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ScreenPlay/CMake/GetProjectVersion.cmake
2023-08-24 08:40:10 +02:00

34 lines
1.1 KiB
CMake

# Function: get_project_version
#
# Description:
# Fetches the project version from the latest Git tag. If Git is not found or
# the current directory is not a Git repository, it defaults to "0.0.0".
#
# Parameters:
# - VERSION_VAR: The name of the variable in which the fetched or default version will be stored.
#
# Example Usage:
# get_project_version(PROJECT_VERSION)
# message(STATUS "Version: ${PROJECT_VERSION}")
#
function(get_project_version VERSION_VAR)
find_package(Git)
if(GIT_FOUND)
execute_process(
COMMAND ${GIT_EXECUTABLE} describe --tags --always
OUTPUT_VARIABLE GIT_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
)
message(STATUS "Parsing git tag: ${GIT_VERSION}")
string(REPLACE "v" "" STRIPPED_VERSION "${GIT_VERSION}") # Remove the 'v' prefix
string(REPLACE "-" ";" VERSION_LIST ${STRIPPED_VERSION})
list(GET VERSION_LIST 0 VERSION_STRING)
set(${VERSION_VAR} ${VERSION_STRING} PARENT_SCOPE)
else()
set(${VERSION_VAR} "0.0.0" PARENT_SCOPE)
endif()
endfunction()