| |
| """Materialize the flat language-shard view expected by DynamicWAM training.""" |
|
|
| from __future__ import annotations |
|
|
| import argparse |
| import os |
| from pathlib import Path |
|
|
|
|
| def main() -> None: |
| parser = argparse.ArgumentParser( |
| description=( |
| "Create flat lang/shards/shard_* links from the Hub-safe bucketed " |
| "layout. The operation is idempotent and does not duplicate payload data." |
| ) |
| ) |
| parser.add_argument( |
| "dataset_root", |
| type=Path, |
| help="Path to the downloaded dynamicwam_wo_motion directory", |
| ) |
| parser.add_argument( |
| "--mode", |
| choices=("symlink", "hardlink"), |
| default="symlink", |
| help="Link type for the flat compatibility view (default: symlink)", |
| ) |
| args = parser.parse_args() |
|
|
| dataset_root = args.dataset_root.resolve() |
| shard_root = dataset_root / "lang" / "shards" |
| bucket_directories = sorted(path for path in shard_root.glob("bucket_*") if path.is_dir()) |
| if not bucket_directories: |
| raise FileNotFoundError(f"No bucket directories found under {shard_root}") |
|
|
| created = 0 |
| existing = 0 |
| for bucket in bucket_directories: |
| for source in sorted(path for path in bucket.iterdir() if path.is_file()): |
| destination = shard_root / source.name |
| if destination.exists() or destination.is_symlink(): |
| try: |
| same_file = destination.samefile(source) |
| except FileNotFoundError: |
| same_file = False |
| if not same_file: |
| raise RuntimeError(f"Conflicting compatibility path: {destination}") |
| existing += 1 |
| continue |
| if args.mode == "symlink": |
| destination.symlink_to(Path(bucket.name) / source.name) |
| else: |
| os.link(source, destination) |
| created += 1 |
|
|
| print( |
| f"Materialized flat language-shard view: created={created}, " |
| f"already_present={existing}, total={created + existing}" |
| ) |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
