| """Rebuild full_pool_fp16.npy from its parts and check it against SHA256SUMS. | |
| On success it writes full_pool_READY, the marker the w9 notebooks look for before they | |
| use the full pool, so the folder can serve as their data directory as it is. | |
| usage (inside the downloaded folder): python join_full_pool.py [--keep-parts] | |
| """ | |
| import hashlib | |
| import sys | |
| from pathlib import Path | |
| here = Path(__file__).resolve().parent | |
| sums = dict(reversed(line.split(None, 1)) for line in | |
| (here / "SHA256SUMS").read_text().splitlines() if line.strip()) | |
| target = here / "full_pool_fp16.npy" | |
| parts = sorted(here.glob("full_pool_fp16.npy.part*")) | |
| if not parts: | |
| raise SystemExit("no full_pool_fp16.npy.part* files found") | |
| h = hashlib.sha256() | |
| with target.open("wb") as g: | |
| for p in parts: | |
| with p.open("rb") as f: | |
| while b := f.read(64 << 20): | |
| g.write(b); h.update(b) | |
| print("joined", p.name, flush=True) | |
| if h.hexdigest() != sums["full_pool_fp16.npy"]: | |
| raise SystemExit("SHA-256 mismatch: the rebuilt file is not the original") | |
| print("full_pool_fp16.npy rebuilt and verified") | |
| (here / "full_pool_READY").write_text("join_full_pool.py " + sums["full_pool_fp16.npy"]) | |
| print("wrote full_pool_READY") | |
| if "--keep-parts" not in sys.argv: | |
| for p in parts: | |
| p.unlink() | |