setup.sh: spatial codes via single bundle (7MB vs 2200 files)

setup.sh

@@ -339,8 +339,21 @@ token = os.environ.get("HF_TOKEN") or None
 api = HfApi(token=token)
 folders = [
     "harness", "symbolic", "analysis", "corruption", "calibration",
-    "encoder", "inference", "tests", "data/spatial codes",
+    "encoder", "inference", "tests",
 ]
+# Spatial codes ship as ONE bundled archive (bundles/spatial-codes.tar.gz, ~7MB)
+# instead of ~2200 individual files -- orders of magnitude faster to fetch. Falls
+# back to per-file sync if the bundle is missing from the repo.
+import tarfile
+try:
+    bundle = hf_hub_download(repo, "bundles/spatial-codes.tar.gz",
+                             repo_type="dataset", token=token)
+    with tarfile.open(bundle) as tar:
+        tar.extractall(root)
+    print("[data/spatial codes] extracted from bundle", flush=True)
+except Exception as exc:
+    print(f"[data/spatial codes] bundle unavailable ({exc}); per-file fallback", flush=True)
+    folders.append("data/spatial codes")
 if os.environ.get("WITH_CACHES") == "1":
     folders.append("data/caches")
 top_files = ["README.md", "backup.py", "setup.sh"]