381 lines
13 KiB
CMake
381 lines
13 KiB
CMake
#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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# Copyright (C) 2014 Joakim Söderberg <joakim.soderberg@gmail.com>
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#
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# This is intended to be run by a custom target in a CMake project like this.
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# 0. Compile program with coverage support.
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# 1. Clear coverage data. (Recursively delete *.gcda in build dir)
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# 2. Run the unit tests.
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# 3. Run this script specifying which source files the coverage should be performed on.
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#
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# This script will then use gcov to generate .gcov files in the directory specified
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# via the COV_PATH var. This should probably be the same as your cmake build dir.
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#
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# It then parses the .gcov files to convert them into the Coveralls JSON format:
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# https://coveralls.io/docs/api
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#
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# Example for running as standalone CMake script from the command line:
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# (Note it is important the -P is at the end...)
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# $ cmake -DCOV_PATH=$(pwd)
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# -DCOVERAGE_SRCS="catcierge_rfid.c;catcierge_timer.c"
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# -P ../cmake/CoverallsGcovUpload.cmake
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#
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CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
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#
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# Make sure we have the needed arguments.
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#
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if (NOT COVERALLS_OUTPUT_FILE)
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message(FATAL_ERROR "Coveralls: No coveralls output file specified. Please set COVERALLS_OUTPUT_FILE")
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endif()
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if (NOT COV_PATH)
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message(FATAL_ERROR "Coveralls: Missing coverage directory path where gcov files will be generated. Please set COV_PATH")
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endif()
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if (NOT COVERAGE_SRCS)
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message(FATAL_ERROR "Coveralls: Missing the list of source files that we should get the coverage data for COVERAGE_SRCS")
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endif()
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if (NOT PROJECT_ROOT)
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message(FATAL_ERROR "Coveralls: Missing PROJECT_ROOT.")
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endif()
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# Since it's not possible to pass a CMake list properly in the
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# "1;2;3" format to an external process, we have replaced the
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# ";" with "*", so reverse that here so we get it back into the
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# CMake list format.
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string(REGEX REPLACE "\\*" ";" COVERAGE_SRCS ${COVERAGE_SRCS})
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find_program(GCOV_EXECUTABLE gcov)
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if (NOT GCOV_EXECUTABLE)
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message(FATAL_ERROR "gcov not found! Aborting...")
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endif()
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find_package(Git)
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# TODO: Add these git things to the coveralls json.
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if (GIT_FOUND)
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# Branch.
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execute_process(
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COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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OUTPUT_VARIABLE GIT_BRANCH
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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macro (git_log_format FORMAT_CHARS VAR_NAME)
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execute_process(
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COMMAND ${GIT_EXECUTABLE} log -1 --pretty=format:%${FORMAT_CHARS}
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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OUTPUT_VARIABLE ${VAR_NAME}
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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endmacro()
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git_log_format(an GIT_AUTHOR_EMAIL)
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git_log_format(ae GIT_AUTHOR_EMAIL)
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git_log_format(cn GIT_COMMITTER_NAME)
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git_log_format(ce GIT_COMMITTER_EMAIL)
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git_log_format(B GIT_COMMIT_MESSAGE)
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message("Git exe: ${GIT_EXECUTABLE}")
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message("Git branch: ${GIT_BRANCH}")
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message("Git author: ${GIT_AUTHOR_NAME}")
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message("Git e-mail: ${GIT_AUTHOR_EMAIL}")
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message("Git committer name: ${GIT_COMMITTER_NAME}")
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message("Git committer e-mail: ${GIT_COMMITTER_EMAIL}")
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message("Git commit message: ${GIT_COMMIT_MESSAGE}")
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endif()
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############################# Macros #########################################
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#
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# This macro converts from the full path format gcov outputs:
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#
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# /path/to/project/root/build/#path#to#project#root#subdir#the_file.c.gcov
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#
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# to the original source file path the .gcov is for:
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#
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# /path/to/project/root/subdir/the_file.c
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#
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macro(get_source_path_from_gcov_filename _SRC_FILENAME _GCOV_FILENAME)
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# /path/to/project/root/build/#path#to#project#root#subdir#the_file.c.gcov
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# ->
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# #path#to#project#root#subdir#the_file.c.gcov
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get_filename_component(_GCOV_FILENAME_WEXT ${_GCOV_FILENAME} NAME)
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# #path#to#project#root#subdir#the_file.c.gcov -> /path/to/project/root/subdir/the_file.c
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string(REGEX REPLACE "\\.gcov$" "" SRC_FILENAME_TMP ${_GCOV_FILENAME_WEXT})
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string(REGEX REPLACE "\#" "/" SRC_FILENAME_TMP ${SRC_FILENAME_TMP})
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set(${_SRC_FILENAME} "${SRC_FILENAME_TMP}")
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endmacro()
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##############################################################################
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# Get the coverage data.
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file(GLOB_RECURSE GCDA_FILES "${COV_PATH}/*.gcda")
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message("GCDA files:")
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# Get a list of all the object directories needed by gcov
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# (The directories the .gcda files and .o files are found in)
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# and run gcov on those.
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foreach(GCDA ${GCDA_FILES})
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message("Process: ${GCDA}")
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message("------------------------------------------------------------------------------")
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get_filename_component(GCDA_DIR ${GCDA} PATH)
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#
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# The -p below refers to "Preserve path components",
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# This means that the generated gcov filename of a source file will
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# keep the original files entire filepath, but / is replaced with #.
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# Example:
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#
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# /path/to/project/root/build/CMakeFiles/the_file.dir/subdir/the_file.c.gcda
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# ------------------------------------------------------------------------------
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# File '/path/to/project/root/subdir/the_file.c'
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# Lines executed:68.34% of 199
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# /path/to/project/root/subdir/the_file.c:creating '#path#to#project#root#subdir#the_file.c.gcov'
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#
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# If -p is not specified then the file is named only "the_file.c.gcov"
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#
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execute_process(
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COMMAND ${GCOV_EXECUTABLE} -p -o ${GCDA_DIR} ${GCDA}
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WORKING_DIRECTORY ${COV_PATH}
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)
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endforeach()
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# TODO: Make these be absolute path
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file(GLOB ALL_GCOV_FILES ${COV_PATH}/*.gcov)
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# Get only the filenames to use for filtering.
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#set(COVERAGE_SRCS_NAMES "")
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#foreach (COVSRC ${COVERAGE_SRCS})
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# get_filename_component(COVSRC_NAME ${COVSRC} NAME)
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# message("${COVSRC} -> ${COVSRC_NAME}")
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# list(APPEND COVERAGE_SRCS_NAMES "${COVSRC_NAME}")
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#endforeach()
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#
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# Filter out all but the gcov files we want.
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#
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# We do this by comparing the list of COVERAGE_SRCS filepaths that the
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# user wants the coverage data for with the paths of the generated .gcov files,
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# so that we only keep the relevant gcov files.
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#
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# Example:
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# COVERAGE_SRCS =
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# /path/to/project/root/subdir/the_file.c
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#
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# ALL_GCOV_FILES =
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# /path/to/project/root/build/#path#to#project#root#subdir#the_file.c.gcov
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# /path/to/project/root/build/#path#to#project#root#subdir#other_file.c.gcov
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#
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# Result should be:
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# GCOV_FILES =
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# /path/to/project/root/build/#path#to#project#root#subdir#the_file.c.gcov
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#
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set(GCOV_FILES "")
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#message("Look in coverage sources: ${COVERAGE_SRCS}")
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message("\nFilter out unwanted GCOV files:")
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message("===============================")
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set(COVERAGE_SRCS_REMAINING ${COVERAGE_SRCS})
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foreach (GCOV_FILE ${ALL_GCOV_FILES})
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#
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# /path/to/project/root/build/#path#to#project#root#subdir#the_file.c.gcov
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# ->
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# /path/to/project/root/subdir/the_file.c
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get_source_path_from_gcov_filename(GCOV_SRC_PATH ${GCOV_FILE})
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# Is this in the list of source files?
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# TODO: We want to match against relative path filenames from the source file root...
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list(FIND COVERAGE_SRCS ${GCOV_SRC_PATH} WAS_FOUND)
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if (NOT WAS_FOUND EQUAL -1)
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message("YES: ${GCOV_FILE}")
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list(APPEND GCOV_FILES ${GCOV_FILE})
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# We remove it from the list, so we don't bother searching for it again.
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# Also files left in COVERAGE_SRCS_REMAINING after this loop ends should
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# have coverage data generated from them (no lines are covered).
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list(REMOVE_ITEM COVERAGE_SRCS_REMAINING ${GCOV_SRC_PATH})
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else()
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message("NO: ${GCOV_FILE}")
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endif()
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endforeach()
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# TODO: Enable setting these
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set(JSON_SERVICE_NAME "travis-ci")
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set(JSON_SERVICE_JOB_ID $ENV{TRAVIS_JOB_ID})
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set(JSON_TEMPLATE
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"{
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\"service_name\": \"\@JSON_SERVICE_NAME\@\",
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\"service_job_id\": \"\@JSON_SERVICE_JOB_ID\@\",
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\"source_files\": \@JSON_GCOV_FILES\@
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}"
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)
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set(SRC_FILE_TEMPLATE
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"{
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\"name\": \"\@GCOV_SRC_REL_PATH\@\",
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\"source\": \"\@GCOV_FILE_SOURCE\@\",
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\"coverage\": \@GCOV_FILE_COVERAGE\@
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}"
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)
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message("\nGenerate JSON for files:")
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message("=========================")
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set(JSON_GCOV_FILES "[")
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# Read the GCOV files line by line and get the coverage data.
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foreach (GCOV_FILE ${GCOV_FILES})
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get_source_path_from_gcov_filename(GCOV_SRC_PATH ${GCOV_FILE})
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file(RELATIVE_PATH GCOV_SRC_REL_PATH "${PROJECT_ROOT}" "${GCOV_SRC_PATH}")
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# Loads the gcov file as a list of lines.
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file(STRINGS ${GCOV_FILE} GCOV_LINES)
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# Instead of trying to parse the source from the
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# gcov file, simply read the file contents from the source file.
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# (Parsing it from the gcov is hard because C-code uses ; in many places
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# which also happens to be the same as the CMake list delimiter).
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file(READ ${GCOV_SRC_PATH} GCOV_FILE_SOURCE)
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string(REPLACE "\\" "\\\\" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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string(REGEX REPLACE "\"" "\\\\\"" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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string(REPLACE "\t" "\\\\t" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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string(REPLACE "\r" "\\\\r" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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string(REPLACE "\n" "\\\\n" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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# According to http://json.org/ these should be escaped as well.
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# Don't know how to do that in CMake however...
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#string(REPLACE "\b" "\\\\b" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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#string(REPLACE "\f" "\\\\f" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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#string(REGEX REPLACE "\u([a-fA-F0-9]{4})" "\\\\u\\1" GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}")
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# We want a json array of coverage data as a single string
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# start building them from the contents of the .gcov
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set(GCOV_FILE_COVERAGE "[")
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foreach (GCOV_LINE ${GCOV_LINES})
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# Example of what we're parsing:
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# Hitcount |Line | Source
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# " 8: 26: if (!allowed || (strlen(allowed) == 0))"
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string(REGEX REPLACE
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"^([^:]*):([^:]*):(.*)$"
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"\\1;\\2;\\3"
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RES
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"${GCOV_LINE}")
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list(LENGTH RES RES_COUNT)
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if (RES_COUNT GREATER 2)
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list(GET RES 0 HITCOUNT)
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list(GET RES 1 LINE)
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list(GET RES 2 SOURCE)
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string(STRIP ${HITCOUNT} HITCOUNT)
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string(STRIP ${LINE} LINE)
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# Lines with 0 line numbers are metadata and can be ignored.
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if (NOT ${LINE} EQUAL 0)
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# Translate the hitcount into valid JSON values.
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if (${HITCOUNT} STREQUAL "#####")
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}0, ")
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elseif (${HITCOUNT} STREQUAL "-")
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}null, ")
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else()
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}${HITCOUNT}, ")
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endif()
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# TODO: Look for LCOV_EXCL_LINE in SOURCE to get rid of false positives.
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endif()
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else()
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message(WARNING "Failed to properly parse line --> ${GCOV_LINE}")
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endif()
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endforeach()
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# Advanced way of removing the trailing comma in the JSON array.
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# "[1, 2, 3, " -> "[1, 2, 3"
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string(REGEX REPLACE ",[ ]*$" "" GCOV_FILE_COVERAGE ${GCOV_FILE_COVERAGE})
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# Append the trailing ] to complete the JSON array.
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}]")
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# Generate the final JSON for this file.
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message("Generate JSON for file: ${GCOV_SRC_REL_PATH}...")
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string(CONFIGURE ${SRC_FILE_TEMPLATE} FILE_JSON)
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set(JSON_GCOV_FILES "${JSON_GCOV_FILES}${FILE_JSON}, ")
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endforeach()
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# Loop through all files we couldn't find any coverage for
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# as well, and generate JSON for those as well with 0% coverage.
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foreach(NOT_COVERED_SRC ${COVERAGE_SRCS_REMAINING})
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# Loads the source file as a list of lines.
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file(STRINGS ${NOT_COVERED_SRC} SRC_LINES)
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set(GCOV_FILE_COVERAGE "[")
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set(GCOV_FILE_SOURCE "")
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foreach (SOURCE ${SRC_LINES})
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}0, ")
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string(REPLACE "\\" "\\\\" SOURCE "${SOURCE}")
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string(REGEX REPLACE "\"" "\\\\\"" SOURCE "${SOURCE}")
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string(REPLACE "\t" "\\\\t" SOURCE "${SOURCE}")
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string(REPLACE "\r" "\\\\r" SOURCE "${SOURCE}")
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set(GCOV_FILE_SOURCE "${GCOV_FILE_SOURCE}${SOURCE}\\n")
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endforeach()
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# Remove trailing comma, and complete JSON array with ]
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string(REGEX REPLACE ",[ ]*$" "" GCOV_FILE_COVERAGE ${GCOV_FILE_COVERAGE})
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set(GCOV_FILE_COVERAGE "${GCOV_FILE_COVERAGE}]")
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# Generate the final JSON for this file.
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message("Generate JSON for non-gcov file: ${NOT_COVERED_SRC}...")
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string(CONFIGURE ${SRC_FILE_TEMPLATE} FILE_JSON)
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set(JSON_GCOV_FILES "${JSON_GCOV_FILES}${FILE_JSON}, ")
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endforeach()
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# Get rid of trailing comma.
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string(REGEX REPLACE ",[ ]*$" "" JSON_GCOV_FILES ${JSON_GCOV_FILES})
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set(JSON_GCOV_FILES "${JSON_GCOV_FILES}]")
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# Generate the final complete JSON!
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message("Generate final JSON...")
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string(CONFIGURE ${JSON_TEMPLATE} JSON)
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file(WRITE "${COVERALLS_OUTPUT_FILE}" "${JSON}")
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message("###########################################################################")
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message("Generated coveralls JSON containing coverage data:")
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message("${COVERALLS_OUTPUT_FILE}")
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message("###########################################################################")
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