daniel156161
c646392b84
- Preserve snake customizations across database migrations and merges. - Lazily load optional storage backends for SQLite maintenance scripts. - Match Apex territory and nearest-food tie-breaking semantics. - Resolve duel occupancy after simultaneous movement and food growth. - Recompute simulated head-to-head danger after body growth. - Add regression coverage and declare the aiofiles dependency.
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
from typing import TYPE_CHECKING, Any
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from .GameplayDatabase import GameplayDatabase
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from .backend import GameplayBackendBuilder
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if TYPE_CHECKING:
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from .EdgeDB import EdgeDB
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from .LocalStorage import LocalStorage
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__all__ = (
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"EdgeDB",
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"GameplayBackendBuilder",
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"GameplayDatabase",
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"LocalStorage",
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"StorageLoader",
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)
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def __getattr__(name:str):
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"""Load optional storage backends only when explicitly requested.
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Database maintenance scripts import SQLite backend modules through this
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package. Eagerly importing LocalStorage used to make those scripts require
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unrelated web-storage dependencies such as aiofiles.
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"""
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if name == "LocalStorage":
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from .LocalStorage import LocalStorage
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return LocalStorage
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if name == "EdgeDB":
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from .EdgeDB import EdgeDB
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return EdgeDB
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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class StorageLoader:
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@classmethod
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def build(cls, selected_storage:str) -> Any:
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storage_module = __import__(
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f"server.database.{selected_storage}", fromlist=[selected_storage],
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)
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storage_class = getattr(storage_module, selected_storage)
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return storage_class
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