prepareSingleStoreMigrationSnapshot() — drizzle-orm Function Reference

Source Code

drizzle-kit/src/migrationPreparator.ts lines 109–135

export const prepareSingleStoreMigrationSnapshot = async (
	migrationFolders: string[],
	schemaPath: string | string[],
	casing: CasingType | undefined,
): Promise<{ prev: SingleStoreSchema; cur: SingleStoreSchema; custom: SingleStoreSchema }> => {
	const prevSnapshot = singlestoreSchema.parse(
		preparePrevSnapshot(migrationFolders, drySingleStore),
	);
	const serialized = await serializeSingleStore(schemaPath, casing);

	const id = randomUUID();
	const idPrev = prevSnapshot.id;

	const { version, dialect, ...rest } = serialized;
	const result: SingleStoreSchema = { version, dialect, id, prevId: idPrev, ...rest };

	const { id: _ignoredId, prevId: _ignoredPrevId, ...prevRest } = prevSnapshot;

	// that's for custom migrations, when we need new IDs, but old snapshot
	const custom: SingleStoreSchema = {
		id,
		prevId: idPrev,
		...prevRest,
	};

	return { prev: prevSnapshot, cur: result, custom };
};