1
0
mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-12-23 01:39:44 +01:00
metamask-extension/app/scripts/migrations/018.js
Erik Marks 76a2a9bb8b
@metamask/eslint config@5.0.0 (#10358)
* @metamask/eslint-config@5.0.0
* Update eslintrc and prettierrc
* yarn lint:fix
2021-02-04 10:15:23 -08:00

56 lines
1.5 KiB
JavaScript

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