Temporary backup from J621 porting

nonpacks/common/git_utils.py

@@ -0,0 +1,26 @@
+import subprocess
+import os
+from functools import lru_cache
+
+@lru_cache(maxsize=1)
+def get_git_commit_hash(short=True):
+    """
+    Return the current Git commit hash.
+    If not in a git repo or git not available, returns 'unknown'.
+    """
+    try:
+        # Run from the project root (where manage.py is)
+        project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+        cmd = ['git', 'rev-parse', '--short', 'HEAD']
+        result = subprocess.run(
+            cmd,
+            cwd=project_root,
+            capture_output=True,
+            text=True,
+            timeout=5
+        )
+        if result.returncode == 0:
+            return result.stdout.strip()
+    except Exception:
+        pass
+    return "unknown"