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config.go
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config.go
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// Copyright © 2019 Lucas dos Santos Abreu <lucas.s.abreu@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"encoding/json"
"errors"
"fmt"
"strings"
"github.com/spf13/viper"
"gopkg.in/yaml.v2"
"github.com/spf13/cobra"
)
const FORMAT_YAML = "yaml"
const FORMAT_JSON = "json"
// configCmd represents the config command
var configCmd = &cobra.Command{
Use: "config [config-name]",
Short: "Manages configuration file parameters",
Args: cobra.MaximumNArgs(1),
Run: func(cmd *cobra.Command, args []string) {
format, _ := cmd.Flags().GetString("format")
var b []byte
var v interface{}
if len(args) == 0 {
v = viper.AllSettings()
} else {
v = viper.Get(args[0])
}
format = strings.ToLower(format)
switch format {
case FORMAT_JSON:
b, _ = json.Marshal(v)
case FORMAT_YAML:
b, _ = yaml.Marshal(v)
default:
printError(errors.New("invalid format"))
return
}
fmt.Println(string(b))
},
}
func init() {
rootCmd.AddCommand(configCmd)
configCmd.Flags().StringP("format", "f", FORMAT_YAML, fmt.Sprintf("format of the output can be one of: %s, %s", FORMAT_YAML, FORMAT_JSON))
}