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-# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
-# file Copyright.txt or https://cmake.org/licensing for details.
-
-#[=======================================================================[.rst:
-CTestCoverageCollectGCOV
-------------------------
-
-This module provides the ``ctest_coverage_collect_gcov`` function.
-
-This function runs gcov on all .gcda files found in the binary tree
-and packages the resulting .gcov files into a tar file.
-This tarball also contains the following:
-
-* *data.json* defines the source and build directories for use by CDash.
-* *Labels.json* indicates any :prop_sf:`LABELS` that have been set on the
- source files.
-* The *uncovered* directory holds any uncovered files found by
- :variable:`CTEST_EXTRA_COVERAGE_GLOB`.
-
-After generating this tar file, it can be sent to CDash for display with the
-:command:`ctest_submit(CDASH_UPLOAD)` command.
-
-.. command:: ctest_coverage_collect_gcov
-
- ::
-
- ctest_coverage_collect_gcov(TARBALL <tarfile>
- [SOURCE <source_dir>][BUILD <build_dir>]
- [GCOV_COMMAND <gcov_command>]
- [GCOV_OPTIONS <options>...]
- )
-
- Run gcov and package a tar file for CDash. The options are:
-
- ``TARBALL <tarfile>``
- Specify the location of the ``.tar`` file to be created for later
- upload to CDash. Relative paths will be interpreted with respect
- to the top-level build directory.
-
- ``TARBALL_COMPRESSION <option>`` Specify a compression algorithm for the
- ``TARBALL`` data file. Using this option reduces the size of the data file
- before it is submitted to CDash. ``<option>`` must be one of ``GZIP``,
- ``BZIP2``, ``XZ``, ``ZSTD``, ``FROM_EXT``, or an expression that CMake
- evaluates as ``FALSE``. The default value is ``BZIP2``.
-
- If ``FROM_EXT`` is specified, the resulting file will be compressed based on
- the file extension of the ``<tarfile>`` (i.e. ``.tar.gz`` will use ``GZIP``
- compression). File extensions that will produce compressed output include
- ``.tar.gz``, ``.tgz``, ``.tar.bzip2``, ``.tbz``, ``.tar.xz``, and ``.txz``.
-
- ``SOURCE <source_dir>``
- Specify the top-level source directory for the build.
- Default is the value of :variable:`CTEST_SOURCE_DIRECTORY`.
-
- ``BUILD <build_dir>``
- Specify the top-level build directory for the build.
- Default is the value of :variable:`CTEST_BINARY_DIRECTORY`.
-
- ``GCOV_COMMAND <gcov_command>``
- Specify the full path to the ``gcov`` command on the machine.
- Default is the value of :variable:`CTEST_COVERAGE_COMMAND`.
-
- ``GCOV_OPTIONS <options>...``
- Specify options to be passed to gcov. The ``gcov`` command
- is run as ``gcov <options>... -o <gcov-dir> <file>.gcda``.
- If not specified, the default option is just ``-b -x``.
-
- ``GLOB``
- Recursively search for .gcda files in build_dir rather than
- determining search locations by reading TargetDirectories.txt.
-
- ``DELETE``
- Delete coverage files after they've been packaged into the .tar.
-
- ``QUIET``
- Suppress non-error messages that otherwise would have been
- printed out by this function.
-#]=======================================================================]
-
-function(ctest_coverage_collect_gcov)
- set(options QUIET GLOB DELETE)
- set(oneValueArgs TARBALL SOURCE BUILD GCOV_COMMAND TARBALL_COMPRESSION)
- set(multiValueArgs GCOV_OPTIONS)
- cmake_parse_arguments(GCOV "${options}" "${oneValueArgs}"
- "${multiValueArgs}" "" ${ARGN} )
- if(NOT DEFINED GCOV_TARBALL)
- message(FATAL_ERROR
- "TARBALL must be specified. for ctest_coverage_collect_gcov")
- endif()
- if(NOT DEFINED GCOV_SOURCE)
- set(source_dir "${CTEST_SOURCE_DIRECTORY}")
- else()
- set(source_dir "${GCOV_SOURCE}")
- endif()
- if(NOT DEFINED GCOV_BUILD)
- set(binary_dir "${CTEST_BINARY_DIRECTORY}")
- else()
- set(binary_dir "${GCOV_BUILD}")
- endif()
- if(NOT DEFINED GCOV_GCOV_COMMAND)
- set(gcov_command "${CTEST_COVERAGE_COMMAND}")
- else()
- set(gcov_command "${GCOV_GCOV_COMMAND}")
- endif()
- if(NOT DEFINED GCOV_TARBALL_COMPRESSION)
- set(GCOV_TARBALL_COMPRESSION "BZIP2")
- elseif( GCOV_TARBALL_COMPRESSION AND
- NOT GCOV_TARBALL_COMPRESSION MATCHES "^(GZIP|BZIP2|XZ|ZSTD|FROM_EXT)$")
- message(FATAL_ERROR "TARBALL_COMPRESSION must be one of OFF, GZIP, "
- "BZIP2, XZ, ZSTD, or FROM_EXT for ctest_coverage_collect_gcov")
- endif()
- # run gcov on each gcda file in the binary tree
- set(gcda_files)
- set(label_files)
- if (GCOV_GLOB)
- file(GLOB_RECURSE gfiles "${binary_dir}/*.gcda")
- list(LENGTH gfiles len)
- # if we have gcda files then also grab the labels file for that target
- if(${len} GREATER 0)
- file(GLOB_RECURSE lfiles RELATIVE ${binary_dir} "${binary_dir}/Labels.json")
- list(APPEND gcda_files ${gfiles})
- list(APPEND label_files ${lfiles})
- endif()
- else()
- # look for gcda files in the target directories
- # this will be faster and only look where the files will be
- file(STRINGS "${binary_dir}/CMakeFiles/TargetDirectories.txt" target_dirs
- ENCODING UTF-8)
- foreach(target_dir ${target_dirs})
- file(GLOB_RECURSE gfiles "${target_dir}/*.gcda")
- list(LENGTH gfiles len)
- # if we have gcda files then also grab the labels file for that target
- if(${len} GREATER 0)
- file(GLOB_RECURSE lfiles RELATIVE ${binary_dir}
- "${target_dir}/Labels.json")
- list(APPEND gcda_files ${gfiles})
- list(APPEND label_files ${lfiles})
- endif()
- endforeach()
- endif()
- # return early if no coverage files were found
- list(LENGTH gcda_files len)
- if(len EQUAL 0)
- if (NOT GCOV_QUIET)
- message("ctest_coverage_collect_gcov: No .gcda files found, "
- "ignoring coverage request.")
- endif()
- return()
- endif()
- # setup the dir for the coverage files
- set(coverage_dir "${binary_dir}/Testing/CoverageInfo")
- file(MAKE_DIRECTORY "${coverage_dir}")
- # run gcov, this will produce the .gcov files in the current
- # working directory
- if(NOT DEFINED GCOV_GCOV_OPTIONS)
- set(GCOV_GCOV_OPTIONS -b -x)
- endif()
- if (GCOV_QUIET)
- set(coverage_out_opts
- OUTPUT_QUIET
- ERROR_QUIET
- )
- else()
- set(coverage_out_opts
- OUTPUT_FILE "${coverage_dir}/gcov.log"
- ERROR_FILE "${coverage_dir}/gcov.log"
- )
- endif()
- execute_process(COMMAND
- ${gcov_command} ${GCOV_GCOV_OPTIONS} ${gcda_files}
- RESULT_VARIABLE res
- WORKING_DIRECTORY ${coverage_dir}
- ${coverage_out_opts}
- )
-
- if (GCOV_DELETE)
- file(REMOVE ${gcda_files})
- endif()
-
- if(NOT "${res}" EQUAL 0)
- if (NOT GCOV_QUIET)
- message(STATUS "Error running gcov: ${res}, see\n ${coverage_dir}/gcov.log")
- endif()
- endif()
- # create json file with project information
- file(WRITE ${coverage_dir}/data.json
- "{
- \"Source\": \"${source_dir}\",
- \"Binary\": \"${binary_dir}\"
-}")
- # collect the gcov files
- set(unfiltered_gcov_files)
- file(GLOB_RECURSE unfiltered_gcov_files RELATIVE ${binary_dir} "${coverage_dir}/*.gcov")
-
- # if CTEST_EXTRA_COVERAGE_GLOB was specified we search for files
- # that might be uncovered
- if (DEFINED CTEST_EXTRA_COVERAGE_GLOB)
- set(uncovered_files)
- foreach(search_entry IN LISTS CTEST_EXTRA_COVERAGE_GLOB)
- if(NOT GCOV_QUIET)
- message("Add coverage glob: ${search_entry}")
- endif()
- file(GLOB_RECURSE matching_files "${source_dir}/${search_entry}")
- if (matching_files)
- list(APPEND uncovered_files "${matching_files}")
- endif()
- endforeach()
- endif()
-
- set(gcov_files)
- foreach(gcov_file ${unfiltered_gcov_files})
- file(STRINGS ${binary_dir}/${gcov_file} first_line LIMIT_COUNT 1 ENCODING UTF-8)
-
- set(is_excluded false)
- if(first_line MATCHES "^ -: 0:Source:(.*)$")
- set(source_file ${CMAKE_MATCH_1})
- elseif(NOT GCOV_QUIET)
- message(STATUS "Could not determine source file corresponding to: ${gcov_file}")
- endif()
-
- foreach(exclude_entry IN LISTS CTEST_CUSTOM_COVERAGE_EXCLUDE)
- if(source_file MATCHES "${exclude_entry}")
- set(is_excluded true)
-
- if(NOT GCOV_QUIET)
- message("Excluding coverage for: ${source_file} which matches ${exclude_entry}")
- endif()
-
- break()
- endif()
- endforeach()
-
- get_filename_component(resolved_source_file "${source_file}" ABSOLUTE)
- foreach(uncovered_file IN LISTS uncovered_files)
- get_filename_component(resolved_uncovered_file "${uncovered_file}" ABSOLUTE)
- if (resolved_uncovered_file STREQUAL resolved_source_file)
- list(REMOVE_ITEM uncovered_files "${uncovered_file}")
- endif()
- endforeach()
-
- if(NOT is_excluded)
- list(APPEND gcov_files ${gcov_file})
- endif()
- endforeach()
-
- foreach (uncovered_file ${uncovered_files})
- # Check if this uncovered file should be excluded.
- set(is_excluded false)
- foreach(exclude_entry IN LISTS CTEST_CUSTOM_COVERAGE_EXCLUDE)
- if(uncovered_file MATCHES "${exclude_entry}")
- set(is_excluded true)
- if(NOT GCOV_QUIET)
- message("Excluding coverage for: ${uncovered_file} which matches ${exclude_entry}")
- endif()
- break()
- endif()
- endforeach()
- if(is_excluded)
- continue()
- endif()
-
- # Copy from source to binary dir, preserving any intermediate subdirectories.
- get_filename_component(filename "${uncovered_file}" NAME)
- get_filename_component(relative_path "${uncovered_file}" DIRECTORY)
- string(REPLACE "${source_dir}" "" relative_path "${relative_path}")
- if (relative_path)
- # Strip leading slash.
- string(SUBSTRING "${relative_path}" 1 -1 relative_path)
- endif()
- file(COPY ${uncovered_file} DESTINATION ${binary_dir}/uncovered/${relative_path})
- if(relative_path)
- list(APPEND uncovered_files_for_tar uncovered/${relative_path}/${filename})
- else()
- list(APPEND uncovered_files_for_tar uncovered/${filename})
- endif()
- endforeach()
-
- # tar up the coverage info with the same date so that the md5
- # sum will be the same for the tar file independent of file time
- # stamps
- string(REPLACE ";" "\n" gcov_files "${gcov_files}")
- string(REPLACE ";" "\n" label_files "${label_files}")
- string(REPLACE ";" "\n" uncovered_files_for_tar "${uncovered_files_for_tar}")
- file(WRITE "${coverage_dir}/coverage_file_list.txt"
- "${gcov_files}
-${coverage_dir}/data.json
-${label_files}
-${uncovered_files_for_tar}
-")
-
- # Prepare tar command line arguments
-
- set(tar_opts "")
- # Select data compression mode
- if( GCOV_TARBALL_COMPRESSION STREQUAL "FROM_EXT")
- if( GCOV_TARBALL MATCHES [[\.(tgz|tar.gz)$]] )
- string(APPEND tar_opts "z")
- elseif( GCOV_TARBALL MATCHES [[\.(txz|tar.xz)$]] )
- string(APPEND tar_opts "J")
- elseif( GCOV_TARBALL MATCHES [[\.(tbz|tar.bz)$]] )
- string(APPEND tar_opts "j")
- endif()
- elseif(GCOV_TARBALL_COMPRESSION STREQUAL "GZIP")
- string(APPEND tar_opts "z")
- elseif(GCOV_TARBALL_COMPRESSION STREQUAL "XZ")
- string(APPEND tar_opts "J")
- elseif(GCOV_TARBALL_COMPRESSION STREQUAL "BZIP2")
- string(APPEND tar_opts "j")
- elseif(GCOV_TARBALL_COMPRESSION STREQUAL "ZSTD")
- set(zstd_tar_opt "--zstd")
- endif()
- # Verbosity options
- if(NOT GCOV_QUIET AND NOT tar_opts MATCHES v)
- string(APPEND tar_opts "v")
- endif()
- # Prepend option 'c' specifying 'create'
- string(PREPEND tar_opts "c")
- # Append option 'f' so that the next argument is the filename
- string(APPEND tar_opts "f")
-
- execute_process(COMMAND
- ${CMAKE_COMMAND} -E tar ${tar_opts} ${GCOV_TARBALL} ${zstd_tar_opt}
- "--mtime=1970-01-01 0:0:0 UTC"
- "--format=gnutar"
- --files-from=${coverage_dir}/coverage_file_list.txt
- WORKING_DIRECTORY ${binary_dir})
-
- if (GCOV_DELETE)
- foreach(gcov_file ${unfiltered_gcov_files})
- file(REMOVE ${binary_dir}/${gcov_file})
- endforeach()
- file(REMOVE ${coverage_dir}/coverage_file_list.txt)
- file(REMOVE ${coverage_dir}/data.json)
- if (EXISTS ${binary_dir}/uncovered)
- file(REMOVE ${binary_dir}/uncovered)
- endif()
- endif()
-
-endfunction()