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bot-bottle/bot_bottle/backend/smolmachines/backend.py
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refactor(backend): pass Bottle to provisioners instead of target string
Closes #178.

The backend provision functions now receive a Bottle handle with
exec / cp_in methods instead of a raw target string. Provisioner
modules use bottle.exec and bottle.cp_in in place of inlined
subprocess.run(["docker", "exec"/"cp", ...]) and direct
_smolvm.machine_cp / machine_exec calls. This decouples the
provisioners from backend-specific runtime primitives so future
refactors (e.g. the supervise rework) can swap the bottle's exec
implementation without touching every provisioner.

Each launch.py constructs the Bottle handle before calling
provision so it can be passed in; provision_prompt's return value
is wired back onto the bottle's prompt path attribute after the
fact.
2026-06-03 20:47:37 +00:00

99 lines
3.2 KiB
Python

"""SmolmachinesBottleBackend — the smolmachines implementation of
BottleBackend (PRD 0023)."""
from __future__ import annotations
from contextlib import contextmanager
from pathlib import Path
from typing import Generator, Sequence
from .. import ActiveAgent, Bottle, BottleBackend, BottleSpec
from . import cleanup as _cleanup
from . import enumerate as _enumerate
from . import launch as _launch
from . import prepare as _prepare
from . import smolvm as _smolvm
from .bottle import SmolmachinesBottle
from .bottle_cleanup_plan import SmolmachinesBottleCleanupPlan
from .bottle_plan import SmolmachinesBottlePlan
from .provision import ca as _ca
from .provision import git as _git
from .provision import prompt as _prompt
from .provision import provider_auth as _provider_auth
from .provision import skills as _skills
from .provision import supervise as _supervise
from .provision import workspace as _workspace
class SmolmachinesBottleBackend(
BottleBackend["SmolmachinesBottlePlan", "SmolmachinesBottleCleanupPlan"]
):
"""smolmachines backend. Selected by
`BOT_BOTTLE_BACKEND=smolmachines`."""
name = "smolmachines"
@classmethod
def is_available(cls) -> bool:
"""`smolvm` on PATH. The backend additionally needs macOS
for libkrun + TSI, but `enumerate_active` / `cleanup` are
host-shell ops that gracefully no-op on Linux too — the
runtime check happens at `prepare`."""
return _smolvm.is_available()
def _resolve_plan(
self, spec: BottleSpec, *, stage_dir: Path
) -> SmolmachinesBottlePlan:
return _prepare.resolve_plan(spec, stage_dir=stage_dir)
@contextmanager
def launch(
self, plan: SmolmachinesBottlePlan
) -> Generator[SmolmachinesBottle, None, None]:
with _launch.launch(plan, provision=self.provision) as bottle:
yield bottle
def provision_ca(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_ca.provision_ca(plan, bottle)
def provision_prompt(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> str | None:
return _prompt.provision_prompt(plan, bottle)
def provision_provider_auth(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_provider_auth.provision_provider_auth(plan, bottle)
def provision_skills(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_skills.provision_skills(plan, bottle)
def provision_workspace(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_workspace.provision_workspace(plan, bottle)
def provision_git(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_git.provision_git(plan, bottle)
def provision_supervise(
self, plan: SmolmachinesBottlePlan, bottle: Bottle
) -> None:
_supervise.provision_supervise(plan, bottle)
def prepare_cleanup(self) -> SmolmachinesBottleCleanupPlan:
return _cleanup.prepare_cleanup()
def cleanup(self, plan: SmolmachinesBottleCleanupPlan) -> None:
_cleanup.cleanup(plan)
def enumerate_active(self) -> Sequence[ActiveAgent]:
return _enumerate.enumerate_active()