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FindCppCheck.cmake
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FindCppCheck.cmake
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# Locate cppcheck
#
# This module defines
# CPPCHECK_BIN, where to find cppcheck
#
# To help find the binary you can set CPPCHECK_ROOT_DIR to search a custom path
# Exported argumets include
# CPPCHECK_FOUND, if false, do not try to link to cppcheck --- if (CPPCHECK_FOUND)
#
# CPPCHECK_THREADS_ARG - Number of threads to use (e.g. -j 3)
# CPPCHECK_PROJECT_ARG - The project to use (compile_comands.json)
# CPPCHECK_BUILD_DIR_ARG - The build output directory
# CPPCHECK_ERROR_EXITCODE_ARG - The exit code if an error is found
# CPPCHECK_SUPPRESSIONS - A suppressiosn file to use
# CPPCHECK_CHECKS_ARGS - The checks to run
# CPPCHECK_OTHER_ARGS - Any other arguments
# CPPCHECK_COMMAND - The full command to run the default cppcheck configuration
# CPPCHECK_EXCLUDES - A list of files or folders to exclude from the scan. Must be the full path
#
# if CPPCHECK_XML_OUTPUT is set before calling this. CppCheck will create an xml file with that name
# find the cppcheck binary
# if custom path check there first
if(CPPCHECK_ROOT_DIR)
find_program(CPPCHECK_BIN
NAMES
cppcheck
PATHS
"${CPPCHECK_ROOT_DIR}"
NO_DEFAULT_PATH)
endif()
find_program(CPPCHECK_BIN NAMES cppcheck)
if(CPPCHECK_BIN)
execute_process(COMMAND ${CPPCHECK_BIN} --version
OUTPUT_VARIABLE CPPCHECK_VERSION
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
set(CPPCHECK_THREADS_ARG "-j4" CACHE STRING "The number of threads to use")
set(CPPCHECK_PROJECT_ARG "--project=${PROJECT_BINARY_DIR}/compile_commands.json")
set(CPPCHECK_BUILD_DIR_ARG "--cppcheck-build-dir=${PROJECT_BINARY_DIR}/analysis/cppcheck" CACHE STRING "The build directory to use")
# Don't show thise errors
if(EXISTS "${CMAKE_SOURCE_DIR}/.cppcheck_suppressions")
set(CPPCHECK_SUPPRESSIONS "--suppressions-list=${CMAKE_SOURCE_DIR}/.cppcheck_suppressions" CACHE STRING "The suppressions file to use")
else()
set(CPPCHECK_SUPPRESSIONS "" CACHE STRING "The suppressions file to use")
endif()
# Show these errors but don't fail the build
# These are mainly going to be from the "warning" category that is enabled by default later
if(EXISTS "${CMAKE_SOURCE_DIR}/.cppcheck_exitcode_suppressions")
set(CPPCHECK_EXITCODE_SUPPRESSIONS "--exitcode-suppressions=${CMAKE_SOURCE_DIR}/.cppcheck_exitcode_suppressions" CACHE STRING "The exitcode suppressions file to use")
else()
set(CPPCHECK_EXITCODE_SUPPRESSIONS "" CACHE STRING "The exitcode suppressions file to use")
endif()
set(CPPCHECK_ERROR_EXITCODE_ARG "--error-exitcode=1" CACHE STRING "The exitcode to use if an error is found")
set(CPPCHECK_CHECKS_ARGS "--enable=warning" CACHE STRING "Arguments for the checks to run")
set(CPPCHECK_OTHER_ARGS "" CACHE STRING "Other arguments")
set(_CPPCHECK_EXCLUDES)
foreach(ex ${CPPCHECK_EXCLUDES})
list(APPEND _CPPCHECK_EXCLUDES "-i${ex}")
endforeach(ex)
set(CPPCHECK_ALL_ARGS
${CPPCHECK_THREADS_ARG}
${CPPCHECK_PROJECT_ARG}
${CPPCHECK_BUILD_DIR_ARG}
${CPPCHECK_ERROR_EXITCODE_ARG}
${CPPCHECK_SUPPRESSIONS}
${CPPCHECK_EXITCODE_SUPPRESSIONS}
${CPPCHECK_CHECKS_ARGS}
${CPPCHECK_OTHER_ARGS}
${_CPPCHECK_EXCLUDES}
)
if(NOT CPPCHECK_XML_OUTPUT)
set(CPPCHECK_COMMAND
${CPPCHECK_BIN}
${CPPCHECK_ALL_ARGS}
)
else()
set(CPPCHECK_COMMAND
${CPPCHECK_BIN}
${CPPCHECK_ALL_ARGS}
--xml
--xml-version=2
2> ${CPPCHECK_XML_OUTPUT})
endif()
endif()
# handle the QUIETLY and REQUIRED arguments and set YAMLCPP_FOUND to TRUE if all listed variables are TRUE
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(
CPPCHECK
DEFAULT_MSG
CPPCHECK_BIN)
mark_as_advanced(
CPPCHECK_BIN
CPPCHECK_THREADS_ARG
CPPCHECK_PROJECT_ARG
CPPCHECK_BUILD_DIR_ARG
CPPCHECK_ERROR_EXITCODE_ARG
CPPCHECK_SUPPRESSIONS
CPPCHECK_CHECKS_ARGS
CPPCHECK_OTHER_ARGS)
if(CPPCHECK_FOUND)
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/analysis/cppcheck)
add_custom_target(cppcheck-analysis
COMMAND ${CPPCHECK_COMMAND})
message("cppcheck found. Use cppccheck-analysis targets to run it")
else()
message("cppcheck not found. No cppccheck-analysis targets")
endif()