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58 lines
1.8 KiB
58 lines
1.8 KiB
# - Returns a version string from Git tags
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#
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# This function inspects the annotated git tags for the project and returns a string
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# into a CMake variable
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#
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# get_git_version(<var>)
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#
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# - Example
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#
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# include(GetGitVersion)
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# get_git_version(GIT_VERSION)
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#
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# Requires CMake 2.8.11+
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find_package(Git)
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if(__get_git_version)
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return()
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endif()
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set(__get_git_version INCLUDED)
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function(get_git_version var)
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if(GIT_EXECUTABLE)
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execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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RESULT_VARIABLE status
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OUTPUT_VARIABLE GIT_DESCRIBE_VERSION
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ERROR_QUIET)
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if(status)
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set(GIT_DESCRIBE_VERSION "v0.0.0")
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endif()
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string(STRIP ${GIT_DESCRIBE_VERSION} GIT_DESCRIBE_VERSION)
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if(GIT_DESCRIBE_VERSION MATCHES v[^-]*-)
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string(REGEX REPLACE "v([^-]*)-([0-9]+)-.*" "\\1.\\2" GIT_VERSION ${GIT_DESCRIBE_VERSION})
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else()
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string(REGEX REPLACE "v(.*)" "\\1" GIT_VERSION ${GIT_DESCRIBE_VERSION})
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endif()
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# Work out if the repository is dirty
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execute_process(COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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OUTPUT_QUIET
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ERROR_QUIET)
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execute_process(COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD --
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WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
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OUTPUT_VARIABLE GIT_DIFF_INDEX
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ERROR_QUIET)
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string(COMPARE NOTEQUAL "${GIT_DIFF_INDEX}" "" GIT_DIRTY)
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if (${GIT_DIRTY})
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set(GIT_DESCRIBE_VERSION "${GIT_DESCRIBE_VERSION}-dirty")
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endif()
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message(STATUS "git version: ${GIT_DESCRIBE_VERSION} normalized to ${GIT_VERSION}")
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else()
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set(GIT_VERSION "0.0.0")
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endif()
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set(${var} ${GIT_VERSION} PARENT_SCOPE)
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endfunction()
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