#!/usr/bin/python3 -I
"""Independent trusted updater launcher; does not import the mutable runtime."""
from pathlib import Path
import runpy

path = Path(__file__).resolve()
if path.parent == Path('/usr/bin'):
    engine = Path('/usr/lib/hydra-update/engine.py')
else:
    # Source checkout only. Installed launchers never fall back to mutable code.
    engine = path.parent.parent / 'hydra/update_engine.py'
raise SystemExit(runpy.run_path(str(engine))['main']())