feat: add vcs util

utils/__init__.py

@@ -0,0 +1 @@
+from .vcs import get_current_tag

utils/vcs.py

@@ -0,0 +1,11 @@
+from pathlib import Path
+
+import pygit2
+
+
+def get_current_tag() -> str:
+    repo = pygit2.Repository(Path(__file__).parent.absolute())
+    for file, val in repo.status().items():
+        if val != 1 << 14:
+            raise RuntimeError("Unstaged commit detected:", file, val)
+    return repo.head.peel().short_id