File size: 4,718 Bytes
05cb22e | 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 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | #!/usr/bin/env python3
"""Validate the standardized BENO dataset package."""
from __future__ import annotations
import argparse
import hashlib
import json
import sys
from pathlib import Path
import numpy as np
REPO_ROOT = Path(__file__).resolve().parents[1]
DATA_ROOT = REPO_ROOT / "data"
CHECKSUM_PATH = REPO_ROOT / "files_sha256.jsonl"
BOUNDARIES = ("Dirichlet", "Neumann")
PREFIXES = ("N32_0c", "N32_1c", "N32_2c", "N32_3c", "N32_4c", "N32_mix")
KINDS = ("BC", "RHS", "SOL")
EXPECTED_SHAPES = {
"BC": (1000, 128, 4),
"RHS": (1000, 1024, 4),
"SOL": (1000, 1024, 1),
}
def fail(message: str) -> None:
print(f"[FAIL] {message}")
raise SystemExit(1)
def ok(message: str) -> None:
print(f"[OK] {message}")
def warn(message: str) -> None:
print(f"[WARN] {message}")
def sha256_file(path: Path) -> str:
digest = hashlib.sha256()
with path.open("rb") as handle:
for chunk in iter(lambda: handle.read(1024 * 1024), b""):
digest.update(chunk)
return digest.hexdigest()
def expected_files() -> list[Path]:
return [
DATA_ROOT / boundary / f"{kind}_{prefix}_all.npy"
for boundary in BOUNDARIES
for prefix in PREFIXES
for kind in KINDS
]
def validate_structure() -> None:
if not DATA_ROOT.is_dir():
fail(f"dataset data root does not exist: {DATA_ROOT}")
missing = [str(path.relative_to(REPO_ROOT)) for path in expected_files() if not path.is_file()]
if missing:
fail("missing required NPY files: " + "; ".join(missing[:10]))
actual = sorted(path for path in DATA_ROOT.glob("*/*.npy"))
expected = sorted(expected_files())
if [p.relative_to(REPO_ROOT) for p in actual] != [p.relative_to(REPO_ROOT) for p in expected]:
fail(f"unexpected NPY file set: expected {len(expected)}, got {len(actual)}")
ok("dataset file names and directory layout are valid")
def validate_arrays(sample_values: bool) -> None:
for path in expected_files():
kind = path.name.split("_", 1)[0]
arr = np.load(path, mmap_mode="r")
if tuple(arr.shape) != EXPECTED_SHAPES[kind]:
fail(f"{path.relative_to(REPO_ROOT)} shape mismatch: expected {EXPECTED_SHAPES[kind]}, got {tuple(arr.shape)}")
if arr.dtype != np.float64:
fail(f"{path.relative_to(REPO_ROOT)} dtype mismatch: expected float64, got {arr.dtype}")
if sample_values:
probe = np.asarray(arr[0])
if kind == "BC":
required_channels = probe[:, :3]
if not np.isfinite(required_channels).all():
fail(f"{path.relative_to(REPO_ROOT)} contains non-finite values in BC channels 0:3")
optional_channel = probe[:, 3]
nonfinite = optional_channel.size - int(np.isfinite(optional_channel).sum())
if nonfinite:
warn(f"{path.relative_to(REPO_ROOT)} BC channel 3 contains {nonfinite} non-finite placeholder values in first sample")
elif not np.isfinite(probe).all():
fail(f"{path.relative_to(REPO_ROOT)} contains non-finite values in first sample")
ok("dataset NPY files are readable and match expected shape/dtype")
def verify_checksums(full_hash: bool) -> None:
if not CHECKSUM_PATH.exists():
warn(f"checksum manifest is not present: {CHECKSUM_PATH}")
return
records = []
for line in CHECKSUM_PATH.read_text(encoding="utf-8").splitlines():
if line.strip():
records.append(json.loads(line))
if len(records) != 36:
fail(f"checksum manifest must contain 36 records, got {len(records)}")
for record in records:
path = REPO_ROOT / record["path"]
if not path.is_file():
fail(f"checksum entry points to missing file: {path}")
size = path.stat().st_size
if size != record["size"]:
fail(f"size mismatch for {path}: expected {record['size']}, got {size}")
if full_hash:
digest = sha256_file(path)
if digest != record["sha256"]:
fail(f"sha256 mismatch for {path}")
mode = "size+sha256" if full_hash else "size"
ok(f"checksum manifest verified in {mode} mode: {len(records)} files")
def main() -> int:
parser = argparse.ArgumentParser()
parser.add_argument("--full-hash", action="store_true")
parser.add_argument("--skip-value-sample", action="store_true")
args = parser.parse_args()
validate_structure()
validate_arrays(sample_values=not args.skip_value_sample)
verify_checksums(full_hash=args.full_hash)
ok("dataset validation completed")
return 0
if __name__ == "__main__":
sys.exit(main())
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