cmake_modules/revinfo.cmake
author nemo
Sun, 24 Mar 2024 14:33:57 -0400
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permissions -rw-r--r--
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#detect Mercurial revision and init rev/hash information
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find_program(HGCOMMAND hg)
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find_program(GITCOMMAND git)
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if(EXISTS ${CMAKE_SOURCE_DIR}/.hg AND HGCOMMAND AND NOT NOVERSIONINFOUPDATE)
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    execute_process(COMMAND ${HGCOMMAND} identify -in
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                    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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                    OUTPUT_VARIABLE internal_version
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                    ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    #check local repo status
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    string(REGEX REPLACE "[^+]" "" HGCHANGED ${internal_version})
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    string(REGEX REPLACE "[0-9a-zA-Z]+(.*) ([0-9]+)(.*)" "\\2" HEDGEWARS_REVISION ${internal_version})
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    string(REGEX REPLACE "([0-9a-zA-Z]+)(.*) [0-9]+(.*)" "\\1" HEDGEWARS_HASH ${internal_version})
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    if(HGCHANGED)
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        message("*** You have uncommitted changes in your repository ***")
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    endif()
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    #let's assume that if you have hg you might be interested in debugging
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    set(default_build_type "Debug")
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    #write down hash and rev for easy picking should hg be missing
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    file(WRITE "${CMAKE_SOURCE_DIR}/share/version_info.txt" "Hedgewars versioning information, do not modify\nrev ${HEDGEWARS_REVISION}\nhash ${HEDGEWARS_HASH}\n")
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elseif(EXISTS ${CMAKE_SOURCE_DIR}/.git AND GITCOMMAND AND NOT NOVERSIONINFOUPDATE)
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    execute_process(COMMAND ${GITCOMMAND} rev-parse --short HEAD
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                    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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                    OUTPUT_VARIABLE HEDGEWARS_HASH
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                    ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    set(HEDGEWARS_REVISION "GIT")
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    #let's assume that if you have git you might be interested in debugging
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    set(default_build_type "Debug")
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    #write down hash and rev for easy picking should hg be missing
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    file(WRITE "${CMAKE_SOURCE_DIR}/share/version_info.txt" "Hedgewars versioning information, do not modify\nrev ${HEDGEWARS_REVISION}\nhash ${HEDGEWARS_HASH}\n")
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else()
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    set(default_build_type "Release")
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    # when compiling outside rev control, fetch revision and hash information from version_info.txt
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    find_file(version_info version_info.txt PATH ${CMAKE_SOURCE_DIR}/share)
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    if(version_info)
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        file(STRINGS ${version_info} internal_version REGEX "rev")
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        string(REGEX REPLACE "rev ([GIT0-9]*)" "\\1" HEDGEWARS_REVISION ${internal_version})
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        file(STRINGS ${version_info} internal_version REGEX "hash")
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        string(REGEX REPLACE "hash ([a-zA-Z0-9]*)" "\\1" HEDGEWARS_HASH ${internal_version})
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    else()
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        message(WARNING "${CMAKE_SOURCE_DIR}/share/version_info.txt not found, revision information "
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                        "will be incorrect!!! Contact your source provider to fix this!")
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        set(HEDGEWARS_REVISION "0000")
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        set(HEDGEWARS_HASH "unknown")
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    endif()
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endif()
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