evmc/CableBuildInfo.cmake

89 lines
2.9 KiB
CMake

# Cable: CMake Bootstrap Library.
# Copyright 2018 Pawel Bylica.
# Licensed under the Apache License, Version 2.0. See the LICENSE file.
if(cable_build_info_included)
return()
endif()
set(cable_build_info_included TRUE)
set(cable_buildinfo_template_dir ${CMAKE_CURRENT_LIST_DIR}/buildinfo)
function(cable_add_buildinfo_library)
cmake_parse_arguments("" "" PROJECT_NAME "" ${ARGN})
if(NOT _PROJECT_NAME)
message(FATAL_ERROR "The PROJECT_NAME argument missing")
endif()
# Come up with the target and the C function names.
set(name ${_PROJECT_NAME}-buildinfo)
set(FUNCTION_NAME ${_PROJECT_NAME}_get_buildinfo)
set(output_dir ${CMAKE_CURRENT_BINARY_DIR}/${_PROJECT_NAME})
set(header_file ${output_dir}/buildinfo.h)
set(source_file ${output_dir}/buildinfo.c)
if(CMAKE_CONFIGURATION_TYPES)
set(build_type ${CMAKE_CFG_INTDIR})
else()
set(build_type ${CMAKE_BUILD_TYPE})
endif()
# Find git here to allow the user to provide hints.
find_package(Git)
# Git info target.
#
# This target is named <name>-git and is always built.
# The executed script gitinfo.cmake check git status and updates files
# containing git information if anything has changed.
add_custom_target(
${name}-git
COMMAND ${CMAKE_COMMAND}
-DGIT=${GIT_EXECUTABLE}
-DSOURCE_DIR=${PROJECT_SOURCE_DIR}
-DOUTPUT_DIR=${output_dir}
-P ${cable_buildinfo_template_dir}/gitinfo.cmake
BYPRODUCTS ${output_dir}/gitinfo.txt
)
add_custom_command(
COMMENT "Updating ${name}:"
OUTPUT ${source_file}
COMMAND ${CMAKE_COMMAND}
-DOUTPUT_DIR=${output_dir}
-DPROJECT_NAME=${_PROJECT_NAME}
-DFUNCTION_NAME=${FUNCTION_NAME}
-DPROJECT_VERSION=${PROJECT_VERSION}
-DSYSTEM_NAME=${CMAKE_SYSTEM_NAME}
-DSYSTEM_PROCESSOR=${CMAKE_SYSTEM_PROCESSOR}
-DCOMPILER_ID=${CMAKE_CXX_COMPILER_ID}
-DCOMPILER_VERSION=${CMAKE_CXX_COMPILER_VERSION}
-DBUILD_TYPE=${build_type}
-P ${cable_buildinfo_template_dir}/buildinfo.cmake
DEPENDS
${cable_buildinfo_template_dir}/buildinfo.cmake
${cable_buildinfo_template_dir}/buildinfo.c.in
${name}-git
${output_dir}/gitinfo.txt
)
string(TIMESTAMP TIMESTAMP)
configure_file(${cable_buildinfo_template_dir}/buildinfo.h.in ${header_file})
# Add buildinfo library under given name.
# Make is static and do not build by default until some other target will actually use it.
add_library(${name} STATIC EXCLUDE_FROM_ALL ${source_file} ${header_file})
target_include_directories(${name} PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
set_target_properties(
${name} PROPERTIES
LIBRARY_OUTPUT_DIRECTORY ${output_dir}
ARCHIVE_OUTPUT_DIRECTORY ${output_dir}
OUTPUT_NAME buildinfo
)
endfunction()