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FairMQ/cmake/FairMQLib.cmake
Dennis Klein afadb2a078 Make find_package2 a bit smarter 
The VERSION arguments now supports multiple values and picks the highest
version from the given. The COMPONENTS argument now automatically
removes duplicates.
2019-07-19 14:45:27 +02:00

400 lines
15 KiB
CMake
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################################################################################
# Copyright (C) 2018 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH #
# #
# This software is distributed under the terms of the #
# GNU Lesser General Public Licence (LGPL) version 3, #
# copied verbatim in the file "LICENSE" #
################################################################################
### PUBLIC
# Defines some variables with console color escape sequences
if(NOT WIN32 AND NOT DISABLE_COLOR)
string(ASCII 27 Esc)
set(CR "${Esc}[m")
set(CB "${Esc}[1m")
set(Red "${Esc}[31m")
set(Green "${Esc}[32m")
set(Yellow "${Esc}[33m")
set(Blue "${Esc}[34m")
set(Magenta "${Esc}[35m")
set(Cyan "${Esc}[36m")
set(White "${Esc}[37m")
set(BRed "${Esc}[1;31m")
set(BGreen "${Esc}[1;32m")
set(BYellow "${Esc}[1;33m")
set(BBlue "${Esc}[1;34m")
set(BMagenta "${Esc}[1;35m")
set(BCyan "${Esc}[1;36m")
set(BWhite "${Esc}[1;37m")
endif()
find_package(Git)
# get_git_version([DEFAULT_VERSION version] [DEFAULT_DATE date] [OUTVAR_PREFIX prefix])
#
# Sets variables #prefix#_VERSION, #prefix#_GIT_VERSION, #prefix#_DATE, #prefix#_GIT_DATE
function(get_git_version)
cmake_parse_arguments(ARGS "" "DEFAULT_VERSION;DEFAULT_DATE;OUTVAR_PREFIX" "" ${ARGN})
if(NOT ARGS_OUTVAR_PREFIX)
set(ARGS_OUTVAR_PREFIX PROJECT)
endif()
if(GIT_FOUND AND EXISTS ${CMAKE_SOURCE_DIR}/.git)
execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --dirty --match "v*"
OUTPUT_VARIABLE ${ARGS_OUTVAR_PREFIX}_GIT_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
if(${ARGS_OUTVAR_PREFIX}_GIT_VERSION)
# cut first two characters "v-"
string(SUBSTRING ${${ARGS_OUTVAR_PREFIX}_GIT_VERSION} 1 -1 ${ARGS_OUTVAR_PREFIX}_GIT_VERSION)
endif()
execute_process(COMMAND ${GIT_EXECUTABLE} log -1 --format=%cd
OUTPUT_VARIABLE ${ARGS_OUTVAR_PREFIX}_GIT_DATE
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
endif()
if(NOT ${ARGS_OUTVAR_PREFIX}_GIT_VERSION)
if(ARGS_DEFAULT_VERSION)
set(${ARGS_OUTVAR_PREFIX}_GIT_VERSION ${ARGS_DEFAULT_VERSION})
else()
set(${ARGS_OUTVAR_PREFIX}_GIT_VERSION 0.0.0.0)
endif()
endif()
if(NOT ${ARGS_OUTVAR_PREFIX}_GIT_DATE)
if(ARGS_DEFAULT_DATE)
set(${ARGS_OUTVAR_PREFIX}_GIT_DATE ${ARGS_DEFAULT_DATE})
else()
set(${ARGS_OUTVAR_PREFIX}_GIT_DATE "Thu Jan 1 00:00:00 1970 +0000")
endif()
endif()
string(REGEX MATCH "^([^-]*)" blubb ${${ARGS_OUTVAR_PREFIX}_GIT_VERSION})
# return values
set(${ARGS_OUTVAR_PREFIX}_VERSION ${CMAKE_MATCH_0} PARENT_SCOPE)
set(${ARGS_OUTVAR_PREFIX}_DATE ${${ARGS_OUTVAR_PREFIX}_GIT_DATE} PARENT_SCOPE)
set(${ARGS_OUTVAR_PREFIX}_GIT_VERSION ${${ARGS_OUTVAR_PREFIX}_GIT_VERSION} PARENT_SCOPE)
set(${ARGS_OUTVAR_PREFIX}_GIT_DATE ${${ARGS_OUTVAR_PREFIX}_GIT_DATE} PARENT_SCOPE)
endfunction()
# Set defaults
macro(set_fairmq_defaults)
string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWER)
string(TOUPPER ${PROJECT_NAME} PROJECT_NAME_UPPER)
# Set a default build type
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE RelWithDebInfo)
endif()
# Handle C++ standard level
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD ${PROJECT_MIN_CXX_STANDARD})
elseif(${CMAKE_CXX_STANDARD} LESS ${PROJECT_MIN_CXX_STANDARD})
message(FATAL_ERROR "A minimum CMAKE_CXX_STANDARD of ${PROJECT_MIN_CXX_STANDARD} is required.")
endif()
set(CMAKE_CXX_EXTENSIONS OFF)
if(NOT BUILD_SHARED_LIBS)
set(BUILD_SHARED_LIBS ON CACHE BOOL "Whether to build shared libraries or static archives")
endif()
# Set -fPIC as default for all library types
if(NOT CMAKE_POSITION_INDEPENDENT_CODE)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
# Generate compile_commands.json file (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Define CMAKE_INSTALL_*DIR family of variables
include(GNUInstallDirs)
# Define install dirs
set(PROJECT_INSTALL_BINDIR ${CMAKE_INSTALL_BINDIR})
set(PROJECT_INSTALL_LIBDIR ${CMAKE_INSTALL_LIBDIR})
set(PROJECT_INSTALL_INCDIR ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME_LOWER})
set(PROJECT_INSTALL_DATADIR ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME_LOWER})
set(PROJECT_INSTALL_CMAKEMODDIR ${PROJECT_INSTALL_DATADIR}/cmake)
# https://cmake.org/Wiki/CMake_RPATH_handling
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}" isSystemDir)
if("${isSystemDir}" STREQUAL "-1")
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} "-Wl,--enable-new-dtags")
set(CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-Wl,--enable-new-dtags")
set(CMAKE_INSTALL_RPATH "$ORIGIN/../${PROJECT_INSTALL_LIBDIR}")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(CMAKE_INSTALL_RPATH "@loader_path/../${PROJECT_INSTALL_LIBDIR}")
else()
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${PROJECT_INSTALL_LIBDIR}")
endif()
endif()
# Define export set, only one for now
set(PROJECT_EXPORT_SET ${PROJECT_NAME}Targets)
# Configure build types
set(CMAKE_CONFIGURATION_TYPES "Debug" "Release" "RelWithDebInfo" "Nightly" "Profile" "Experimental" "AdressSan" "ThreadSan")
set(CMAKE_CXX_FLAGS_DEBUG "-g -Wshadow -Wall -Wextra")
set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -Wshadow -Wall -Wextra -DNDEBUG")
set(CMAKE_CXX_FLAGS_NIGHTLY "-O2 -g -Wshadow -Wall -Wextra")
set(CMAKE_CXX_FLAGS_PROFILE "-g3 -Wshadow -Wall -Wextra -fno-inline -ftest-coverage -fprofile-arcs")
set(CMAKE_CXX_FLAGS_EXPERIMENTAL "-O2 -g -Wshadow -Wall -Wextra -DNDEBUG")
set(CMAKE_CXX_FLAGS_ADRESSSAN "-O2 -g -Wshadow -Wall -Wextra -fsanitize=address -fno-omit-frame-pointer")
set(CMAKE_CXX_FLAGS_THREADSAN "-O2 -g -Wshadow -Wall -Wextra -fsanitize=thread")
if(CMAKE_GENERATOR STREQUAL "Ninja" AND
((CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9) OR
(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5)))
# Force colored warnings in Ninja's output, if the compiler has -fdiagnostics-color support.
# Rationale in https://github.com/ninja-build/ninja/issues/814
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always")
endif()
if(NOT PROJECT_VERSION_TWEAK)
set(PROJECT_VERSION_HOTFIX 0)
else()
set(PROJECT_VERSION_HOTFIX ${PROJECT_VERSION_TWEAK})
endif()
if(NOT DEFINED RUN_STATIC_ANALYSIS)
set(RUN_STATIC_ANALYSIS OFF)
endif()
unset(PROJECT_STATIC_ANALYSERS)
if(RUN_STATIC_ANALYSIS)
set(analyser "clang-tidy")
find_program(${analyser}_FOUND "${analyser}")
if(${analyser}_FOUND)
set(CMAKE_CXX_CLANG_TIDY "${${analyser}_FOUND}")
endif()
list(APPEND PROJECT_STATIC_ANALYSERS "${analyser}")
set(analyser "iwyu")
find_program(${analyser}_FOUND "${analyser}")
if(${analyser}_FOUND)
set(CMAKE_CXX_IWYU "${${analyser}_FOUND}")
endif()
list(APPEND PROJECT_STATIC_ANALYSERS "${analyser}")
set(analyser "cpplint")
find_program(${analyser}_FOUND "${analyser}")
if(${analyser}_FOUND)
set(CMAKE_CXX_CPPLINT "${${analyser}_FOUND}")
endif()
list(APPEND PROJECT_STATIC_ANALYSERS "${analyser}")
endif()
endmacro()
function(join VALUES GLUE OUTPUT)
string(REGEX REPLACE "([^\\]|^);" "\\1${GLUE}" _TMP_STR "${VALUES}")
string(REGEX REPLACE "[\\](.)" "\\1" _TMP_STR "${_TMP_STR}") #fixes escaping
set(${OUTPUT} "${_TMP_STR}" PARENT_SCOPE)
endfunction()
function(pad str width char out)
cmake_parse_arguments(ARGS "" "COLOR" "" ${ARGN})
string(LENGTH ${str} length)
if(ARGS_COLOR)
math(EXPR padding "${width}-(${length}-10*${ARGS_COLOR})")
else()
math(EXPR padding "${width}-${length}")
endif()
if(padding GREATER 0)
foreach(i RANGE ${padding})
set(str "${str}${char}")
endforeach()
endif()
set(${out} ${str} PARENT_SCOPE)
endfunction()
function(generate_package_dependencies)
join("${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES}" " " DEPS)
set(PACKAGE_DEPENDENCIES "\
####### Expanded from @PACKAGE_DEPENDENCIES@ by configure_package_config_file() #######
set(${PROJECT_NAME}_PACKAGE_DEPENDENCIES ${DEPS})
")
foreach(dep IN LISTS PROJECT_INTERFACE_PACKAGE_DEPENDENCIES)
join("${PROJECT_INTERFACE_${dep}_COMPONENTS}" " " COMPS)
if(COMPS)
string(CONCAT PACKAGE_DEPENDENCIES ${PACKAGE_DEPENDENCIES} "\
set(${PROJECT_NAME}_${dep}_COMPONENTS ${COMPS})
")
endif()
if(PROJECT_INTERFACE_${dep}_VERSION)
string(CONCAT PACKAGE_DEPENDENCIES ${PACKAGE_DEPENDENCIES} "\
set(${PROJECT_NAME}_${dep}_VERSION ${PROJECT_INTERFACE_${dep}_VERSION})
")
endif()
endforeach()
string(CONCAT PACKAGE_DEPENDENCIES ${PACKAGE_DEPENDENCIES} "\
#######################################################################################
")
set(PACKAGE_DEPENDENCIES ${PACKAGE_DEPENDENCIES} PARENT_SCOPE)
endfunction()
function(generate_package_components)
join("${PROJECT_PACKAGE_COMPONENTS}" " " COMPS)
set(PACKAGE_COMPONENTS "\
####### Expanded from @PACKAGE_COMPONENTS@ by configure_package_config_file() #########
set(${PROJECT_NAME}_PACKAGE_COMPONENTS ${COMPS})
")
foreach(comp IN LISTS PROJECT_PACKAGE_COMPONENTS)
string(CONCAT PACKAGE_COMPONENTS ${PACKAGE_COMPONENTS} "\
set(${PROJECT_NAME}_${comp}_FOUND TRUE)
")
endforeach()
string(CONCAT PACKAGE_COMPONENTS ${PACKAGE_COMPONENTS} "\
check_required_components(${PROJECT_NAME})
")
set(PACKAGE_COMPONENTS ${PACKAGE_COMPONENTS} PARENT_SCOPE)
endfunction()
# Configure/Install CMake package
macro(install_cmake_package)
list(SORT PROJECT_PACKAGE_DEPENDENCIES)
list(SORT PROJECT_INTERFACE_PACKAGE_DEPENDENCIES)
include(CMakePackageConfigHelpers)
set(PACKAGE_INSTALL_DESTINATION
${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}-${PROJECT_GIT_VERSION}
)
if(BUILD_FAIRMQ)
install(EXPORT ${PROJECT_EXPORT_SET}
NAMESPACE ${PROJECT_NAME}::
DESTINATION ${PACKAGE_INSTALL_DESTINATION}
EXPORT_LINK_INTERFACE_LIBRARIES
)
endif()
write_basic_package_version_file(
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
VERSION ${PROJECT_VERSION}
COMPATIBILITY AnyNewerVersion
)
generate_package_dependencies() # fills ${PACKAGE_DEPENDENCIES}
generate_package_components() # fills ${PACKAGE_COMPONENTS}
string(TOUPPER ${CMAKE_BUILD_TYPE} PROJECT_BUILD_TYPE_UPPER)
set(PROJECT_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${PROJECT_BUILD_TYPE_UPPER}})
configure_package_config_file(
${CMAKE_SOURCE_DIR}/cmake/${PROJECT_NAME}Config.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
INSTALL_DESTINATION ${PACKAGE_INSTALL_DESTINATION}
PATH_VARS CMAKE_INSTALL_PREFIX
)
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
DESTINATION ${PACKAGE_INSTALL_DESTINATION}
)
endmacro()
#
# find_package2(PRIVATE|PUBLIC|INTERFACE <pkgname>
# [VERSION <version>]
# [COMPONENTS <list of components>]
# [ADD_REQUIREMENTS_OF <list of dep_pgkname>]
# [any other option the native find_package supports]...)
#
# Wrapper around CMake's native find_package command to add some features and bookkeeping.
#
# The qualifier (PRIVATE|PUBLIC|INTERFACE) to the package to populate
# the variables PROJECT_[INTERFACE]_<pkgname>_([VERSION]|[COMPONENTS]|PACKAGE_DEPENDENCIES)
# accordingly. This bookkeeping information is used to print our dependency found summary
# table and to generate a part of our CMake package.
#
# When a dependending package is listed with ADD_REQUIREMENTS_OF the variables
# <dep_pkgname>_<pkgname>_VERSION|COMPONENTS are looked up to and added to the native
# VERSION (selected highest version) and COMPONENTS (deduplicated) args.
#
# COMPONENTS and VERSION args are then just passed to the native find_package.
#
macro(find_package2 qualifier pkgname)
cmake_parse_arguments(ARGS "" "VERSION" "COMPONENTS;ADD_REQUIREMENTS_OF" ${ARGN})
string(TOUPPER ${pkgname} pkgname_upper)
set(__old_cpp__ ${CMAKE_PREFIX_PATH})
set(CMAKE_PREFIX_PATH ${${pkgname_upper}_ROOT} $ENV{${pkgname_upper}_ROOT} ${CMAKE_PREFIX_PATH})
# build lists of required versions and components
unset(__required_versions__)
unset(__components__)
if(ARGS_VERSION)
list(APPEND __required_versions__ ${ARGS_VERSION})
endif()
if(ARGS_COMPONENTS)
list(APPEND __components__ ${ARGS_COMPONENTS})
endif()
if(ARGS_ADD_REQUIREMENTS_OF)
foreach(dep_pkgname IN LISTS ARGS_ADD_REQUIREMENTS_OF)
if(${dep_pkgname}_${pkgname}_VERSION)
list(APPEND __required_versions__ ${${dep_pkgname}_${pkgname}_VERSION})
endif()
if(${dep_pkgname}_${pkgname}_COMPONENTS)
list(APPEND __components__ ${${dep_pkgname}_${pkgname}_COMPONENTS})
endif()
endforeach()
endif()
# select highest required version
unset(__version__)
if(__required_versions__)
list(GET __required_versions__ 0 __version__)
foreach(v IN LISTS __required_versions__)
if(${v} VERSION_GREATER ${__version__})
set(__version__ ${v})
endif()
endforeach()
endif()
# deduplicate required component list
if(__components__)
list(REMOVE_DUPLICATES __components__)
endif()
# call native find_package
if(__components__)
find_package(${pkgname} ${__version__} QUIET COMPONENTS ${__components__} ${ARGS_UNPARSED_ARGUMENTS})
else()
find_package(${pkgname} ${__version__} QUIET ${ARGS_UNPARSED_ARGUMENTS})
endif()
if(${pkgname}_FOUND)
if(${qualifier} STREQUAL PRIVATE)
set(PROJECT_${pkgname}_VERSION ${__version__})
set(PROJECT_${pkgname}_COMPONENTS ${__components__})
set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
elseif(${qualifier} STREQUAL PUBLIC)
set(PROJECT_${pkgname}_VERSION ${__version__})
set(PROJECT_${pkgname}_COMPONENTS ${__components__})
set(PROJECT_PACKAGE_DEPENDENCIES ${PROJECT_PACKAGE_DEPENDENCIES} ${pkgname})
set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${__components__})
set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
elseif(${qualifier} STREQUAL INTERFACE)
set(PROJECT_INTERFACE_${pkgname}_VERSION ${__version__})
set(PROJECT_INTERFACE_${pkgname}_COMPONENTS ${__components__})
set(PROJECT_INTERFACE_PACKAGE_DEPENDENCIES ${PROJECT_INTERFACE_PACKAGE_DEPENDENCIES} ${pkgname})
endif()
endif()
unset(__version__)
unset(__components__)
unset(__required_versions__)
set(CMAKE_PREFIX_PATH ${__old_cpp__})
unset(__old_cpp__)
endmacro()
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