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55 lines
1.5 KiB
55 lines
1.5 KiB
/*
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This migration updates "transaction state history" to diffs style
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*/
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import { cloneDeep } from 'lodash';
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import {
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snapshotFromTxMeta,
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migrateFromSnapshotsToDiffs,
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} from '../controllers/transactions/lib/tx-state-history-helpers';
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const version = 18;
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export default {
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version,
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migrate(originalVersionedData) {
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const versionedData = cloneDeep(originalVersionedData);
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versionedData.meta.version = version;
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try {
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const state = versionedData.data;
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const newState = transformState(state);
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versionedData.data = newState;
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} catch (err) {
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console.warn(`MetaMask Migration #${version}${err.stack}`);
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}
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return Promise.resolve(versionedData);
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},
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};
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function transformState(state) {
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const newState = state;
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const { TransactionController } = newState;
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if (TransactionController && TransactionController.transactions) {
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const { transactions } = newState.TransactionController;
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newState.TransactionController.transactions = transactions.map((txMeta) => {
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// no history: initialize
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if (!txMeta.history || txMeta.history.length === 0) {
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const snapshot = snapshotFromTxMeta(txMeta);
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txMeta.history = [snapshot];
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return txMeta;
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}
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// has history: migrate
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const newHistory = migrateFromSnapshotsToDiffs(txMeta.history)
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// remove empty diffs
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.filter((entry) => {
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return !Array.isArray(entry) || entry.length > 0;
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});
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txMeta.history = newHistory;
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return txMeta;
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});
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}
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return newState;
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}
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