From 379342c0868d42bbeb4f03b8d5f908f22944db2c Mon Sep 17 00:00:00 2001
From: Carl Philipp Klemm <philipp@uvos.xyz>
Date: Thu, 18 Sep 2025 13:06:47 +0200
Subject: [PATCH] Add missing cmake file

---
 cmake/GitVersion.cmake | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 cmake/GitVersion.cmake

diff --git a/cmake/GitVersion.cmake b/cmake/GitVersion.cmake
new file mode 100644
index 0000000..7913c7e
--- /dev/null
+++ b/cmake/GitVersion.cmake
@@ -0,0 +1,38 @@
+function(get_version_from_git)
+	find_package(Git REQUIRED)
+
+	execute_process(
+		COMMAND ${GIT_EXECUTABLE} describe --tags --always
+		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+		OUTPUT_VARIABLE GIT_TAG
+		OUTPUT_STRIP_TRAILING_WHITESPACE
+		RESULT_VARIABLE GIT_RESULT
+	)
+
+	if(NOT GIT_RESULT EQUAL 0)
+		message(FATAL_ERROR "Failed to get git tag")
+	endif()
+
+	execute_process(
+		COMMAND ${GIT_EXECUTABLE} rev-parse --short=7 HEAD
+		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+		OUTPUT_VARIABLE GIT_COMMIT_SHORT_HASH
+		OUTPUT_STRIP_TRAILING_WHITESPACE
+	)
+
+	string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
+	if(CLEAN_TAG MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-.*)?$")
+
+		set(CMAKE_PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
+		set(CMAKE_PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1} PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
+		set(CMAKE_PROJECT_VERSION_MINOR ${CMAKE_MATCH_2} PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
+		set(CMAKE_PROJECT_VERSION_PATCH ${CMAKE_MATCH_3} PARENT_SCOPE)
+
+		set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}")
+		set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" PARENT_SCOPE)
+	else()
+		message(FATAL_ERROR "Tag '${CLEAN_TAG}' does not match semver format")
+	endif()
+endfunction()