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|
find_program(GIT_COMMAND git)
function(get_version_from_git VERSION_VAR VERSION_FULL_VAR)
if(GIT_COMMAND)
execute_process(
COMMAND ${GIT_COMMAND} describe
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
RESULT_VARIABLE GIT_DESCRIBE_RESULT
OUTPUT_VARIABLE GIT_DESCRIBE_OUTPUT
ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(GIT_DESCRIBE_RESULT EQUAL 0)
string(REGEX REPLACE "^v([0-9]+.[0-9]+.[0-9]+).*" "\\1" VERSION ${GIT_DESCRIBE_OUTPUT})
string(REGEX REPLACE "^v[0-9]+.[0-9]+.[0-9]+-?([0-9]*)-?.*" "\\1" VERSION_POST_COMMITS ${GIT_DESCRIBE_OUTPUT})
if(VERSION_POST_COMMITS)
set(VERSION_FULL "${VERSION}.post${VERSION_POST_COMMITS}")
else()
set(VERSION_FULL "${VERSION}")
endif()
endif()
endif()
if(NOT VERSION AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/version.txt")
message(STATUS "Could not read version from git and will fall back to version.txt")
file(READ "${CMAKE_CURRENT_SOURCE_DIR}/version.txt" VERSION_RAW)
string(STRIP "${VERSION_RAW}" VERSION_FULL)
string(REGEX REPLACE "^([0-9]+.[0-9]+.[0-9]+).*" "\\1" VERSION ${VERSION_FULL})
endif()
if(NOT VERSION)
message(WARNING "Could not read version from git or version.txt")
set(VERSION "0.0.0")
set(VERSION_FULL "Unknown")
endif()
set(${VERSION_VAR}
${VERSION}
PARENT_SCOPE
)
set(${VERSION_FULL_VAR}
${VERSION_FULL}
PARENT_SCOPE
)
endfunction()
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