86 lines
3.5 KiB
CMake
86 lines
3.5 KiB
CMake
include_guard(GLOBAL)
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function(myx_cmake_generate_git_info_header)
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set(_filename ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR}/${MYX_CMAKE_PROJECT_NAME_LOWER}/myx_cmake_git_info_p.hpp)
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if(MYX_CMAKE_GENERATED_HEADERS_PATH)
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set(_filename ${MYX_CMAKE_GENERATED_HEADERS_PATH}/${MYX_CMAKE_PROJECT_NAME_LOWER}/myx_cmake_git_info_p.hpp)
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elseif(ARGV0)
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set(_filename ${ARGV0})
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endif()
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set(_git_info_hpp_in
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"#ifndef @MYX_CMAKE_PROJECT_NAME_UPPER@_MYX_CMAKE_GIT_INFO_HPP_
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#define @MYX_CMAKE_PROJECT_NAME_UPPER@_MYX_CMAKE_GIT_INFO_HPP_
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#pragma once
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#if defined (@MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_REV)
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#error \"Duplicate definition of macros @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_REV\"
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#else
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#define @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_REV \"@MYX_CMAKE_GIT_REV@\"
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#endif
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#if defined (@MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_DIFF)
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#error \"Duplicate definition of macros @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_DIFF\"
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#else
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#define @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_DIFF \"@MYX_CMAKE_GIT_DIFF@\"
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#endif
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#if defined (@MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_BRANCH)
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#error \"Duplicate definition of macros @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_BRANCH\"
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#else
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#define @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_BRANCH \"@MYX_CMAKE_GIT_BRANCH@\"
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#endif
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#if defined (@MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_TAG)
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#error \"Duplicate definition of macros @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_TAG\"
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#else
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#define @MYX_CMAKE_PROJECT_NAME_UPPER@_GIT_TAG \"@MYX_CMAKE_GIT_TAG@\"
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#endif
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#endif /* @MYX_CMAKE_PROJECT_NAME_UPPER@_MYX_CMAKE_GIT_INFO_HPP_ */
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")
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set(_git_info_hpp_in_path ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/myx_cmake_git_info_p.hpp.in)
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file(WRITE ${_git_info_hpp_in_path} ${_git_info_hpp_in})
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set(_git_info_cmake_in
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"set(MYX_CMAKE_GIT_REV \"N/A\")
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set(MYX_CMAKE_GIT_DIFF \"\")
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set(MYX_CMAKE_GIT_TAG \"N/A\")
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set(MYX_CMAKE_GIT_BRANCH \"N/A\")
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find_program(GIT_EXECUTABLE git)
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if(GIT_EXECUTABLE)
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execute_process(COMMAND git log --pretty=format:'%h' -n 1 OUTPUT_VARIABLE MYX_CMAKE_GIT_REV ERROR_QUIET)
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# Check whether we got any revision (which isn't always the case,
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# e.g. when someone downloaded a zip file from Github instead of a checkout)
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if(NOT \"\${MYX_CMAKE_GIT_REV}\" STREQUAL \"\")
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execute_process(COMMAND bash -c \"git diff --quiet --exit-code || echo +\" OUTPUT_VARIABLE MYX_CMAKE_GIT_DIFF)
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execute_process(COMMAND git describe --exact-match --tags OUTPUT_VARIABLE MYX_CMAKE_GIT_TAG ERROR_QUIET)
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execute_process(COMMAND git rev-parse --abbrev-ref HEAD OUTPUT_VARIABLE MYX_CMAKE_GIT_BRANCH)
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string(STRIP \"\${MYX_CMAKE_GIT_REV}\" MYX_CMAKE_GIT_REV)
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string(SUBSTRING \"\${MYX_CMAKE_GIT_REV}\" 1 7 MYX_CMAKE_GIT_REV)
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string(STRIP \"\${MYX_CMAKE_GIT_DIFF}\" MYX_CMAKE_GIT_DIFF)
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string(STRIP \"\${MYX_CMAKE_GIT_TAG}\" MYX_CMAKE_GIT_TAG)
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string(STRIP \"\${MYX_CMAKE_GIT_BRANCH}\" MYX_CMAKE_GIT_BRANCH)
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endif()
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endif()
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configure_file(${_git_info_hpp_in_path} \"\${MYX_CMAKE_GIT_INFO_FILE}\")
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")
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set(_git_info_cmake_in_path ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/MyxCMakeGitInfo.cmake.in)
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file(WRITE ${_git_info_cmake_in_path} ${_git_info_cmake_in})
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# cmake-format: off
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if(NOT TARGET myx-cmake-git-info-header-${MYX_CMAKE_PROJECT_NAME_LOWER})
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add_custom_target(myx-cmake-git-info-header-${MYX_CMAKE_PROJECT_NAME_LOWER} ALL
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${CMAKE_COMMAND} -DMYX_CMAKE_PROJECT_NAME_UPPER=${MYX_CMAKE_PROJECT_NAME_UPPER}
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-DMYX_CMAKE_GIT_INFO_FILE=${_filename} -P ${_git_info_cmake_in_path}
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
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endif()
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# cmake-format: on
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endfunction()
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