1 package hcl

     2 

     3 import (

     4 	"bytes"

     5 	"encoding/json"

     6 

     7 	"github.com/hashicorp/hcl"

     8 	"github.com/hashicorp/hcl/hcl/printer"

     9 )

    10 

    11 // Codec implements the encoding.Encoder and encoding.Decoder interfaces for HCL encoding.

    12 // TODO: add printer config to the codec?

    13 type Codec struct{}

    14 

    15 func (Codec) Encode(v map[string]interface{}) ([]byte, error) {

    16 	b, err := json.Marshal(v)

    17 	if err != nil {

    18 		return nil, err

    19 	}

    20 

    21 	// TODO: use printer.Format? Is the trailing newline an issue?

    22 

    23 	ast, err := hcl.Parse(string(b))

    24 	if err != nil {

    25 		return nil, err

    26 	}

    27 

    28 	var buf bytes.Buffer

    29 

    30 	err = printer.Fprint(&buf, ast.Node)

    31 	if err != nil {

    32 		return nil, err

    33 	}

    34 

    35 	return buf.Bytes(), nil

    36 }

    37 

    38 func (Codec) Decode(b []byte, v map[string]interface{}) error {

    39 	return hcl.Unmarshal(b, &v)

    40 }