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metamask-extension/app/scripts/migrations/007.js
2017-04-26 21:05:45 -07:00

41 lines
878 B
JavaScript

const version = 7
/*
This migration breaks out the TransactionManager substate
*/
const extend = require('xtend')
const clone = require('clone')
module.exports = {
version,
migrate: function (originalVersionedData) {
const versionedData = clone(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 = extend(state, {
TransactionManager: {
transactions: state.transactions || [],
gasMultiplier: state.gasMultiplier || 1,
},
})
delete newState.transactions
delete newState.gasMultiplier
return newState
}