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# Portions of this file have been borrowed from and/or inspired by
# the Version.cmake from the rtl-sdr project.
# http://sdr.osmocom.org/trac/wiki/rtl-sdr
#
# Provides:
# ${VERSION_INFO_BASE} - Major.Minor.Patch
# ${VERSION_INFO} - Major.minor.Patch[-git_info]
#
# Requires values for:
# ${VERSION_INFO_MAJOR} - Increment on API compatibility changes.
# ${VERSION_INFO_MINOR} - Increment when adding features.
# ${VERSION_INFO_PATCH} - Increment for bug and documentation changes.
#
# Optional:
# ${VERSION_INFO_EXTRA} - Set to "git" to append git info. This is
# intended only for non-versioned development
# builds
# ${VERSION_INFO_OVERRIDE} - Set to a non-null value to override the
# VERSION_INFO_EXTRA logic. This is intended
# for automated snapshot builds from exported
# trees, to pass in the git revision info.
#
if(DEFINED __INCLUDED_VERSION_CMAKE)
return()
endif()
set(__INCLUDED_VERSION_CMAKE TRUE)
################################################################################
# Gather up variables provided by parent script
################################################################################
if(NOT DEFINED VERSION_INFO_MAJOR)
message(FATAL_ERROR "VERSION_INFO_MAJOR is not defined")
else()
set(VER_MAJ ${VERSION_INFO_MAJOR})
endif()
if(NOT DEFINED VERSION_INFO_MINOR)
message(FATAL_ERROR "VERSION_INFO_MINOR is not defined")
else()
set(VER_MIN ${VERSION_INFO_MINOR})
endif()
if(NOT DEFINED VERSION_INFO_PATCH)
message(FATAL_ERROR "VERSION_INFO_PATCH is not defined")
else()
set(VER_PAT ${VERSION_INFO_PATCH})
endif()
################################################################################
# Craft version number, using git, if needed
################################################################################
find_package(Git QUIET)
if(GIT_FOUND)
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --
ERROR_QUIET
RESULT_VARIABLE NOT_GIT_REPOSITORY
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
if(NOT_GIT_REPOSITORY)
set(GIT_INFO "-unknown")
else()
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD --
OUTPUT_VARIABLE GIT_REV OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
execute_process(
COMMAND ${GIT_EXECUTABLE} diff-index --quiet HEAD --
RESULT_VARIABLE GIT_DIRTY
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
if(GIT_DIRTY)
set(GIT_INFO "-${GIT_REV}-dirty")
else()
set(GIT_INFO "-${GIT_REV}")
endif()
endif()
else()
message(WARNING "git missing -- unable to check version.")
unset(NOT_GIT_REPOSITORY)
unset(GIT_REV)
unset(GIT_DIRTY)
endif()
################################################################################
# Provide
################################################################################
set(VERSION_INFO_BASE "${VER_MAJ}.${VER_MIN}.${VER_PAT}")
# Force the version suffix. Used for automated export builds.
if(VERSION_INFO_OVERRIDE)
set(VERSION_INFO "${VERSION_INFO_BASE}-${VERSION_INFO_OVERRIDE}")
# Intra-release builds
elseif("${VERSION_INFO_EXTRA}" STREQUAL "git")
set(VERSION_INFO "${VERSION_INFO_BASE}-git${GIT_INFO}")
# Versioned releases
elseif("${VERSION_INFO_EXTRA}" STREQUAL "")
set(VERSION_INFO "${VERSION_INFO_BASE}")
# Invalid
else()
message(FATAL_ERROR
"Unexpected definition of VERSION_INFO_EXTRA: ${VERSION_INFO_EXTRA}")
endif()
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