21 lines
560 B
Python
21 lines
560 B
Python
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import sys
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LATEST_SCHEMA_VERSION = 1 # type: int
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def migrate_0_to_1(data: dict) -> dict:
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data["schema_version"] = 1
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return data
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def migrate_to(data: dict, version: int) -> dict:
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current = data.get("schema_version", 0)
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if current > version:
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raise Exception(
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f"Current schema version ({current}) is newer than target schema version ({version})"
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)
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for i in range(current, version):
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migrate_fn = getattr(sys.modules[__name__], f"migrate_{i}_to_{i + 1}")
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data = migrate_fn(data)
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return data
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