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353 lines
12 KiB
353 lines
12 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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CTestCoverageCollectGCOV
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------------------------
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.. versionadded:: 3.2
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This module provides the ``ctest_coverage_collect_gcov`` function.
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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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* *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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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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.. command:: ctest_coverage_collect_gcov
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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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Run gcov and package a tar file for CDash. The options are:
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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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``TARBALL_COMPRESSION <option>``
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.. versionadded:: 3.18
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Specify a compression algorithm for the
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``TARBALL`` data file. Using this option reduces the size of the data file
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before it is submitted to CDash. ``<option>`` must be one of ``GZIP``,
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``BZIP2``, ``XZ``, ``ZSTD``, ``FROM_EXT``, or an expression that CMake
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evaluates as ``FALSE``. The default value is ``BZIP2``.
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If ``FROM_EXT`` is specified, the resulting file will be compressed based on
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the file extension of the ``<tarfile>`` (i.e. ``.tar.gz`` will use ``GZIP``
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compression). File extensions that will produce compressed output include
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``.tar.gz``, ``.tgz``, ``.tar.bzip2``, ``.tbz``, ``.tar.xz``, and ``.txz``.
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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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``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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``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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``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 -x``.
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``GLOB``
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.. versionadded:: 3.6
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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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``DELETE``
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.. versionadded:: 3.6
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Delete coverage files after they've been packaged into the .tar.
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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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.. versionadded:: 3.3
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Added support for the :variable:`CTEST_CUSTOM_COVERAGE_EXCLUDE` variable.
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#]=======================================================================]
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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 TARBALL_COMPRESSION)
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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 "${GCOV_GCOV_COMMAND}")
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endif()
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if(NOT DEFINED GCOV_TARBALL_COMPRESSION)
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set(GCOV_TARBALL_COMPRESSION "BZIP2")
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elseif( GCOV_TARBALL_COMPRESSION AND
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NOT GCOV_TARBALL_COMPRESSION MATCHES "^(GZIP|BZIP2|XZ|ZSTD|FROM_EXT)$")
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message(FATAL_ERROR "TARBALL_COMPRESSION must be one of OFF, GZIP, "
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"BZIP2, XZ, ZSTD, or FROM_EXT for ctest_coverage_collect_gcov")
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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 "${binary_dir}/*.gcda")
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list(LENGTH gfiles len)
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# if we have gcda files then also grab the labels file for that target
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if(${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 ${target_dirs})
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file(GLOB_RECURSE gfiles "${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 "${coverage_dir}")
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# run gcov, this will produce the .gcov files in the current
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# working directory
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if(NOT DEFINED GCOV_GCOV_OPTIONS)
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set(GCOV_GCOV_OPTIONS -b -x)
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endif()
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if (GCOV_QUIET)
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set(coverage_out_opts
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OUTPUT_QUIET
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ERROR_QUIET
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)
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else()
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set(coverage_out_opts
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OUTPUT_FILE "${coverage_dir}/gcov.log"
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ERROR_FILE "${coverage_dir}/gcov.log"
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)
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endif()
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execute_process(COMMAND
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${gcov_command} ${GCOV_GCOV_OPTIONS} ${gcda_files}
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RESULT_VARIABLE res
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WORKING_DIRECTORY ${coverage_dir}
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${coverage_out_opts}
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)
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if (GCOV_DELETE)
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file(REMOVE ${gcda_files})
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endif()
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if(NOT "${res}" EQUAL 0)
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if (NOT GCOV_QUIET)
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message(STATUS "Error running gcov: ${res}, see\n ${coverage_dir}/gcov.log")
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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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${uncovered_files_for_tar}
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")
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# Prepare tar command line arguments
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set(tar_opts "")
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# Select data compression mode
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if( GCOV_TARBALL_COMPRESSION STREQUAL "FROM_EXT")
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if( GCOV_TARBALL MATCHES [[\.(tgz|tar.gz)$]] )
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string(APPEND tar_opts "z")
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elseif( GCOV_TARBALL MATCHES [[\.(txz|tar.xz)$]] )
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string(APPEND tar_opts "J")
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elseif( GCOV_TARBALL MATCHES [[\.(tbz|tar.bz)$]] )
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string(APPEND tar_opts "j")
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endif()
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elseif(GCOV_TARBALL_COMPRESSION STREQUAL "GZIP")
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string(APPEND tar_opts "z")
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elseif(GCOV_TARBALL_COMPRESSION STREQUAL "XZ")
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string(APPEND tar_opts "J")
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elseif(GCOV_TARBALL_COMPRESSION STREQUAL "BZIP2")
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string(APPEND tar_opts "j")
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elseif(GCOV_TARBALL_COMPRESSION STREQUAL "ZSTD")
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set(zstd_tar_opt "--zstd")
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endif()
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# Verbosity options
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if(NOT GCOV_QUIET AND NOT tar_opts MATCHES v)
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string(APPEND tar_opts "v")
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endif()
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# Prepend option 'c' specifying 'create'
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string(PREPEND tar_opts "c")
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# Append option 'f' so that the next argument is the filename
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string(APPEND tar_opts "f")
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execute_process(COMMAND
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${CMAKE_COMMAND} -E tar ${tar_opts} ${GCOV_TARBALL} ${zstd_tar_opt}
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"--mtime=1970-01-01 0:0:0 UTC"
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"--format=gnutar"
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--files-from=${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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