH} "\n}") string(APPEND header_content "\n}")
file(WRITE ${HEADER_PATH} "${header_content}")

@ -5,23 +5,25 @@
file(READ ${RAW_SOURCE_PATH} hex_content HEX) file(READ ${RAW_SOURCE_PATH} hex_content HEX)
string(REGEX MATCHALL "([A-Za-z0-9][A-Za-z0-9])" bytes "${hex_content}") string(REGEX MATCHALL "([A-Za-z0-9][A-Za-z0-9])" bytes "${hex_content}")
file(WRITE ${HEADER_PATH} "#include <cstddef>\n") set(header_content "#include <cstddef>\n")
file(APPEND ${HEADER_PATH} "#include <span>\n") string(APPEND header_content "#include <span>\n")
file(APPEND ${HEADER_PATH} "namespace ${RAW_NAMESPACE} {\n") string(APPEND header_content "namespace ${RAW_NAMESPACE} {\n")
get_filename_component(raw_source_basename ${RAW_SOURCE_PATH} NAME_WE) get_filename_component(raw_source_basename ${RAW_SOURCE_PATH} NAME_WE)
file(APPEND ${HEADER_PATH} "inline constexpr std::byte detail_${raw_source_basename}_raw[]{\n") string(APPEND header_content "inline constexpr std::byte detail_${raw_source_basename}_raw[]{\n")
set(i 0) set(i 0)
foreach(byte ${bytes}) foreach(byte ${bytes})
math(EXPR i "${i} + 1") math(EXPR i "${i} + 1")
math(EXPR remainder "${i} % 8") if(i EQUAL 8)
if(remainder EQUAL 0) set(i 0)
file(APPEND ${HEADER_PATH} "std::byte{0x${byte}},\n") string(APPEND header_content "std::byte{0x${byte}},\n")
else() else()
file(APPEND ${HEADER_PATH} "std::byte{0x${byte}}, ") string(APPEND header_content "std::byte{0x${byte}}, ")
endif() endif()
endforeach() endforeach()
file(APPEND ${HEADER_PATH} "\n};\n") string(APPEND header_content "\n};\n")
file(APPEND ${HEADER_PATH} "inline constexpr std::span ${raw_source_basename}{detail_${raw_source_basename}_raw};\n") string(APPEND header_content "inline constexpr std::span ${raw_source_basename}{detail_${raw_source_basename}_raw};\n")
file(APPEND ${HEADER_PATH} "}") string(APPEND header_content "}")
file(WRITE ${HEADER_PATH} "${header_content}")

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