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# Get the GIT version as Major.Minor.Patch[-<hash>[-DIRTY]]
function(git_version var)
find_program(GIT git)
if(GIT)
execute_process(COMMAND ${GIT}
-C "${CMAKE_CURRENT_SOURCE_DIR}"
describe --match "V*"
RESULT_VARIABLE git_rc
OUTPUT_VARIABLE git_out
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET)
if(git_rc EQUAL 0)
string(REGEX REPLACE "^V" "" gitv "${git_out}")
execute_process(COMMAND ${GIT}
-C "${CMAKE_CURRENT_SOURCE_DIR}"
diff
OUTPUT_VARIABLE git_diff
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET)
if(NOT git_diff STREQUAL "")
set(gitv "${gitv}-DIRTY")
endif()
set(${var} "${gitv}" PARENT_SCOPE)
endif()
endif()
endfunction()
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