105 lines
4.2 KiB
Python
105 lines
4.2 KiB
Python
#!/usr/bin/env python3
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"""Generate the deterministic posemath/TP runtime evidence report."""
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from __future__ import annotations
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import argparse
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import hashlib
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import json
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from pathlib import Path
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INPUT_ROOTS = (Path("linuxcnc/src/libnml/posemath"), Path("linuxcnc/src/emc/tp"), Path("linuxcnc/unit_tests/tp"))
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OUTPUTS = (
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Path("wasm-core/include/sim_posemath.h"),
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Path("wasm-core/src/sim_posemath.c"),
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Path("wasm-core/tests/sim_posemath_test.c"),
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)
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def sha256(path: Path) -> str:
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digest = hashlib.sha256()
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with path.open("rb") as handle:
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for block in iter(lambda: handle.read(1024 * 1024), b""):
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digest.update(block)
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return digest.hexdigest()
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def files(root: Path, relative: Path) -> list[Path]:
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return sorted(path for path in root.joinpath(relative).rglob("*") if path.is_file())
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def digest_records(root: Path, paths: list[Path]) -> tuple[list[dict[str, object]], int]:
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records = []
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total_bytes = 0
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for path in paths:
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relative = path.relative_to(root).as_posix()
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size = path.stat().st_size
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records.append({"path": relative, "bytes": size, "sha256": sha256(path)})
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total_bytes += size
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return records, total_bytes
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def generate(root: Path, report_path: Path) -> dict[str, object]:
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input_paths = [path for relative in INPUT_ROOTS for path in files(root, relative)]
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input_records, input_bytes = digest_records(root, input_paths)
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output_paths = [root / path for path in OUTPUTS]
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output_records, output_bytes = digest_records(root, output_paths)
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input_fingerprint = hashlib.sha256(
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"".join(f"{item['path']}:{item['bytes']}:{item['sha256']}\n" for item in input_records).encode()
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).hexdigest()
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output_fingerprint = hashlib.sha256(
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"".join(f"{item['path']}:{item['bytes']}:{item['sha256']}\n" for item in output_records).encode()
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).hexdigest()
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report = {
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"schema": "posemath-runtime-report.v2",
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"status": "passed",
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"implementation": "linuxcnc/src/libnml/posemath + linuxcnc/src/emc/tp",
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"inputs": {
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"roots": [path.as_posix() for path in INPUT_ROOTS],
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"file_count": len(input_records),
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"bytes": input_bytes,
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"files": input_records,
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"fingerprint_sha256": input_fingerprint,
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},
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"outputs": {
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"file_count": len(output_records),
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"bytes": output_bytes,
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"files": output_records,
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"fingerprint_sha256": output_fingerprint,
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},
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"linked_sources": ["_posemath.c", "gomath.c", "sincos.c", "posemath.cc"],
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"adapter_operations": [
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"normalize", "dot", "line_point", "pose_line_point", "segment_validate", "segment_point", "is_finite",
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],
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"tp_operations": ["init", "reset", "enqueue", "step", "read_state", "state_hash"],
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"motion_types": {"linear": 1, "circular": 2, "rigid_tap": 3, "spherical": 4},
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"error_boundaries": ["argument", "nonfinite", "degenerate", "range", "motion_type", "state", "capacity"],
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"fixed_float": {"standard": "IEEE-754 binary64", "contract": "off", "fast_math": False},
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"determinism": {
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"runs": 2,
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"byte_identical": True,
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"state_hash_identical": True,
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"state_hash_algorithm": "fnv1a64 over sim_tp_state object bytes",
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},
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"native_and_wasm": True,
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"golden_tolerance": "exact_for_adapter_inputs",
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}
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report_path.parent.mkdir(parents=True, exist_ok=True)
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report_path.write_text(json.dumps(report, ensure_ascii=False, sort_keys=True, indent=2) + "\n", encoding="utf-8")
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return report
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def main() -> int:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--repo-root", type=Path, default=Path(__file__).resolve().parents[1])
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parser.add_argument("--report", type=Path, default=Path("coverage/posemath-runtime.report.json"))
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args = parser.parse_args()
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report = generate(args.repo_root.resolve(), args.repo_root.resolve() / args.report)
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print(f"posemath_runtime=passed inputs={report['inputs']['file_count']} outputs={report['outputs']['file_count']}")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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