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0a50834 | 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 | import hashlib
from pathlib import Path
from huggingface_hub import HfApi, hf_hub_download
from .config import REPO
def fetch(directory, revision, vectors):
root = Path(directory)
root.mkdir(parents=True, exist_ok=True)
commit = HfApi().dataset_info(REPO, revision=revision).sha
sums = Path(hf_hub_download(REPO, 'SHA256SUMS', repo_type='dataset', revision=commit, local_dir=root))
hashes = dict(line.split(' ', 1)[::-1] for line in sums.read_text().splitlines())
selected = [name for name in hashes if name in {'manifest.json', 'dumps/neo4j.dump'} or (vectors and name.startswith('parquet/'))]
for name in selected:
relative = Path(name)
if relative.is_absolute() or '..' in relative.parts:
raise ValueError('Unsafe checksum path.')
path = Path(hf_hub_download(REPO, name, repo_type='dataset', revision=commit, local_dir=root))
with path.open('rb') as handle:
actual = hashlib.file_digest(handle, 'sha256').hexdigest()
if actual != hashes[name]:
raise ValueError('Checksum mismatch: ' + name)
print('Verified', name, flush=True)
print('Downloaded revision:', commit, flush=True)
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