resolve path correctlt (#2710)

Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>

src/lerobot/utils/rabc.py

@@ -20,6 +20,18 @@ from pathlib import Path
 import numpy as np
 import pandas as pd
 import torch
+from huggingface_hub import hf_hub_download
+
+
+def resolve_hf_path(path: str | Path) -> Path:
+    """Resolve a path that may be a HuggingFace URL (hf://datasets/...) to a local path."""
+    path_str = str(path)
+    if path_str.startswith("hf://datasets/"):
+        parts = path_str.replace("hf://datasets/", "").split("/")
+        repo_id = "/".join(parts[:2])
+        filename = "/".join(parts[2:])
+        return Path(hf_hub_download(repo_id=repo_id, filename=filename, repo_type="dataset"))
+    return Path(path)
 
 
 class RABCWeights:
@@ -51,7 +63,7 @@ class RABCWeights:
         fallback_weight: float = 1.0,
         device: torch.device = None,
     ):
-        self.progress_path = Path(progress_path)
+        self.progress_path = resolve_hf_path(progress_path)
         self.chunk_size = chunk_size
         self.head_mode = head_mode
         self.kappa = kappa