@=jJ UdZddlmZddlmZeejjZda de d<ddZ dd Z dd Z ddZdS)upDetect when the gateway is running stale code after a hot ``git pull``. The gateway is a single long-lived process; its ``sys.modules`` is frozen at boot. If the checkout is updated underneath it (a manual ``git pull``, or the window before ``hermes update``'s graceful restart fires), a first-time lazy import on a new code path can resolve a freshly-pulled consumer module against a stale cached dependency -> ImportError (see ``tests/test_stale_utils_module_import.py`` for the exact failure). We snapshot the checkout revision at gateway startup and compare on demand, so risky callers (e.g. ``/model`` switching) can refuse with a clear "restart the gateway" message instead of crashing on a cryptic import error. If the revision can't be read (non-git install, IO error), the boot snapshot stays ``None`` and skew detection no-ops — it never produces a false positive. ) annotations)PathN str | None_boot_fingerprintreturncR ddlm}|tS#t$rYdSwxYw)zCurrent checkout fingerprint, reusing the CLI's git-rev reader. ``hermes_cli.main`` is always already imported in a gateway process (it's the entry point), so this import is free and avoids duplicating the worktree-aware ref resolution. r_read_git_revision_fingerprintN)hermes_cli.mainr _PROJECT_ROOT Exceptionr s 7/home/rurouni/.hermes/hermes-agent/gateway/code_skew.py _fingerprintrsLBBBBBB--m<<< tts  &&Nonec4ttadSdS)z?Snapshot the checkout revision at gateway startup (idempotent).N)rrrrecord_boot_fingerprintr)s" (NN! r fingerprintstrc|ddd}|r#|dkrt|dkr |ddS|p|S)z:`` fingerprint as a compact label.: unresolved N)rsplitlen)rshas r_shortr 0sT   S! $ $R (C sl""s3xx"}}3B3x  +rtuple[str, str] | NonectdSt}| |tkrdSttt|fS)zcReturn ``(boot_rev, disk_rev)`` short labels if the checkout drifted since boot, else ``None``.N)rrr )currents rdetect_code_skewr$8sG tnnG'%666t # $ $fWoo 55r)rr)rr)rrrr)rr!)__doc__ __future__rpathlibr__file__resolveparentr r__annotations__rrr r$rrrr,s"#"""""X&&((/6 $$$$$    ++++666666r