Optimise ListRaw for S3-KMS backend (#296)

Co-authored-by: Nick Irvine <[email protected]>

store/s3storeKMS.go

@@ -188,18 +188,21 @@ func (s *S3KMSStore) List(service string, includeValues bool) ([]Secret, error)
  return secrets, nil
 }
 
+// ListRaw returns RawSecrets by extracting them from the index file. It only ever uses the 
+// index file; it never consults the actual secrets, so if the index file is out of sync, these
+// results will reflect that.
 func (s *S3KMSStore) ListRaw(service string) ([]RawSecret, error) {
-
- secretList, err := s.List(service, true)
+ index, err := s.readLatest(service)
  if err != nil {
  return []RawSecret{}, err
  }
 
+ // Read raw secrets directly from the index file (which caches the latest values)
  secrets := []RawSecret{}
- for _, secret := range secretList {
+ for key := range index.Latest {
  s := RawSecret{
- Key: fmt.Sprintf("/%s/%s", service, secret.Meta.Key),
- Value: *secret.Value,
+ Key: fmt.Sprintf("/%s/%s", service, key),
+ Value: index.Latest[key].Value,
  }
  secrets = append(secrets, s)
  }