Add progress logging to HPLT filtering

src/filter_european_hplt.py

@@ -206,6 +206,7 @@ def parse_args() -> argparse.Namespace:
     ap.add_argument("--min-words", type=int, default=80)
     ap.add_argument("--max-boilerplate-hits", type=int, default=3)
     ap.add_argument("--include-legalish", action="store_true")
+    ap.add_argument("--progress-every", type=int, default=100_000)
     ap.add_argument("--dry-run", action="store_true")
     return ap.parse_args()
 
@@ -255,6 +256,12 @@ def main() -> None:
             keep, reason = keep_row(row, args)
             if not keep:
                 stats["drop"][reason] = stats["drop"].get(reason, 0) + 1
+                if args.progress_every and stats["read"] % args.progress_every == 0:
+                    print(
+                        f"progress read={stats['read']:,} kept={stats['kept']:,} "
+                        f"tokens={stats['tokens']:,} last_drop={reason}",
+                        flush=True,
+                    )
                 continue
 
             registers = row.get("web-register") or {}
@@ -279,6 +286,12 @@ def main() -> None:
                 batch.clear()
             if stats["kept"] >= args.max_records or stats["tokens"] >= args.max_tokens:
                 break
+            if args.progress_every and stats["read"] % args.progress_every == 0:
+                print(
+                    f"progress read={stats['read']:,} kept={stats['kept']:,} "
+                    f"tokens={stats['tokens']:,}",
+                    flush=True,
+                )
     finally:
         if batch:
             if writer: