spf13--viper/internal/encoding/hcl/codec.go
Mark Sagi-Kazar 4b307cc0f3 feat(encoding)!: accept a map in the encoder interface
This interface is specific to encoding data from Viper's internal,
so it's okay to make it Viper specific.

BREAKING CHANGE: the encoder interface now accepts a map instead of an interface

Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
2021-12-15 22:31:11 +01:00

40 lines
765 B
Go

package hcl
import (
"bytes"
"encoding/json"
"github.com/hashicorp/hcl"
"github.com/hashicorp/hcl/hcl/printer"
)
// Codec implements the encoding.Encoder and encoding.Decoder interfaces for HCL encoding.
// TODO: add printer config to the codec?
type Codec struct{}
func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
b, err := json.Marshal(v)
if err != nil {
return nil, err
}
// TODO: use printer.Format? Is the trailing newline an issue?
ast, err := hcl.Parse(string(b))
if err != nil {
return nil, err
}
var buf bytes.Buffer
err = printer.Fprint(&buf, ast.Node)
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func (Codec) Decode(b []byte, v map[string]interface{}) error {
return hcl.Unmarshal(b, &v)
}