forked from bartvdbraak/blender
102 lines
3.1 KiB
CMake
102 lines
3.1 KiB
CMake
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright 2020 Blender Foundation.
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# - Find clang-tidy executable
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#
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# Find the native clang-tidy executable
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#
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# This module defines
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# CLANG_TIDY_EXECUTABLE, the ful lpath to clang-tidy executable
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#
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# CLANG_TIDY_VERSION, the full version of the clang-tidy in the
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# major,minor.patch format
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#
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# CLANG_TIDY_VERSION_MAJOR,
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# CLANG_TIDY_VERSION_MINOR,
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# CLANG_TIDY_VERSION_PATCH, individual components of the clang-tidy version.
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#
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# CLANG_TIDY_FOUND, If false, do not try to use Eigen3.
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# If CLANG_TIDY_ROOT_DIR was defined in the environment, use it.
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if(NOT CLANG_TIDY_ROOT_DIR AND NOT $ENV{CLANG_TIDY_ROOT_DIR} STREQUAL "")
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set(CLANG_TIDY_ROOT_DIR $ENV{CLANG_TIDY_ROOT_DIR})
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endif()
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set(_clang_tidy_SEARCH_DIRS
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${CLANG_TIDY_ROOT_DIR}
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/usr/local/bin
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)
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# TODO(sergey): Find more reliable way of finding the latest clang-tidy.
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find_program(CLANG_TIDY_EXECUTABLE
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NAMES
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clang-tidy-12
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clang-tidy-11
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clang-tidy-10
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clang-tidy-9
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clang-tidy-8
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clang-tidy-7
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clang-tidy
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HINTS
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${_clang_tidy_SEARCH_DIRS}
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)
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if(CLANG_TIDY_EXECUTABLE AND NOT EXISTS ${CLANG_TIDY_EXECUTABLE})
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message(WARNING "Cached or directly specified Clang-Tidy executable does not exist.")
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set(CLANG_TIDY_FOUND FALSE)
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elseif(CLANG_TIDY_EXECUTABLE)
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# Mark clang-tidy as found.
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set(CLANG_TIDY_FOUND TRUE)
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# Setup fallback values.
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set(CLANG_TIDY_VERSION_MAJOR 0)
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set(CLANG_TIDY_VERSION_MINOR 0)
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set(CLANG_TIDY_VERSION_PATCH 0)
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# Get version from the output.
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#
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# NOTE: Don't use name of the executable file since that only includes a
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# major version. Also, even the major version might be missing in the
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# executable name.
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execute_process(COMMAND ${CLANG_TIDY_EXECUTABLE} -version
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OUTPUT_VARIABLE CLANG_TIDY_VERSION_RAW
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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# Parse parts.
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if(CLANG_TIDY_VERSION_RAW MATCHES "LLVM version .*")
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# Strip the LLVM prefix and get list of individual version components.
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string(REGEX REPLACE
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".*LLVM version ([.0-9]+).*" "\\1"
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CLANG_SEMANTIC_VERSION "${CLANG_TIDY_VERSION_RAW}")
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string(REPLACE "." ";" CLANG_VERSION_PARTS "${CLANG_SEMANTIC_VERSION}")
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list(LENGTH CLANG_VERSION_PARTS NUM_CLANG_TIDY_VERSION_PARTS)
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# Extract components into corresponding variables.
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if(NUM_CLANG_TIDY_VERSION_PARTS GREATER 0)
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list(GET CLANG_VERSION_PARTS 0 CLANG_TIDY_VERSION_MAJOR)
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endif()
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if(NUM_CLANG_TIDY_VERSION_PARTS GREATER 1)
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list(GET CLANG_VERSION_PARTS 1 CLANG_TIDY_VERSION_MINOR)
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endif()
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if(NUM_CLANG_TIDY_VERSION_PARTS GREATER 2)
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list(GET CLANG_VERSION_PARTS 2 CLANG_TIDY_VERSION_PATCH)
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endif()
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# Unset temp variables.
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unset(NUM_CLANG_TIDY_VERSION_PARTS)
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unset(CLANG_SEMANTIC_VERSION)
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unset(CLANG_VERSION_PARTS)
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endif()
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# Construct full semantic version.
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set(CLANG_TIDY_VERSION "${CLANG_TIDY_VERSION_MAJOR}.\
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${CLANG_TIDY_VERSION_MINOR}.\
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${CLANG_TIDY_VERSION_PATCH}")
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unset(CLANG_TIDY_VERSION_RAW)
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message(STATUS "Found clang-tidy ${CLANG_TIDY_EXECUTABLE} (${CLANG_TIDY_VERSION})")
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else()
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set(CLANG_TIDY_FOUND FALSE)
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endif()
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