75 lines
1.6 KiB
Go
75 lines
1.6 KiB
Go
package migration12
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import (
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"bytes"
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lnwire "github.com/lightningnetwork/lnd/channeldb/migration/lnwire21"
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"github.com/lightningnetwork/lnd/kvdb"
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)
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var emptyFeatures = lnwire.NewFeatureVector(nil, nil)
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// MigrateInvoiceTLV migrates all existing invoice bodies over to be serialized
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// in a single TLV stream. In the process, we drop the Receipt field and add
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// PaymentAddr and Features to the invoice Terms.
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func MigrateInvoiceTLV(tx kvdb.RwTx) error {
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log.Infof("Migrating invoice bodies to TLV, " +
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"adding payment addresses and feature vectors.")
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invoiceB := tx.ReadWriteBucket(invoiceBucket)
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if invoiceB == nil {
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return nil
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}
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type keyedInvoice struct {
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key []byte
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invoice Invoice
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}
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// Read in all existing invoices using the old format.
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var invoices []keyedInvoice
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err := invoiceB.ForEach(func(k, v []byte) error {
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if v == nil {
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return nil
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}
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invoiceReader := bytes.NewReader(v)
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invoice, err := LegacyDeserializeInvoice(invoiceReader)
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if err != nil {
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return err
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}
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// Insert an empty feature vector on all old payments.
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invoice.Terms.Features = emptyFeatures
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invoices = append(invoices, keyedInvoice{
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key: k,
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invoice: invoice,
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})
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return nil
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})
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if err != nil {
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return err
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}
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// Write out each one under its original key using TLV.
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for _, ki := range invoices {
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var b bytes.Buffer
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err = SerializeInvoice(&b, &ki.invoice)
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if err != nil {
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return err
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}
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err = invoiceB.Put(ki.key, b.Bytes())
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if err != nil {
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return err
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}
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}
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log.Infof("Migration to TLV invoice bodies, " +
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"payment address, and features complete!")
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return nil
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}
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