Michael Fabian 'Xaymar' Dirks
9166c8a575
Prevents corrupt or bad setups from suddenly failing by simply checking if the version is compatible.
106 lines
2.7 KiB
CMake
106 lines
2.7 KiB
CMake
set(CLANG_PATH "" CACHE PATH "Path to Clang Toolset (if not in environment)")
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function(clang_format)
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cmake_parse_arguments(
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PARSE_ARGV 0
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_CLANG_FORMAT
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"DEPENDENCY;GLOBAL"
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"REGEX;VERSION"
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"TARGETS"
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)
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find_program(CLANG_FORMAT_BIN
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"clang-format"
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DOC "Path (or name) of the clang-format binary"
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HINTS
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${CLANG_PATH}
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PATHS
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/bin
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/sbin
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/usr/bin
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/usr/local/bin
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PATH_SUFFIXES
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bin
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bin64
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bin32
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)
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if(NOT CLANG_FORMAT_BIN)
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message(WARNING "Clang: Could not find clang-format at path '${CLANG_FORMAT_BIN}', disabling clang-format...")
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return()
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endif()
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# Validate Version
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if (_CLANG_FORMAT_VERSION)
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set(_VERSION_RESULT "")
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set(_VERSION_OUTPUT "")
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execute_process(
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COMMAND "${CLANG_FORMAT_BIN}" --version
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WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
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RESULT_VARIABLE _VERSION_RESULT
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OUTPUT_VARIABLE _VERSION_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE ERROR_QUIET
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)
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if(NOT _VERSION_RESULT EQUAL 0)
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message(WARNING "Clang: Could not discover version, disabling clang-format...")
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return()
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endif()
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string(REGEX MATCH "([0-9]+\.[0-9]+\.[0-9]+)" _VERSION_MATCH ${_VERSION_OUTPUT})
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if(NOT ${_VERSION_MATCH} VERSION_GREATER_EQUAL ${_CLANG_FORMAT_VERSION})
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message(WARNING "Clang: Old version discovered, disabling clang-format...")
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return()
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endif()
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endif()
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# Default Filter
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if(NOT _CLANG_FORMAT_FILTER)
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set(_CLANG_FORMAT_FILTER "\.(h|hpp|c|cpp)$")
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endif()
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# Go through each target
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foreach(_target ${_CLANG_FORMAT_TARGETS})
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# get_target_property(target_name ${_target} NAME)
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get_target_property(target_sources_rel ${_target} SOURCES)
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set(target_sources "")
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foreach(source_relative ${target_sources_rel})
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get_filename_component(source_absolute ${source_relative} ABSOLUTE)
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list(APPEND target_sources ${source_absolute})
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endforeach()
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list(FILTER target_sources INCLUDE REGEX "${_CLANG_FORMAT_FILTER}")
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unset(target_sources_rel)
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get_target_property(target_source_dir_rel ${_target} SOURCE_DIR)
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get_filename_component(target_source_dir ${target_source_dir_rel} ABSOLUTE)
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unset(target_source_dir_rel)
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add_custom_target(${_target}_CLANG-FORMAT
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COMMAND
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${CLANG_FORMAT_BIN}
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-style=file
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-i
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${target_sources}
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COMMENT
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"clang-format: Formatting ${_target}..."
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WORKING_DIRECTORY
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${target_source_dir_rel}
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)
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if(_CLANG_FORMAT_DEPENDENCY)
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add_dependencies(${_target} ${_target}_CLANG-FORMAT)
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endif()
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if(_CLANG_FORMAT_GLOBAL)
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if(TARGET CLANG-FORMAT)
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add_dependencies(CLANG-FORMAT ${_target}_CLANG-FORMAT)
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else()
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add_custom_target(CLANG-FORMAT
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DEPENDS
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${_target}_CLANG-FORMAT
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COMMENT
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"clang-format: Formatting..."
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)
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endif()
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endif()
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endforeach()
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endfunction()
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