ClickHouse/contrib/cctz-cmake/CMakeLists.txt

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CMake
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set(LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/cctz")
set (SRCS
"${LIBRARY_DIR}/src/civil_time_detail.cc"
"${LIBRARY_DIR}/src/time_zone_fixed.cc"
"${LIBRARY_DIR}/src/time_zone_format.cc"
"${LIBRARY_DIR}/src/time_zone_if.cc"
"${LIBRARY_DIR}/src/time_zone_impl.cc"
"${LIBRARY_DIR}/src/time_zone_info.cc"
"${LIBRARY_DIR}/src/time_zone_libc.cc"
"${LIBRARY_DIR}/src/time_zone_lookup.cc"
"${LIBRARY_DIR}/src/time_zone_posix.cc"
"${LIBRARY_DIR}/src/zone_info_source.cc"
)
add_library (_cctz ${SRCS})
target_include_directories (_cctz PUBLIC "${LIBRARY_DIR}/include")
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if (OS_FREEBSD)
# yes, need linux, because bsd check inside linux in time_zone_libc.cc:24
target_compile_definitions (_cctz PRIVATE __USE_BSD linux _XOPEN_SOURCE=600)
endif ()
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# Related to time_zones table:
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# TimeZones.generated.cpp is autogenerated each time during a build
set(TIMEZONES_FILE "${CMAKE_CURRENT_BINARY_DIR}/TimeZones.generated.cpp")
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# remove existing copies so that its generated fresh on each build.
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file(REMOVE ${TIMEZONES_FILE})
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# get the list of timezones from tzdata shipped with cctz
set(TZDIR "${LIBRARY_DIR}/testdata/zoneinfo")
file(STRINGS "${LIBRARY_DIR}/testdata/version" TZDATA_VERSION)
set_property(GLOBAL PROPERTY TZDATA_VERSION_PROP "${TZDATA_VERSION}")
message(STATUS "Packaging with tzdata version: ${TZDATA_VERSION}")
# each file in that dir (except of tab and localtime) store the info about timezone
execute_process(COMMAND
bash -c "cd ${TZDIR} && find * -type f -and ! -name '*.tab' -and ! -name 'localtime' | LC_ALL=C sort | paste -sd ';' -"
OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE TIMEZONES)
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file(APPEND ${TIMEZONES_FILE} "// autogenerated by ClickHouse/contrib/cctz-cmake/CMakeLists.txt\n")
file(APPEND ${TIMEZONES_FILE} "#include <incbin.h>\n")
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set (COUNTER 1)
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foreach(TIMEZONE ${TIMEZONES})
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file(APPEND ${TIMEZONES_FILE} "INCBIN(resource_timezone${COUNTER}, \"${TZDIR}/${TIMEZONE}\");\n")
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MATH(EXPR COUNTER "${COUNTER}+1")
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endforeach(TIMEZONE)
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file(APPEND ${TIMEZONES_FILE} "const char * auto_time_zones[] {\n" )
foreach(TIMEZONE ${TIMEZONES})
file(APPEND ${TIMEZONES_FILE} " \"${TIMEZONE}\",\n")
MATH(EXPR COUNTER "${COUNTER}+1")
endforeach(TIMEZONE)
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file(APPEND ${TIMEZONES_FILE} " nullptr\n};\n\n")
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file(APPEND ${TIMEZONES_FILE} "#include <string_view>\n\n")
file(APPEND ${TIMEZONES_FILE} "std::string_view getTimeZone(const char * name)\n{\n" )
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set (COUNTER 1)
foreach(TIMEZONE ${TIMEZONES})
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file(APPEND ${TIMEZONES_FILE} " if (std::string_view(\"${TIMEZONE}\") == name) return { reinterpret_cast<const char *>(gresource_timezone${COUNTER}Data), gresource_timezone${COUNTER}Size };\n")
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MATH(EXPR COUNTER "${COUNTER}+1")
endforeach(TIMEZONE)
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file(APPEND ${TIMEZONES_FILE} " return {};\n")
file(APPEND ${TIMEZONES_FILE} "}\n")
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add_library (tzdata ${TIMEZONES_FILE})
target_link_libraries(tzdata ch_contrib::incbin)
target_link_libraries(_cctz tzdata)
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add_library(ch_contrib::cctz ALIAS _cctz)