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metamask-extension/app/scripts/migrations/031.js

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// next version number
import { cloneDeep } from 'lodash';
const version = 31;
/*
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* The purpose of this migration is to properly set the completedOnboarding flag based on the state
* of the KeyringController.
*/
export default {
version,
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async migrate(originalVersionedData) {
const versionedData = cloneDeep(originalVersionedData);
versionedData.meta.version = version;
const state = versionedData.data;
const newState = transformState(state);
versionedData.data = newState;
return versionedData;
},
};
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function transformState(state) {
const { KeyringController, PreferencesController } = state;
if (KeyringController && PreferencesController) {
const { vault } = KeyringController;
PreferencesController.completedOnboarding = Boolean(vault);
}
return state;
}