vendor Catch2 and ETL
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258
contrib/fsfw_contrib/Catch2-3.7.1/CMake/Findcodecov.cmake
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258
contrib/fsfw_contrib/Catch2-3.7.1/CMake/Findcodecov.cmake
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# This file is part of CMake-codecov.
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#
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# Copyright (c)
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# 2015-2017 RWTH Aachen University, Federal Republic of Germany
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#
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# See the LICENSE file in the package base directory for details
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#
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# Written by Alexander Haase, alexander.haase@rwth-aachen.de
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#
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# Add an option to choose, if coverage should be enabled or not. If enabled
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# marked targets will be build with coverage support and appropriate targets
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# will be added. If disabled coverage will be ignored for *ALL* targets.
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option(ENABLE_COVERAGE "Enable coverage build." OFF)
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set(COVERAGE_FLAG_CANDIDATES
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# gcc and clang
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"-O0 -g -fprofile-arcs -ftest-coverage"
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# gcc and clang fallback
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"-O0 -g --coverage"
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)
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# Add coverage support for target ${TNAME} and register target for coverage
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# evaluation. If coverage is disabled or not supported, this function will
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# simply do nothing.
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#
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# Note: This function is only a wrapper to define this function always, even if
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# coverage is not supported by the compiler or disabled. This function must
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# be defined here, because the module will be exited, if there is no coverage
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# support by the compiler or it is disabled by the user.
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function (add_coverage TNAME)
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# only add coverage for target, if coverage is support and enabled.
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if (ENABLE_COVERAGE)
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foreach (TNAME ${ARGV})
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add_coverage_target(${TNAME})
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endforeach ()
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endif ()
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endfunction (add_coverage)
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# Add global target to gather coverage information after all targets have been
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# added. Other evaluation functions could be added here, after checks for the
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# specific module have been passed.
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#
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# Note: This function is only a wrapper to define this function always, even if
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# coverage is not supported by the compiler or disabled. This function must
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# be defined here, because the module will be exited, if there is no coverage
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# support by the compiler or it is disabled by the user.
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function (coverage_evaluate)
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# add lcov evaluation
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if (LCOV_FOUND)
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lcov_capture_initial()
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lcov_capture()
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endif (LCOV_FOUND)
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endfunction ()
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# Exit this module, if coverage is disabled. add_coverage is defined before this
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# return, so this module can be exited now safely without breaking any build-
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# scripts.
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if (NOT ENABLE_COVERAGE)
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return()
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endif ()
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# Find the reuired flags foreach language.
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set(CMAKE_REQUIRED_QUIET_SAVE ${CMAKE_REQUIRED_QUIET})
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set(CMAKE_REQUIRED_QUIET ${codecov_FIND_QUIETLY})
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get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES)
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foreach (LANG ${ENABLED_LANGUAGES})
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# Coverage flags are not dependent on language, but the used compiler. So
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# instead of searching flags foreach language, search flags foreach compiler
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# used.
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set(COMPILER ${CMAKE_${LANG}_COMPILER_ID})
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if (NOT COVERAGE_${COMPILER}_FLAGS)
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foreach (FLAG ${COVERAGE_FLAG_CANDIDATES})
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if(NOT CMAKE_REQUIRED_QUIET)
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message(STATUS "Try ${COMPILER} code coverage flag = [${FLAG}]")
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endif()
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set(CMAKE_REQUIRED_FLAGS "${FLAG}")
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unset(COVERAGE_FLAG_DETECTED CACHE)
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if (${LANG} STREQUAL "C")
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include(CheckCCompilerFlag)
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check_c_compiler_flag("${FLAG}" COVERAGE_FLAG_DETECTED)
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elseif (${LANG} STREQUAL "CXX")
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include(CheckCXXCompilerFlag)
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check_cxx_compiler_flag("${FLAG}" COVERAGE_FLAG_DETECTED)
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elseif (${LANG} STREQUAL "Fortran")
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# CheckFortranCompilerFlag was introduced in CMake 3.x. To be
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# compatible with older Cmake versions, we will check if this
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# module is present before we use it. Otherwise we will define
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# Fortran coverage support as not available.
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include(CheckFortranCompilerFlag OPTIONAL
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RESULT_VARIABLE INCLUDED)
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if (INCLUDED)
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check_fortran_compiler_flag("${FLAG}"
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COVERAGE_FLAG_DETECTED)
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elseif (NOT CMAKE_REQUIRED_QUIET)
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message("-- Performing Test COVERAGE_FLAG_DETECTED")
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message("-- Performing Test COVERAGE_FLAG_DETECTED - Failed"
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" (Check not supported)")
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endif ()
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endif()
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if (COVERAGE_FLAG_DETECTED)
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set(COVERAGE_${COMPILER}_FLAGS "${FLAG}"
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CACHE STRING "${COMPILER} flags for code coverage.")
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mark_as_advanced(COVERAGE_${COMPILER}_FLAGS)
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break()
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else ()
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message(WARNING "Code coverage is not available for ${COMPILER}"
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" compiler. Targets using this compiler will be "
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"compiled without it.")
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endif ()
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endforeach ()
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endif ()
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endforeach ()
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set(CMAKE_REQUIRED_QUIET ${CMAKE_REQUIRED_QUIET_SAVE})
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# Helper function to get the language of a source file.
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function (codecov_lang_of_source FILE RETURN_VAR)
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get_filename_component(FILE_EXT "${FILE}" EXT)
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string(TOLOWER "${FILE_EXT}" FILE_EXT)
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string(SUBSTRING "${FILE_EXT}" 1 -1 FILE_EXT)
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get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES)
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foreach (LANG ${ENABLED_LANGUAGES})
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list(FIND CMAKE_${LANG}_SOURCE_FILE_EXTENSIONS "${FILE_EXT}" TEMP)
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if (NOT ${TEMP} EQUAL -1)
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set(${RETURN_VAR} "${LANG}" PARENT_SCOPE)
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return()
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endif ()
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endforeach()
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set(${RETURN_VAR} "" PARENT_SCOPE)
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endfunction ()
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# Helper function to get the relative path of the source file destination path.
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# This path is needed by FindGcov and FindLcov cmake files to locate the
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# captured data.
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function (codecov_path_of_source FILE RETURN_VAR)
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string(REGEX MATCH "TARGET_OBJECTS:([^ >]+)" _source ${FILE})
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# If expression was found, SOURCEFILE is a generator-expression for an
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# object library. Currently we found no way to call this function automatic
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# for the referenced target, so it must be called in the directoryso of the
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# object library definition.
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if (NOT "${_source}" STREQUAL "")
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set(${RETURN_VAR} "" PARENT_SCOPE)
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return()
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endif ()
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string(REPLACE "${CMAKE_CURRENT_BINARY_DIR}/" "" FILE "${FILE}")
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if(IS_ABSOLUTE ${FILE})
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file(RELATIVE_PATH FILE ${CMAKE_CURRENT_SOURCE_DIR} ${FILE})
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endif()
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# get the right path for file
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string(REPLACE ".." "__" PATH "${FILE}")
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set(${RETURN_VAR} "${PATH}" PARENT_SCOPE)
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endfunction()
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# Add coverage support for target ${TNAME} and register target for coverage
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# evaluation.
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function(add_coverage_target TNAME)
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# Check if all sources for target use the same compiler. If a target uses
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# e.g. C and Fortran mixed and uses different compilers (e.g. clang and
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# gfortran) this can trigger huge problems, because different compilers may
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# use different implementations for code coverage.
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get_target_property(TSOURCES ${TNAME} SOURCES)
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set(TARGET_COMPILER "")
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set(ADDITIONAL_FILES "")
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foreach (FILE ${TSOURCES})
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# If expression was found, FILE is a generator-expression for an object
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# library. Object libraries will be ignored.
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string(REGEX MATCH "TARGET_OBJECTS:([^ >]+)" _file ${FILE})
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if ("${_file}" STREQUAL "")
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codecov_lang_of_source(${FILE} LANG)
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if (LANG)
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list(APPEND TARGET_COMPILER ${CMAKE_${LANG}_COMPILER_ID})
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list(APPEND ADDITIONAL_FILES "${FILE}.gcno")
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list(APPEND ADDITIONAL_FILES "${FILE}.gcda")
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endif ()
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endif ()
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endforeach ()
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list(REMOVE_DUPLICATES TARGET_COMPILER)
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list(LENGTH TARGET_COMPILER NUM_COMPILERS)
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if (NUM_COMPILERS GREATER 1)
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message(WARNING "Can't use code coverage for target ${TNAME}, because "
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"it will be compiled by incompatible compilers. Target will be "
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"compiled without code coverage.")
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return()
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elseif (NUM_COMPILERS EQUAL 0)
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message(WARNING "Can't use code coverage for target ${TNAME}, because "
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"it uses an unknown compiler. Target will be compiled without "
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"code coverage.")
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return()
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elseif (NOT DEFINED "COVERAGE_${TARGET_COMPILER}_FLAGS")
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# A warning has been printed before, so just return if flags for this
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# compiler aren't available.
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return()
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endif()
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# enable coverage for target
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set_property(TARGET ${TNAME} APPEND_STRING
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PROPERTY COMPILE_FLAGS " ${COVERAGE_${TARGET_COMPILER}_FLAGS}")
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set_property(TARGET ${TNAME} APPEND_STRING
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PROPERTY LINK_FLAGS " ${COVERAGE_${TARGET_COMPILER}_FLAGS}")
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# Add gcov files generated by compiler to clean target.
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set(CLEAN_FILES "")
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foreach (FILE ${ADDITIONAL_FILES})
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codecov_path_of_source(${FILE} FILE)
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list(APPEND CLEAN_FILES "CMakeFiles/${TNAME}.dir/${FILE}")
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endforeach()
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set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES
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"${CLEAN_FILES}")
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add_gcov_target(${TNAME})
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add_lcov_target(${TNAME})
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endfunction(add_coverage_target)
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# Include modules for parsing the collected data and output it in a readable
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# format (like gcov and lcov).
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find_package(Gcov)
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find_package(Lcov)
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