Add weights download script for repos without LFS support

download_weights.py

@@ -0,0 +1,72 @@
+"""Download Inflect-Nano-v1 model weights from HuggingFace.
+
+Run this once after cloning the repo:
+    python download_weights.py
+"""
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+# Use requests or urllib — try both
+try:
+    import requests
+    _has_requests = True
+except ImportError:
+    import urllib.request
+    import urllib.error
+    _has_requests = False
+
+WEIGHTS_DIR = Path(__file__).resolve().parent / "weights"
+HF_BASE = "https://huggingface.co/owensong/Inflect-Nano-v1/resolve/main/weights"
+
+FILES = [
+    "inflect_nano_v1_acoustic.pt",
+    "inflect_nano_v1_vocoder.pt",
+]
+
+
+def download_file(url: str, dest: Path) -> None:
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    print(f"Downloading {dest.name}...", end=" ", flush=True)
+
+    if _has_requests:
+        resp = requests.get(url, stream=True)
+        resp.raise_for_status()
+        total = int(resp.headers.get("content-length", 0))
+        with dest.open("wb") as f:
+            downloaded = 0
+            for chunk in resp.iter_content(chunk_size=8192):
+                f.write(chunk)
+                downloaded += len(chunk)
+                if total:
+                    pct = downloaded * 100 // total
+                    print(f"\rDownloading {dest.name}... {pct}%", end="", flush=True)
+        print(" done.")
+    else:
+        urllib.request.urlretrieve(url, str(dest))
+        print("done.")
+
+
+def main() -> None:
+    missing = [f for f in FILES if not (WEIGHTS_DIR / f).is_file()]
+    if not missing:
+        print("All weights already present.")
+        return
+
+    print(f"Missing {len(missing)} weight file(s). Downloading from HuggingFace...\n")
+    for filename in missing:
+        url = f"{HF_BASE}/{filename}"
+        dest = WEIGHTS_DIR / filename
+        try:
+            download_file(url, dest)
+        except Exception as e:
+            print(f"\n  FAILED: {e}")
+            print(f"  Manual download: {url}")
+            sys.exit(1)
+
+    print(f"\nAll weights downloaded to {WEIGHTS_DIR}")
+
+
+if __name__ == "__main__":
+    main()