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metamask-extension/app/scripts/migrations/020.js
2017-11-29 11:51:27 -08:00

42 lines
906 B
JavaScript

const version = 20
/*
This migration ensures previous installations
get a `firstTimeInfo` key on the metamask state,
so that we can version notices in the future.
*/
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 = state
if ('metamask' in newState &&
!('firstTimeInfo' in newState.metamask)) {
newState.metamask.firstTimeInfo = {
version: '3.12.0',
date: Date.now(),
}
}
return newState
}