Add files using upload-large-folder tool

reshard_hf_dataset.py

@@ -0,0 +1,94 @@
+import argparse
+import json
+import os
+import shutil
+from pathlib import Path
+
+
+def copy_or_link(src: Path, dst: Path, mode: str) -> None:
+    dst.parent.mkdir(parents=True, exist_ok=True)
+
+    if dst.exists():
+        return
+
+    if mode == "hardlink":
+        try:
+            os.link(src, dst)
+            return
+        except OSError:
+            pass
+
+    shutil.copy2(src, dst)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--src", default=".", help="Original hf_dataset directory")
+    parser.add_argument("--dst", default="../hf_dataset_sharded", help="Output sharded dataset directory")
+    parser.add_argument("--group-size", type=int, default=5000, help="Images per subdirectory")
+    parser.add_argument("--mode", choices=["copy", "hardlink"], default="hardlink")
+    args = parser.parse_args()
+
+    src = Path(args.src).resolve()
+    dst = Path(args.dst).resolve()
+
+    metadata_in = src / "metadata.jsonl"
+    metadata_out = dst / "metadata.jsonl"
+
+    if not metadata_in.exists():
+        raise FileNotFoundError(f"Cannot find {metadata_in}")
+
+    if dst.exists():
+        raise FileExistsError(f"{dst} already exists. Delete it first or choose another --dst.")
+
+    dst.mkdir(parents=True)
+
+    # Copy root files and folders except images/ and metadata.jsonl.
+    for item in src.iterdir():
+        if item.name in {"images", "metadata.jsonl"}:
+            continue
+
+        target = dst / item.name
+        if item.is_dir():
+            shutil.copytree(item, target)
+        else:
+            shutil.copy2(item, target)
+
+    count = 0
+    missing = []
+
+    with metadata_in.open("r", encoding="utf-8") as fin, metadata_out.open("w", encoding="utf-8", newline="\n") as fout:
+        for idx, line in enumerate(fin):
+            if not line.strip():
+                continue
+
+            row = json.loads(line)
+            old_rel = Path(row["file_name"].replace("\\", "/"))
+            old_img = src / old_rel
+
+            if not old_img.exists():
+                missing.append(str(old_rel))
+                continue
+
+            part_name = f"part-{idx // args.group_size:05d}"
+            new_rel = Path("images") / part_name / old_rel.name
+            new_img = dst / new_rel
+
+            copy_or_link(old_img, new_img, args.mode)
+
+            row["file_name"] = new_rel.as_posix()
+            fout.write(json.dumps(row, ensure_ascii=False) + "\n")
+            count += 1
+
+    print(f"Done. Wrote {count} samples to {dst}")
+    print(f"New metadata: {metadata_out}")
+
+    if missing:
+        print(f"Missing images: {len(missing)}")
+        for x in missing[:20]:
+            print("  ", x)
+        raise SystemExit(1)
+
+
+if __name__ == "__main__":
+    main()