From 2adae5a893333df7e7c8f6f2120f509387d10a75 Mon Sep 17 00:00:00 2001
From: kj16609 <bigskyman02@gmail.com>
Date: Sat, 8 Nov 2025 22:35:24 -0500
Subject: [PATCH] Adds logic for adding the git tag to defines

---
 modules/git/commit.cmake |  7 ++-
 modules/git/tag.cmake    | 95 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+), 4 deletions(-)
 create mode 100644 modules/git/tag.cmake

diff --git a/modules/git/commit.cmake b/modules/git/commit.cmake
index a2d92d7..3e1fb0c 100644
--- a/modules/git/commit.cmake
+++ b/modules/git/commit.cmake
@@ -71,10 +71,6 @@ function(addGitBranchDefine TARGET)
 	target_compile_definitions(${TARGET} PRIVATE FGL_GIT_BRANCH="${GIT_BRANCH}")
 endfunction()
 
-function(addGitTagDefine TARGET)
-	getGitTag(GIT_TAG)
-	target_compile_definitions(${TARGET} PRIVATE FGL_GIT_TAG="${GIT_TAG}")
-endfunction()
 
 function(getIsDirty OUTPUT_VARIABLE)
 	find_package(Git QUIET)
@@ -107,9 +103,12 @@ function(addGitDirtyDefine TARGET)
 	target_compile_definitions(${TARGET} PRIVATE FGL_GIT_IS_DIRTY=1)
 endfunction()
 
+include(modules/git/tag.cmake)
+
 function(AddGitInfo TARGET)
 	addGitCommitDefine(${TARGET})
 	addGitBranchDefine(${TARGET})
 	addGitDirtyDefine(${TARGET})
 	addGitTagDefine(${TARGET})
+	addGitUnsyncedDefine(${TARGET})
 endfunction()
diff --git a/modules/git/tag.cmake b/modules/git/tag.cmake
new file mode 100644
index 0000000..7ca41fe
--- /dev/null
+++ b/modules/git/tag.cmake
@@ -0,0 +1,95 @@
+function(getGitTagVersion)
+	execute_process(
+			COMMAND git describe --tags --abbrev=0
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_VARIABLE GIT_TAG_VERSION
+			OUTPUT_STRIP_TRAILING_WHITESPACE
+			ERROR_QUIET
+	)
+
+	if (NOT GIT_TAG_VERSION)
+		set(GIT_TAG_VERSION "v0.0.0")
+	endif ()
+
+	string(REGEX MATCH "v?([0-9]+)\\.([0-9]+)\\.([0-9]+)" _ ${GIT_TAG_VERSION})
+	if (CMAKE_MATCH_1)
+		set(VERSION_MAJOR ${CMAKE_MATCH_1})
+	else ()
+		set(VERSION_MAJOR 0)
+	endif ()
+	if (CMAKE_MATCH_2)
+		set(VERSION_MINOR ${CMAKE_MATCH_2})
+	else ()
+		set(VERSION_MINOR 0)
+	endif ()
+	if (CMAKE_MATCH_3)
+		set(VERSION_PATCH ${CMAKE_MATCH_3})
+	else ()
+		set(VERSION_PATCH 0)
+	endif ()
+
+	set(GIT_TAG_VERSION ${GIT_TAG_VERSION} PARENT_SCOPE)
+	set(VERSION_MAJOR ${VERSION_MAJOR} PARENT_SCOPE)
+	set(VERSION_MINOR ${VERSION_MINOR} PARENT_SCOPE)
+	set(VERSION_PATCH ${VERSION_PATCH} PARENT_SCOPE)
+endfunction()
+
+function(setGitTagVersionDefines TARGET)
+	getGitTagVersion()
+
+	message("Adding targets to ${TARGET}_X_VERSION")
+
+	target_compile_definitions(${TARGET} PUBLIC
+			${TARGET}_MAJOR_VERSION=${VERSION_MAJOR}
+			${TARGET}_MINOR_VERSION=${VERSION_MINOR}
+			${TARGET}_PATCH_VERSION=${VERSION_PATCH}
+	)
+endfunction()
+
+function(addGitTagDefine TARGET)
+	getGitTag(GIT_TAG)
+	setGitTagVersionDefines(${TARGET})
+	target_compile_definitions(${TARGET} PRIVATE FGL_GIT_TAG="${GIT_TAG}")
+endfunction()
+
+function(getIsUnsynced OUTPUT_VARIABLE)
+	find_package(Git QUIET)
+	if (GIT_FOUND)
+		# Get the commit hash of the latest tag
+		execute_process(
+				COMMAND ${GIT_EXECUTABLE} rev-list -n 1 $ (${GIT_EXECUTABLE} describe --tags --abbrev=0)
+				WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+				OUTPUT_VARIABLE TAG_COMMIT
+				ERROR_VARIABLE GIT_ERROR
+				OUTPUT_STRIP_TRAILING_WHITESPACE
+				ERROR_STRIP_TRAILING_WHITESPACE
+		)
+
+		# Get the current commit hash
+		execute_process(
+				COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
+				WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+				OUTPUT_VARIABLE CURRENT_COMMIT
+				ERROR_VARIABLE GIT_ERROR2
+				OUTPUT_STRIP_TRAILING_WHITESPACE
+				ERROR_STRIP_TRAILING_WHITESPACE
+		)
+
+		if (NOT GIT_ERROR AND NOT GIT_ERROR2)
+			if (NOT "${CURRENT_COMMIT}" STREQUAL "${TAG_COMMIT}")
+				set(${OUTPUT_VARIABLE} "1" PARENT_SCOPE)
+			else ()
+				set(${OUTPUT_VARIABLE} "0" PARENT_SCOPE)
+			endif ()
+		else ()
+			set(${OUTPUT_VARIABLE} "-1" PARENT_SCOPE)
+		endif ()
+	else ()
+		set(${OUTPUT_VARIABLE} "-1" PARENT_SCOPE)
+	endif ()
+endfunction()
+
+function(addGitUnsyncedDefine TARGET)
+	getIsUnsynced(GIT_UNSYNCED)
+	target_compile_definitions(${TARGET} PRIVATE FGL_GIT_UNSYNCED=${GIT_UNSYNCED})
+endfunction()
\ No newline at end of file