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find_program(LCOV_BINARY lcov REQUIRED)
find_program(GENHTML_BINARY NAMES genhtml REQUIRED)
find_program(FASTCOV_BINARY fastcov REQUIRED)
set(COVERAGE_COMPILER_FLAGS "-g -O0 --coverage -fprofile-arcs -ftest-coverage"
CACHE INTERNAL "")
##
# Add compilers flags for code coverage.
##
function(append_coverage_compiler_flags)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COVERAGE_COMPILER_FLAGS}" PARENT_SCOPE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COVERAGE_COMPILER_FLAGS}" PARENT_SCOPE)
message(STATUS "Appending code coverage compiler flags: ${COVERAGE_COMPILER_FLAGS}")
endfunction()
##
# Sets up code coverage targets NAME and NAME-reset
#
# NAME-reset: Reset code coverage counters to zero.
# NAME: Generate code coverage report since the last reset.
#
# Options:
# NAME: name of the target
# DEPENDENCIES: list of dependencies
# PATHS: additional source code directories to include in the report
#
##
function(setup_code_coverage_fastcov)
set(options NONE)
set(oneValueArgs NAME PATH)
set(multiValueArgs DEPENDENCIES EXCLUDE)
cmake_parse_arguments(
COVERAGE "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
set(EXCLUDES -e /usr/include)
foreach(DIR ${COVERAGE_EXCLUDE})
list(APPEND EXCLUDES "${DIR}")
message(STATUS "Exclude ${DIR} in coverage reports")
endforeach()
if(DEFINED ENV{FASTCOV_PARALLEL_JOBS})
set(FASTCOV_PARALLEL_JOBS $ENV{FASTCOV_PARALLEL_JOBS})
else()
include(ProcessorCount)
ProcessorCount(FASTCOV_PARALLEL_JOBS)
endif()
add_custom_target(${COVERAGE_NAME}-reset
COMMAND
${FASTCOV_BINARY} -d ${COVERAGE_PATH} ${EXCLUDES} --zerocounters
-j${FASTCOV_PARALLEL_JOBS}
COMMENT
"Resetting code coverage counters to zero."
)
add_custom_target(${COVERAGE_NAME}-json
COMMAND
${FASTCOV_BINARY}
-b -d ${COVERAGE_PATH} ${EXCLUDES} -o coverage.json
-j${FASTCOV_PARALLEL_JOBS} -X
DEPENDS
${COVERAGE_DEPENDENCIES}
COMMENT
"Generate code coverage JSON report."
)
add_custom_target(${COVERAGE_NAME}
COMMAND
${FASTCOV_BINARY} -C coverage.json --lcov -o coverage.info
COMMAND
${GENHTML_BINARY} --branch-coverage --demangle-cpp --no-prefix -o coverage coverage.info
DEPENDS
coverage-json
COMMENT
"Generate code coverage report."
)
endfunction()
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