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301 lines
10 KiB
301 lines
10 KiB
#.rst:
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# CTestCoverageCollectGCOV
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# ------------------------
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#
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# This module provides the ``ctest_coverage_collect_gcov`` function.
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#
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# This function runs gcov on all .gcda files found in the binary tree
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# and packages the resulting .gcov files into a tar file.
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# This tarball also contains the following:
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#
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# * *data.json* defines the source and build directories for use by CDash.
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# * *Labels.json* indicates any :prop_sf:`LABELS` that have been set on the
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# source files.
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# * The *uncovered* directory holds any uncovered files found by
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# :variable:`CTEST_EXTRA_COVERAGE_GLOB`.
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#
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# After generating this tar file, it can be sent to CDash for display with the
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# :command:`ctest_submit(CDASH_UPLOAD)` command.
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#
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# .. command:: cdash_coverage_collect_gcov
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#
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# ::
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#
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# ctest_coverage_collect_gcov(TARBALL <tarfile>
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# [SOURCE <source_dir>][BUILD <build_dir>]
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# [GCOV_COMMAND <gcov_command>]
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# [GCOV_OPTIONS <options>...]
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# )
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#
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# Run gcov and package a tar file for CDash. The options are:
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#
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# ``TARBALL <tarfile>``
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# Specify the location of the ``.tar`` file to be created for later
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# upload to CDash. Relative paths will be interpreted with respect
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# to the top-level build directory.
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#
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# ``SOURCE <source_dir>``
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# Specify the top-level source directory for the build.
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# Default is the value of :variable:`CTEST_SOURCE_DIRECTORY`.
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#
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# ``BUILD <build_dir>``
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# Specify the top-level build directory for the build.
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# Default is the value of :variable:`CTEST_BINARY_DIRECTORY`.
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#
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# ``GCOV_COMMAND <gcov_command>``
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# Specify the full path to the ``gcov`` command on the machine.
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# Default is the value of :variable:`CTEST_COVERAGE_COMMAND`.
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#
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# ``GCOV_OPTIONS <options>...``
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# Specify options to be passed to gcov. The ``gcov`` command
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# is run as ``gcov <options>... -o <gcov-dir> <file>.gcda``.
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# If not specified, the default option is just ``-b``.
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#
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# ``GLOB``
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# Recursively search for .gcda files in build_dir rather than
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# determining search locations by reading TargetDirectories.txt.
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#
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# ``DELETE``
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# Delete coverage files after they've been packaged into the .tar.
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#
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# ``QUIET``
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# Suppress non-error messages that otherwise would have been
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# printed out by this function.
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#=============================================================================
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# Copyright 2014-2015 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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include(CMakeParseArguments)
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function(ctest_coverage_collect_gcov)
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set(options QUIET GLOB DELETE)
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set(oneValueArgs TARBALL SOURCE BUILD GCOV_COMMAND)
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set(multiValueArgs GCOV_OPTIONS)
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cmake_parse_arguments(GCOV "${options}" "${oneValueArgs}"
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"${multiValueArgs}" "" ${ARGN} )
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if(NOT DEFINED GCOV_TARBALL)
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message(FATAL_ERROR
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"TARBALL must be specified. for ctest_coverage_collect_gcov")
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endif()
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if(NOT DEFINED GCOV_SOURCE)
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set(source_dir "${CTEST_SOURCE_DIRECTORY}")
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else()
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set(source_dir "${GCOV_SOURCE}")
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endif()
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if(NOT DEFINED GCOV_BUILD)
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set(binary_dir "${CTEST_BINARY_DIRECTORY}")
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else()
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set(binary_dir "${GCOV_BUILD}")
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endif()
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if(NOT DEFINED GCOV_GCOV_COMMAND)
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set(gcov_command "${CTEST_COVERAGE_COMMAND}")
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else()
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set(gcov_command "${GCOV_GCOV_COMMAND}")
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endif()
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# run gcov on each gcda file in the binary tree
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set(gcda_files)
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set(label_files)
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if (GCOV_GLOB)
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file(GLOB_RECURSE gfiles RELATIVE ${binary_dir} "${binary_dir}/*.gcda")
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list(LENGTH gfiles len)
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# if we have gcda files then also grab the labels file for that target
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if(${len} GREATER 0)
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file(GLOB_RECURSE lfiles RELATIVE ${binary_dir} "${binary_dir}/Labels.json")
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list(APPEND gcda_files ${gfiles})
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list(APPEND label_files ${lfiles})
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endif()
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else()
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# look for gcda files in the target directories
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# this will be faster and only look where the files will be
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file(STRINGS "${binary_dir}/CMakeFiles/TargetDirectories.txt" target_dirs
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ENCODING UTF-8)
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foreach(target_dir ${target_dirs})
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file(GLOB_RECURSE gfiles RELATIVE ${binary_dir} "${target_dir}/*.gcda")
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list(LENGTH gfiles len)
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# if we have gcda files then also grab the labels file for that target
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if(${len} GREATER 0)
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file(GLOB_RECURSE lfiles RELATIVE ${binary_dir}
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"${target_dir}/Labels.json")
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list(APPEND gcda_files ${gfiles})
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list(APPEND label_files ${lfiles})
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endif()
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endforeach()
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endif()
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# return early if no coverage files were found
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list(LENGTH gcda_files len)
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if(len EQUAL 0)
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if (NOT GCOV_QUIET)
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message("ctest_coverage_collect_gcov: No .gcda files found, "
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"ignoring coverage request.")
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endif()
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return()
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endif()
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# setup the dir for the coverage files
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set(coverage_dir "${binary_dir}/Testing/CoverageInfo")
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file(MAKE_DIRECTORY "${coverage_dir}")
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# call gcov on each .gcda file
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foreach (gcda_file ${gcda_files})
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# get the directory of the gcda file
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get_filename_component(gcda_file ${binary_dir}/${gcda_file} ABSOLUTE)
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get_filename_component(gcov_dir ${gcda_file} DIRECTORY)
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# run gcov, this will produce the .gcov file in the current
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# working directory
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if(NOT DEFINED GCOV_GCOV_OPTIONS)
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set(GCOV_GCOV_OPTIONS -b)
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endif()
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execute_process(COMMAND
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${gcov_command} ${GCOV_GCOV_OPTIONS} -o ${gcov_dir} ${gcda_file}
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OUTPUT_VARIABLE out
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RESULT_VARIABLE res
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WORKING_DIRECTORY ${coverage_dir})
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if (GCOV_DELETE)
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file(REMOVE ${gcda_file})
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endif()
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endforeach()
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if(NOT "${res}" EQUAL 0)
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if (NOT GCOV_QUIET)
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message(STATUS "Error running gcov: ${res} ${out}")
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endif()
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endif()
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# create json file with project information
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file(WRITE ${coverage_dir}/data.json
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"{
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\"Source\": \"${source_dir}\",
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\"Binary\": \"${binary_dir}\"
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}")
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# collect the gcov files
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set(unfiltered_gcov_files)
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file(GLOB_RECURSE unfiltered_gcov_files RELATIVE ${binary_dir} "${coverage_dir}/*.gcov")
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# if CTEST_EXTRA_COVERAGE_GLOB was specified we search for files
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# that might be uncovered
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if (DEFINED CTEST_EXTRA_COVERAGE_GLOB)
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set(uncovered_files)
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foreach(search_entry IN LISTS CTEST_EXTRA_COVERAGE_GLOB)
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if(NOT GCOV_QUIET)
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message("Add coverage glob: ${search_entry}")
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endif()
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file(GLOB_RECURSE matching_files "${source_dir}/${search_entry}")
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if (matching_files)
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list(APPEND uncovered_files "${matching_files}")
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endif()
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endforeach()
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endif()
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set(gcov_files)
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foreach(gcov_file ${unfiltered_gcov_files})
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file(STRINGS ${binary_dir}/${gcov_file} first_line LIMIT_COUNT 1 ENCODING UTF-8)
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set(is_excluded false)
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if(first_line MATCHES "^ -: 0:Source:(.*)$")
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set(source_file ${CMAKE_MATCH_1})
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elseif(NOT GCOV_QUIET)
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message(STATUS "Could not determine source file corresponding to: ${gcov_file}")
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endif()
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foreach(exclude_entry IN LISTS CTEST_CUSTOM_COVERAGE_EXCLUDE)
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if(source_file MATCHES "${exclude_entry}")
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set(is_excluded true)
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if(NOT GCOV_QUIET)
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message("Excluding coverage for: ${source_file} which matches ${exclude_entry}")
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endif()
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break()
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endif()
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endforeach()
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get_filename_component(resolved_source_file "${source_file}" ABSOLUTE)
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foreach(uncovered_file IN LISTS uncovered_files)
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get_filename_component(resolved_uncovered_file "${uncovered_file}" ABSOLUTE)
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if (resolved_uncovered_file STREQUAL resolved_source_file)
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list(REMOVE_ITEM uncovered_files "${uncovered_file}")
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endif()
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endforeach()
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if(NOT is_excluded)
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list(APPEND gcov_files ${gcov_file})
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endif()
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endforeach()
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foreach (uncovered_file ${uncovered_files})
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# Check if this uncovered file should be excluded.
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set(is_excluded false)
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foreach(exclude_entry IN LISTS CTEST_CUSTOM_COVERAGE_EXCLUDE)
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if(uncovered_file MATCHES "${exclude_entry}")
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set(is_excluded true)
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if(NOT GCOV_QUIET)
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message("Excluding coverage for: ${uncovered_file} which matches ${exclude_entry}")
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endif()
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break()
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endif()
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endforeach()
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if(is_excluded)
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continue()
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endif()
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# Copy from source to binary dir, preserving any intermediate subdirectories.
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get_filename_component(filename "${uncovered_file}" NAME)
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get_filename_component(relative_path "${uncovered_file}" DIRECTORY)
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string(REPLACE "${source_dir}" "" relative_path "${relative_path}")
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if (relative_path)
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# Strip leading slash.
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string(SUBSTRING "${relative_path}" 1 -1 relative_path)
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endif()
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file(COPY ${uncovered_file} DESTINATION ${binary_dir}/uncovered/${relative_path})
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if(relative_path)
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list(APPEND uncovered_files_for_tar uncovered/${relative_path}/${filename})
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else()
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list(APPEND uncovered_files_for_tar uncovered/${filename})
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endif()
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endforeach()
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# tar up the coverage info with the same date so that the md5
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# sum will be the same for the tar file independent of file time
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# stamps
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string(REPLACE ";" "\n" gcov_files "${gcov_files}")
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string(REPLACE ";" "\n" label_files "${label_files}")
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string(REPLACE ";" "\n" uncovered_files_for_tar "${uncovered_files_for_tar}")
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file(WRITE "${coverage_dir}/coverage_file_list.txt"
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"${gcov_files}
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${coverage_dir}/data.json
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${label_files}
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${uncovered_files_for_tar}
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")
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if (GCOV_QUIET)
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set(tar_opts "cfj")
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else()
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set(tar_opts "cvfj")
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endif()
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execute_process(COMMAND
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${CMAKE_COMMAND} -E tar ${tar_opts} ${GCOV_TARBALL}
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"--mtime=1970-01-01 0:0:0 UTC"
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"--format=gnutar"
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--files-from=${coverage_dir}/coverage_file_list.txt
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WORKING_DIRECTORY ${binary_dir})
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if (GCOV_DELETE)
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foreach(gcov_file ${unfiltered_gcov_files})
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file(REMOVE ${binary_dir}/${gcov_file})
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endforeach()
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file(REMOVE ${coverage_dir}/coverage_file_list.txt)
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file(REMOVE ${coverage_dir}/data.json)
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if (EXISTS ${binary_dir}/uncovered)
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file(REMOVE ${binary_dir}/uncovered)
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endif()
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endif()
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endfunction()
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