psu/cmd/configList.go

package cmd

import (
	"fmt"
	"sort"

	"github.com/spf13/viper"

	"github.com/spf13/cobra"
)

// configListCmd represents the list command
var configListCmd = &cobra.Command{
	Use:     "list",
	Short:   "List configs",
	Aliases: []string{"ls"},
	Run: func(cmd *cobra.Command, args []string) {
		// Get alphabetically ordered list of config keys
		keys := viper.AllKeys()
		sort.Slice(keys, func(i, j int) bool {
			return keys[i] < keys[j]
		})

		for _, key := range keys {
			if viper.GetBool("config.list.keys") {
				// List config key
				fmt.Println(key)
			} else {
				// List config key and value
				fmt.Printf("%s: %v\n", key, viper.Get(key))
			}
		}
	},
}

func init() {
	configCmd.AddCommand(configListCmd)

	configListCmd.Flags().Bool("keys", false, "Only list keys.")
	viper.BindPFlag("config.list.keys", configListCmd.Flags().Lookup("keys"))
}