8ab24726fe
Adds a Freezer ABC (backend/freeze.py) that encapsulates the
stop-commit-mark-preserved flow for all backends, following the same
pattern as BottleBackend. Each backend gets its own Freezer subclass:
DockerFreezer — docker commit
MacosContainerFreezer — container export + image rebuild; prompts
to stop if the container is running
SmolmachinesFreezer — smolvm pack create --from-vm
The base class owns write_committed_image, mark_preserved, and the
resume hint. Subclasses implement _freeze() and optionally override
_export_hint() for migration instructions.
Freezer.commit(agent, bottle) is the primary entry point for use
within a live launch context. Freezer.commit_slug(slug) is a
convenience wrapper for cmd_commit, which no longer branches on
backend names itself.
get_freezer(backend_name) is the factory, analogous to
get_bottle_backend(). CommitCancelled is raised by MacosContainerFreezer
when the user declines the stop prompt; cmd_commit catches it and
returns 0.
26 lines
922 B
Python
26 lines
922 B
Python
"""SmolmachinesFreezer — snapshot a smolmachines bottle via smolvm pack."""
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from __future__ import annotations
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from .. import ActiveAgent, Bottle
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from ..freeze import Freezer
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from .smolvm import pack_create_from_vm
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from ...bottle_state import bottle_state_dir
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from ...log import info
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class SmolmachinesFreezer(Freezer):
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"""Freezes a smolmachines bottle via `smolvm pack create --from-vm`."""
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backend_name = "smolmachines"
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def _freeze(self, agent: ActiveAgent, bottle: Bottle) -> str:
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output = bottle_state_dir(agent.slug) / "committed-smolmachine"
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output.parent.mkdir(parents=True, exist_ok=True)
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pack_create_from_vm(bottle.name, output)
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artifact = output.with_name(f"{output.name}.smolmachine")
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return str(artifact)
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def _export_hint(self, slug: str, image_ref: str) -> None:
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info(f"to export for migration: cp {image_ref} {slug}.smolmachine")
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