const version = 8 /* This migration breaks out the NoticeController substate */ const extend = require('xtend') module.exports = { version, migrate: function (versionedData) { 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 = extend(state, { NoticeController: { noticesList: state.noticesList || [], }, }) delete newState.noticesList return newState }