Preserve nested prediction directories for page_ids containing "/"

page_id can contain "/" (e.g. this dataset uses <source>/<page>), which prepare/run/convert scripts preserve as nested prediction directories. Use rglob instead of glob and mirror the relative path in the output dir, instead of flattening to the basename, so evaluate_from_hf.py can look predictions up by predictions_dir / f"{page_id}.csv".

evaluation_kit/convert_predictions_to_evaluation_csv.py

@@ -106,20 +106,27 @@ def main() -> None:
     args = parse_args()
     args.output_dir.mkdir(parents=True, exist_ok=True)
 
-    prediction_files = sorted(args.predictions_dir.glob("*.json"))
+    # rglob (not glob): page_id can itself contain "/" (e.g. RLALT/ACoPPer uses
+    # "<source>/<page>"), which prepare/run/convert scripts preserve as nested
+    # prediction directories. evaluate_from_hf.py looks up predictions by
+    # `predictions_dir / f"{page_id}.csv"`, i.e. it expects that same nested
+    # layout to be mirrored here rather than flattened.
+    prediction_files = sorted(args.predictions_dir.rglob("*.json"))
     if not prediction_files:
         raise FileNotFoundError(f"No JSON files found in {args.predictions_dir}")
 
     written = 0
     skipped = 0
     for pred_path in prediction_files:
-        output_path = args.output_dir / pred_path.with_suffix(".csv").name
+        relative_path = pred_path.relative_to(args.predictions_dir).with_suffix(".csv")
+        output_path = args.output_dir / relative_path
         if output_path.exists() and not args.overwrite:
             skipped += 1
             continue
 
         predictions = load_predictions(pred_path)
         rows = to_csv_rows(predictions, path=pred_path)
+        output_path.parent.mkdir(parents=True, exist_ok=True)
         write_csv(rows, output_path)
         written += 1