From 7f4918f1f17b0ddde6d1a8435e63f5f94c6dd065 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Mon, 20 Apr 2026 12:50:39 -0400
Subject: Generate version string based on repository information

---
 cmake/GitVersion.cmake | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 cmake/GitVersion.cmake

(limited to 'cmake')

diff --git a/cmake/GitVersion.cmake b/cmake/GitVersion.cmake
new file mode 100644
index 0000000..7280510
--- /dev/null
+++ b/cmake/GitVersion.cmake
@@ -0,0 +1,43 @@
+function(get_version_from_git)
+    find_package(Git QUIET)
+    if(NOT Git_FOUND)
+        message(WARNING "Git not found. Setting fallback version.")
+        set(PROJECT_VERSION "0.0.0")
+        set(PROJECT_VERSION ${PROJECT_VERSION} PARENT_SCOPE)
+        set(PROJECT_VERSION_BRANCH "unknown")
+        set(PROJECT_VERSION_BRANCH ${PROJECT_VERSION_BRANCH} PARENT_SCOPE)
+        return()
+    endif()
+
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} describe --first-parent --long --dirty --tags --always
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_TAG
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+        RESULT_VARIABLE GIT_RESULT
+    )
+    if(NOT GIT_RESULT EQUAL 0)
+        message(WARNING "Failed to get git describe info")
+        return()
+    endif()
+    message(${GIT_TAG})
+
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_BRANCH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+        RESULT_VARIABLE GIT_RESULT
+    )
+    if(NOT GIT_RESULT EQUAL 0)
+        message(WARNING "Failed to get git branch")
+        return()
+    endif()
+    message(${GIT_BRANCH})
+
+    string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
+    set(PROJECT_VERSION ${CLEAN_TAG})
+    set(PROJECT_VERSION ${CLEAN_TAG} PARENT_SCOPE)
+    set(PROJECT_VERSION_BRANCH ${GIT_BRANCH})
+    set(PROJECT_VERSION_BRANCH ${GIT_BRANCH} PARENT_SCOPE)
+endfunction()
\ No newline at end of file
-- 
cgit