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tidy(config): use a type alias for the migration function

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psychedelicious 2024-04-23 17:21:05 +10:00
parent 6f128c86b4
commit 5d411e446a
1 changed files with 4 additions and 3 deletions
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7
invokeai/app/services/config/config_migrate.py
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@ -10,6 +10,7 @@ from typing import Any, Callable, List, TypeAlias
from packaging.version import Version
AppConfigDict: TypeAlias = dict[str, Any]
MigrationFunction: TypeAlias = Callable[[AppConfigDict], AppConfigDict]
@dataclass
@ -18,7 +19,7 @@ class MigrationEntry:
from_version: Version
to_version: Version
function: Callable[[AppConfigDict], AppConfigDict]
function: MigrationFunction
class ConfigMigrator:
@ -31,10 +32,10 @@ class ConfigMigrator:
cls,
from_version: str,
to_version: str,
) -> Callable[[Callable[[AppConfigDict], AppConfigDict]], Callable[[AppConfigDict], AppConfigDict]]:
) -> Callable[[MigrationFunction], MigrationFunction]:
"""Define a decorator which registers the migration between two versions."""
def decorator(function: Callable[[AppConfigDict], AppConfigDict]) -> Callable[[AppConfigDict], AppConfigDict]:
def decorator(function: MigrationFunction) -> MigrationFunction:
if from_version in cls._migrations:
raise ValueError(
f"function {function.__name__} is trying to register a migration for version {str(from_version)}, but this migration has already been registered."