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7145877 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | """Verify the downloaded handoff without extra packages."""
import hashlib
import json
from pathlib import Path
root = Path(__file__).resolve().parent
manifest = json.loads((root / 'FILES_SHA256.json').read_text())
for relative, info in manifest.items():
path = root / relative
if not path.resolve().is_relative_to(root):
raise SystemExit('Unsafe manifest path: ' + relative)
if not path.is_file() or path.stat().st_size != info['bytes']:
raise SystemExit('Missing or wrong size: ' + relative)
with path.open('rb') as stream:
actual = hashlib.file_digest(stream, 'sha256').hexdigest()
if actual != info['sha256']:
raise SystemExit('SHA256 mismatch: ' + relative)
print(f'PASS: {len(manifest)} files verified; this is a compact results package, not full trajectories or media.')
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