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bot-bottle/bot_bottle/backend/__init__.py
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Merge main into fix/db-off-data-plane-469
Brings in main's 8 commits — #470 (backend-agnostic CI guards: BackendStatus
enum, quiet status(), is_backend_available/is_backend_ready, tests/_backend.py
skip_unless_backend) plus firecracker status() readiness checks (kvm/kernel/
dropbear/mke2fs).

Reconciled #470's additions into the reorg'd backend structure:
  * BackendStatus enum + the status(*, quiet=) ABC signature -> backend/base.py
  * is_backend_available / is_backend_ready -> backend/selection.py
  * exposed all three through the lazy backend facade (__init__).
Integration-test conflicts were our control_plane->orchestrator renames vs
main's skip_unless_docker -> skip_unless_backend swap: kept our refactored
import paths + main's guard. Repointed main's new is_backend_* tests to patch
selection._backends (our moved home) instead of the facade.

pyright: 0 errors. Full unit suite green (2272).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-24 21:35:58 -04:00

116 lines
3.6 KiB
Python

"""The bottle-backend package: abstract contract + backend selection.
Thin by design — nothing framework-heavy is imported at package init, so
importing any `backend.*` submodule (e.g. `backend.docker.util`) doesn't drag
the manifest / egress / git-gate framework into memory. The public names are
re-exported lazily:
* the abstract contract (`BottleBackend`, `BottleSpec`, `Bottle`, …) lives in
`backend.base`;
* backend selection / enumeration (`get_bottle_backend`,
`enumerate_active_agents`, …) in `backend.selection`;
* the concrete backends and the freeze helpers in their own submodules.
`from bot_bottle.backend import X` resolves X on first access via `__getattr__`
and caches it at package level, so existing call-sites (and
`patch.object(backend_mod, X, …)`) keep working.
"""
from __future__ import annotations
from typing import TYPE_CHECKING, Any
if TYPE_CHECKING:
from .base import (
ActiveAgent,
BackendStatus,
Bottle,
BottleBackend,
BottleCleanupPlan,
BottleImages,
BottlePlan,
BottleSpec,
ExecResult,
)
from .selection import (
enumerate_active_agents,
get_bottle_backend,
has_backend,
is_backend_available,
is_backend_ready,
known_backend_names,
)
from .docker import DockerBottleBackend
from .firecracker import FirecrackerBottleBackend
from .macos_container import MacosContainerBottleBackend
from .freeze import CommitCancelled, Freezer, get_freezer
# Public name -> submodule that defines it. Contract types resolve from `base`,
# selection/enumeration from `selection`, the concrete backends + freeze helpers
# from their own subpackages.
_LAZY_MODULES: dict[str, str] = {
"BottleSpec": "base",
"BottlePlan": "base",
"BottleCleanupPlan": "base",
"ExecResult": "base",
"ActiveAgent": "base",
"Bottle": "base",
"BottleImages": "base",
"BottleBackend": "base",
"BackendStatus": "base",
"get_bottle_backend": "selection",
"known_backend_names": "selection",
"has_backend": "selection",
"is_backend_available": "selection",
"is_backend_ready": "selection",
"enumerate_active_agents": "selection",
"_print_vm_install_instructions": "selection",
"DockerBottleBackend": "docker",
"FirecrackerBottleBackend": "firecracker",
"MacosContainerBottleBackend": "macos_container",
"CommitCancelled": "freeze",
"Freezer": "freeze",
"get_freezer": "freeze",
}
def __getattr__(name: str) -> Any:
"""Lazily surface the package's public names from their submodules and
cache them at package level — so `from bot_bottle.backend import X` and
`patch.object(backend_mod, X, …)` keep working without importing the
framework (or every backend) at package-init time."""
mod = _LAZY_MODULES.get(name)
if mod is None:
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
from importlib import import_module
value = getattr(import_module(f"{__name__}.{mod}"), name)
globals()[name] = value
return value
__all__ = [
"ActiveAgent",
"BackendStatus",
"Bottle",
"BottleBackend",
"BottleCleanupPlan",
"BottleImages",
"BottlePlan",
"BottleSpec",
"ExecResult",
"CommitCancelled",
"Freezer",
"get_freezer",
"DockerBottleBackend",
"FirecrackerBottleBackend",
"MacosContainerBottleBackend",
"enumerate_active_agents",
"get_bottle_backend",
"has_backend",
"is_backend_available",
"is_backend_ready",
"known_backend_names",
]