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# CMake version number components.
set(CMake_VERSION_MAJOR 3)
set(CMake_VERSION_MINOR 16)
set(CMake_VERSION_PATCH 0)
set(CMake_VERSION_RC 0)
set(CMake_VERSION_IS_DIRTY 0)
# Start with the full version number used in tags. It has no dev info.
set(CMake_VERSION
"${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}")
if(DEFINED CMake_VERSION_RC)
set(CMake_VERSION "${CMake_VERSION}-rc${CMake_VERSION_RC}")
endif()
# Releases define a small patch level.
if("${CMake_VERSION_PATCH}" VERSION_LESS 20000000)
set(CMake_VERSION_IS_RELEASE 1)
else()
set(CMake_VERSION_IS_RELEASE 0)
endif()
if(EXISTS ${CMake_SOURCE_DIR}/.git)
find_package(Git QUIET)
if(GIT_FOUND)
macro(_git)
execute_process(
COMMAND ${GIT_EXECUTABLE} ${ARGN}
WORKING_DIRECTORY ${CMake_SOURCE_DIR}
RESULT_VARIABLE _git_res
OUTPUT_VARIABLE _git_out OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_VARIABLE _git_err ERROR_STRIP_TRAILING_WHITESPACE
)
endmacro()
endif()
endif()
# Try to identify the current development source version.
if(COMMAND _git)
# Get the commit checked out in this work tree.
_git(log -n 1 HEAD "--pretty=format:%h %s" --)
set(git_info "${_git_out}")
else()
# Get the commit exported by 'git archive'.
set(git_info [==[$Format:%h %s$]==])
endif()
# Extract commit information if available.
if(git_info MATCHES "^([0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]?[0-9a-f]?)[0-9a-f]* (.*)$")
# Have commit information.
set(git_hash "${CMAKE_MATCH_1}")
set(git_subject "${CMAKE_MATCH_2}")
# If this is not the exact commit of a release, add dev info.
if(NOT "${git_subject}" MATCHES "^[Cc][Mm]ake ${CMake_VERSION}$")
set(CMake_VERSION "${CMake_VERSION}-g${git_hash}")
endif()
# If this is a work tree, check whether it is dirty.
if(COMMAND _git)
_git(update-index -q --refresh)
_git(diff-index --name-only HEAD --)
if(_git_out)
set(CMake_VERSION_IS_DIRTY 1)
endif()
endif()
else()
# No commit information.
if(NOT CMake_VERSION_IS_RELEASE)
# Generic development version.
set(CMake_VERSION "${CMake_VERSION}-git")
endif()
endif()
# Extract the version suffix component.
if(CMake_VERSION MATCHES "-(.*)$")
set(CMake_VERSION_SUFFIX "${CMAKE_MATCH_1}")
else()
set(CMake_VERSION_SUFFIX "")
endif()
if(CMake_VERSION_IS_DIRTY)
set(CMake_VERSION ${CMake_VERSION}-dirty)
endif()
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