55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
|
|
const version = 23
|
|
|
|
/*
|
|
|
|
This migration removes transactions that are no longer usefull down to 40 total
|
|
|
|
*/
|
|
|
|
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
|
|
|
|
const { TransactionController } = newState
|
|
if (TransactionController && TransactionController.transactions) {
|
|
const transactions = newState.TransactionController.transactions
|
|
|
|
if (transactions.length <= 40) return newState
|
|
|
|
let reverseTxList = transactions.reverse()
|
|
let stripping = true
|
|
while (reverseTxList.length > 40 && stripping) {
|
|
let txIndex = reverseTxList.findIndex((txMeta) => {
|
|
return (txMeta.status === 'failed' ||
|
|
txMeta.status === 'rejected' ||
|
|
txMeta.status === 'confirmed' ||
|
|
txMeta.status === 'dropped')
|
|
})
|
|
if (txIndex < 0) stripping = false
|
|
else reverseTxList.splice(txIndex, 1)
|
|
}
|
|
|
|
newState.TransactionController.transactions = reverseTxList.reverse()
|
|
}
|
|
return newState
|
|
}
|