yq/pkg/yqlib/encoder_base64.go
Mike Farah 66ab916c6b wip
2023-04-08 19:56:35 +10:00

37 lines
914 B
Go

package yqlib
import (
"encoding/base64"
"fmt"
"io"
)
type base64Encoder struct {
encoding base64.Encoding
}
func NewBase64Encoder() Encoder {
return &base64Encoder{encoding: *base64.StdEncoding}
}
func (e *base64Encoder) CanHandleAliases() bool {
return false
}
func (e *base64Encoder) PrintDocumentSeparator(writer io.Writer) error {
return nil
}
func (e *base64Encoder) PrintLeadingContent(writer io.Writer, content string) error {
return nil
}
func (e *base64Encoder) Encode(writer io.Writer, originalNode *CandidateNode) error {
node := originalNode.unwrapDocument()
if node.guessTagFromCustomType() != "!!str" {
return fmt.Errorf("cannot encode %v as base64, can only operate on strings. Please first pipe through another encoding operator to convert the value to a string", node.Tag)
}
_, err := writer.Write([]byte(e.encoding.EncodeToString([]byte(originalNode.Value))))
return err
}