From a2d8d92df811c6b32d7f91ccb4955310eada165a Mon Sep 17 00:00:00 2001
From: Fabian Peddinghaus <fabian.peddinghaus@axelera.ai>
Date: Sat, 9 May 2026 14:05:44 +0200
Subject: [PATCH] Source version from git tags via setuptools-scm

Eliminates the dual-update workflow where pyproject.toml and
CMakeLists.txt had to be edited together for every release. The version
now flows from `git tag vX.Y.Z` through setuptools-scm and
scikit-build-core into CMake via SKBUILD_PROJECT_VERSION, so both the
Python package metadata and CMake's PROJECT_VERSION read the same
value. Between releases, builds get a PEP 440 dev version
automatically (e.g. 0.3.0.post1.dev0+gHASH).
---
 CMakeLists.txt | 10 +++++++++-
 pyproject.toml | 11 +++++++++--
 uv.lock        |  1 -
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7598afd..31d2ebe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,15 @@
 cmake_minimum_required(VERSION 3.18...3.30)
+
+# Version is sourced from setuptools-scm via scikit-build-core (git tags).
+# Fallback only applies for standalone CMake invocations outside the build
+# backend.
+if(NOT DEFINED SKBUILD_PROJECT_VERSION)
+  set(SKBUILD_PROJECT_VERSION "0.0.0")
+endif()
+
 project(
   OmniMalloc
-  VERSION 0.3.0 # Also update pyproject.toml
+  VERSION ${SKBUILD_PROJECT_VERSION}
   LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 20)
diff --git a/pyproject.toml b/pyproject.toml
index de71e4f..8086959 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,10 @@
 [build-system]
-requires = ["scikit-build-core>=0.11", "nanobind>=2.0"]
+requires = ["scikit-build-core>=0.11", "nanobind>=2.0", "setuptools-scm>=8"]
 build-backend = "scikit_build_core.build"
 
 [project]
 name = "omnimalloc"
-version = "0.3.0" # Also update CMakeLists.txt
+dynamic = ["version"]
 description = "Your one-stop shop for static memory allocation."
 readme = { file = "README.md", content-type = "text/markdown" }
 requires-python = ">=3.10"
@@ -65,6 +65,13 @@ build-dir = "build/{wheel_tag}"
 sdist.include = ["src/cpp/**"]
 sdist.exclude = [".github", "notebooks", "external"]
 
+[tool.scikit-build.metadata.version]
+provider = "scikit_build_core.metadata.setuptools_scm"
+
+[tool.setuptools_scm]
+version_scheme = "no-guess-dev"
+local_scheme = "dirty-tag"
+
 [tool.cibuildwheel]
 build = "cp310-* cp311-* cp312-* cp313-*"
 skip = "*-musllinux_*"
diff --git a/uv.lock b/uv.lock
index 3ed3c5a..2fc0154 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1551,7 +1551,6 @@ wheels = [
 
 [[package]]
 name = "omnimalloc"
-version = "0.2.0"
 source = { editable = "." }
 dependencies = [
     { name = "numpy", version = "2.2.6", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },