Files
ModelForge/scripts/m16_invariants.py
T

57 lines
1.9 KiB
Python

"""Run the M16 platform invariants against a ModelForge database and report each outcome.
Read-only. Used as a standalone operator check, and by the chaos harness before injection, after
injection and after recovery, so a scenario can prove it left no invariant broken.
python scripts/m16_invariants.py --database-url postgresql+psycopg://... [--json]
"""
from __future__ import annotations
import argparse
import json
import sys
from pathlib import Path
from sqlalchemy import create_engine
from sqlalchemy.orm import Session
sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "backend" / "src"))
from modelforge_api.services.invariants import ( # noqa: E402
InvariantStatus,
check_invariants,
)
from modelforge_api.settings import get_settings # noqa: E402
def main(argv: list[str] | None = None) -> int:
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--database-url", default=None)
parser.add_argument("--json", action="store_true", help="emit the full machine-readable report")
parser.add_argument("--label", default="invariants", help="label used in the human summary")
args = parser.parse_args(argv)
url = args.database_url or get_settings().database_url
engine = create_engine(url, pool_pre_ping=True)
try:
with Session(engine) as session:
report = check_invariants(session)
finally:
engine.dispose()
if args.json:
print(report.model_dump_json(indent=2))
else:
print(f"{args.label}: {report.holding}/{report.checked} hold, {report.violated} violated")
for item in report.results:
mark = "OK " if item.status is InvariantStatus.HOLDS else "FAIL"
print(f" {mark} {item.key:38} {item.detail}")
for example in item.violations:
print(f" - {example}")
return 0 if report.ok else 1
if __name__ == "__main__":
raise SystemExit(main())