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# Try to identify the current development source version.
set(CMAKE_VERSION_SOURCE "")
if(EXISTS ${CMAKE_SOURCE_DIR}/.git/HEAD)
find_program(GIT_EXECUTABLE NAMES git git.cmd)
mark_as_advanced(GIT_EXECUTABLE)
if(GIT_EXECUTABLE)
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --verify -q --short=7 HEAD
OUTPUT_VARIABLE head
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
if(head)
set(branch "")
execute_process(
COMMAND ${GIT_EXECUTABLE} name-rev HEAD
OUTPUT_VARIABLE branch
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
string(REGEX REPLACE "HEAD " "" branch "${branch}")
set(CMAKE_VERSION_SOURCE "git-${branch}-${head}")
execute_process(
COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
execute_process(
COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD --
OUTPUT_VARIABLE dirty
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
if(dirty)
set(CMAKE_VERSION_SOURCE "${CMAKE_VERSION_SOURCE}-dirty")
endif()
endif()
endif()
elseif(EXISTS ${CMAKE_SOURCE_DIR}/CVS/Repository)
file(READ ${CMAKE_SOURCE_DIR}/CVS/Repository repo)
set(branch "")
if("${repo}" MATCHES "\\.git/")
string(REGEX REPLACE ".*\\.git/([^\r\n]*).*" "-\\1" branch "${repo}")
endif()
set(CMAKE_VERSION_SOURCE "cvs${branch}")
endif()