File size: 2,136 Bytes
3650c7a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | #!/usr/bin/env python3
"""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()
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