107 lines
3.8 KiB
CMake
107 lines
3.8 KiB
CMake
#[=======================================================================[.rst:
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myx_generate_git_info_header
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----------------------------------
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Вспомогательная функция для автоматической генерации заголовочного
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файла, содержащего информацию о текущем состоянии репозитория git::
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myx_generate_git_info_header(TARGET BASE_FILENAME
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[ PREFIX prefix ] )
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Обязательные параметры: `TARGET` - имя цели, с которой связан заголовочный файл,
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и `BASE_FILENAME` - имя генерируемого заголовочного файла. Дополнительный аргумент
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`PREFIX` добавляет префикс к генерируемым именам переменных.
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#]=======================================================================]
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include_guard(GLOBAL)
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function(myx_generate_git_info_header target base_filename)
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set(options)
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set(oneValueArgs PREFIX)
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set(multiValueArgs)
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cmake_parse_arguments(ARG "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(ARG_PREFIX)
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string(APPEND ARG_PREFIX "_")
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endif()
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set(filename "${PROJECT_BINARY_DIR}/include/${base_filename}")
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set(git_info_hpp_in
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"#pragma once
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#if defined (@ARG_PREFIX@GIT_REV)
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#error \"Duplicate definition of macros @ARG_PREFIX@GIT_REV\"
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#else
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#define @ARG_PREFIX@GIT_REV \"@GIT_REV@\"
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#endif
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#if defined (@ARG_PREFIX@GIT_DIFF)
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#error \"Duplicate definition of macros @ARG_PREFIX@GIT_DIFF\"
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#else
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#define @ARG_PREFIX@GIT_DIFF \"@GIT_DIFF@\"
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#endif
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#if defined (@ARG_PREFIX@GIT_BRANCH)
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#error \"Duplicate definition of macros @ARG_PREFIX@GIT_BRANCH\"
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#else
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#define @ARG_PREFIX@GIT_BRANCH \"@GIT_BRANCH@\"
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#endif
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#if defined (@ARG_PREFIX@GIT_TAG)
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#error \"Duplicate definition of macros @ARG_PREFIX@GIT_TAG\"
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#else
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#define @ARG_PREFIX@GIT_TAG \"@GIT_TAG@\"
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#endif
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")
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set(git_info_hpp_in_path ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/myx_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(ARG_PREFIX ${ARG_PREFIX})
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set(GIT_REV \"N/A\")
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set(GIT_DIFF \"\")
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set(GIT_TAG \"N/A\")
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set(GIT_BRANCH \"N/A\")
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find_package(Git)
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if(GIT_EXECUTABLE)
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execute_process(COMMAND ${GIT_EXECUTABLE} log --pretty=format:'%h' -n 1 OUTPUT_VARIABLE GIT_REV ERROR_QUIET)
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# Check whether we got any revision (which isn't always the case,
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# e.g. when someone downloaded a zip file from Github instead of a checkout)
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if(NOT \"\${GIT_REV}\" STREQUAL \"\")
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execute_process(COMMAND bash -c \"${GIT_EXECUTABLE} diff --quiet --exit-code || echo +\" OUTPUT_VARIABLE GIT_DIFF)
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execute_process(COMMAND ${GIT_EXECUTABLE} describe --exact-match --tags OUTPUT_VARIABLE GIT_TAG ERROR_QUIET)
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execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD OUTPUT_VARIABLE GIT_BRANCH)
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string(STRIP \"\${GIT_REV}\" GIT_REV)
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string(SUBSTRING \"\${GIT_REV}\" 1 7 GIT_REV)
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string(STRIP \"\${GIT_DIFF}\" GIT_DIFF)
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string(STRIP \"\${GIT_TAG}\" GIT_TAG)
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string(STRIP \"\${GIT_BRANCH}\" GIT_BRANCH)
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endif()
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endif()
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configure_file(${git_info_hpp_in_path} \"\${GIT_INFO_FILE}\")
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")
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set(git_info_cmake_in_path "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/${target}-git-info.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 ${target}-git-info-header)
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add_custom_target(${target}-git-info-header ALL
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${CMAKE_COMMAND} -DGIT_INFO_FILE=${filename} -P ${git_info_cmake_in_path}
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BYPRODUCTS ${filename}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
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endif()
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# cmake-format: on
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set_property(TARGET ${target} APPEND PROPERTY PRIVATE_HEADER_FILES ${filename})
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target_sources(${target} PRIVATE ${filename})
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endfunction()
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