81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
package db
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import (
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"fmt"
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"time"
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"github.com/dgraph-io/badger/v3"
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"github.com/wormhole-foundation/wormhole/sdk/vaa"
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)
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// This function deletes all VAAs for either the specified chain or specified chain / emitter address
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// that are older than the specified time. If the logOnly flag is specified, it does not delete anything,
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// just counts up what it would have deleted.
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func (d *Database) PurgeVaas(prefix VAAID, oldestTime time.Time, logOnly bool) (string, error) {
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if prefix.Sequence != 0 {
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return "", fmt.Errorf("may not specify a sequence number on the prefix")
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}
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numDeleted := 0
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numKept := 0
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if err := d.db.View(func(txn *badger.Txn) error {
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it := txn.NewIterator(badger.DefaultIteratorOptions)
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defer it.Close()
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prefix := prefix.EmitterPrefixBytes()
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for it.Seek(prefix); it.ValidForPrefix(prefix); it.Next() {
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item := it.Item()
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key := item.Key()
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err := item.Value(func(val []byte) error {
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v, err := vaa.Unmarshal(val)
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if err != nil {
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return fmt.Errorf("failed to unmarshal VAA for %s: %v", string(key), err)
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}
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if v.Timestamp.Before(oldestTime) {
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numDeleted++
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if !logOnly {
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if err := d.db.Update(func(txn *badger.Txn) error {
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err := txn.Delete(key)
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return err
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}); err != nil {
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return fmt.Errorf("failed to delete vaa for key [%v]: %w", key, err)
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}
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}
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} else {
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numKept++
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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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}
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return nil
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}); err != nil {
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return "", err
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}
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ret := ""
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if logOnly {
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ret = fmt.Sprintf("Would purge VAAs for chain %s older than %v.\n", prefix.EmitterChain, oldestTime.String())
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if numDeleted != 0 {
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ret += fmt.Sprintf("Would have deleted %v items and kept %v.", numDeleted, numKept)
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} else {
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ret += fmt.Sprintf("Would not have deleted anything and kept %v items", numKept)
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}
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} else {
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ret = fmt.Sprintf("Purging VAAs for chain %s older than %v.\n", prefix.EmitterChain, oldestTime.String())
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if numDeleted != 0 {
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ret += fmt.Sprintf("Deleted %v items and kept %v items", numDeleted, numKept)
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} else {
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ret += fmt.Sprintf("Did not delete anything, kept %v items", numKept)
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}
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}
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return ret, nil
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}
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