func upgrade2To3(db *bolt.DB) error {
fmt.Println("Upgrading v2 to v3...")
tx, err := db.Begin(true)
if err != nil {
return err
}
defer tx.Rollback()
fmt.Println("Upgrading bucket", string(logBucket))
lb := tx.Bucket(logBucket)
c := lb.Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
var delta proto.LogDelta
err := delta.Unmarshal(v)
if err != nil {
return err
}
delta.Quad.Upgrade()
data, err := delta.Marshal()
if err != nil {
return err
}
lb.Put(k, data)
}
if err := tx.Commit(); err != nil {
return err
}
tx, err = db.Begin(true)
if err != nil {
return err
}
defer tx.Rollback()
fmt.Println("Upgrading bucket", string(nodeBucket))
nb := tx.Bucket(nodeBucket)
c = nb.Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
var vd proto.NodeData
err := vd.Unmarshal(v)
if err != nil {
return err
}
vd.Upgrade()
data, err := vd.Marshal()
if err != nil {
return err
}
nb.Put(k, data)
}
if err := tx.Commit(); err != nil {
return err
}
return nil
}
