github.com/zntrio/harp/v2@v2.0.9/pkg/template/engine/internal/codec/encoder.go (about)

     1  // Licensed to Elasticsearch B.V. under one or more contributor
     2  // license agreements. See the NOTICE file distributed with
     3  // this work for additional information regarding copyright
     4  // ownership. Elasticsearch B.V. licenses this file to you under
     5  // the Apache License, Version 2.0 (the "License"); you may
     6  // not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing,
    12  // software distributed under the License is distributed on an
    13  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    14  // KIND, either express or implied.  See the License for the
    15  // specific language governing permissions and limitations
    16  // under the License.
    17  
    18  package codec
    19  
    20  import (
    21  	"bytes"
    22  	"encoding/json"
    23  	"strings"
    24  
    25  	toml "github.com/pelletier/go-toml"
    26  	"sigs.k8s.io/yaml"
    27  )
    28  
    29  // ToYAML takes an interface, marshals it to yaml, and returns a string. It will
    30  // always return a string, even on marshal error (empty string).
    31  //
    32  // This is designed to be called from a template.
    33  func ToYAML(v interface{}) string {
    34  	data, err := yaml.Marshal(v)
    35  	if err != nil {
    36  		// Swallow errors inside of a template.
    37  		return ""
    38  	}
    39  	return strings.TrimSuffix(string(data), "\n")
    40  }
    41  
    42  // ToTOML takes an interface, marshals it to toml, and returns a string. It will
    43  // always return a string, even on marshal error (empty string).
    44  //
    45  // This is designed to be called from a template.
    46  func ToTOML(v interface{}) string {
    47  	b := bytes.NewBuffer(nil)
    48  	e := toml.NewEncoder(b)
    49  	err := e.Encode(v)
    50  	if err != nil {
    51  		return err.Error()
    52  	}
    53  	return b.String()
    54  }
    55  
    56  // ToJSON takes an interface, marshals it to json, and returns a string. It will
    57  // always return a string, even on marshal error (empty string).
    58  //
    59  // This is designed to be called from a template.
    60  func ToJSON(v interface{}) string {
    61  	data, err := json.Marshal(v)
    62  	if err != nil {
    63  		// Swallow errors inside of a template.
    64  		return ""
    65  	}
    66  	return string(data)
    67  }