new/clear-command (#8)

Reviewed-on: #8
Co-authored-by: jake <jake.young.dev@gmail.com>
Co-committed-by: jake <jake.young.dev@gmail.com>

cmd/clear.go

@@ -0,0 +1,43 @@
+/*
+Copyright © 2025 Jake jake.young.dev@gmail.com
+*/
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"code.jakeyoungdev.com/jake/mctl/models"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// clearCmd represents the clear command
+var clearCmd = &cobra.Command{
+	Use:   "clear",
+	Short: "Clear config file",
+	Long:  `Clears all configuration values for mctl, all server configuration will be lost`,
+	Run: func(cmd *cobra.Command, args []string) {
+		home, err := os.UserHomeDir()
+		cobra.CheckErr(err)
+
+		viper.AddConfigPath(home)
+		viper.SetConfigType("yaml")
+		viper.SetConfigName(".mctl")
+
+		err = viper.ReadInConfig()
+		if err == nil {
+			//clear values if file exists
+			for _, v := range models.ConfigFields {
+				viper.Set(v, "")
+			}
+			err := viper.WriteConfig()
+			cobra.CheckErr(err)
+			fmt.Println("Config file cleared, use 'config' command to re-populate it")
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(clearCmd)
+}

cmd/config.go

@@ -76,9 +76,8 @@ func initConfig() {
 	viper.SetConfigName(".mctl")
 	viper.AutomaticEnv()
 	err = viper.ReadInConfig()
-	cobra.CheckErr(err)
 
-	if err := viper.ReadInConfig(); err != nil {
+	if err != nil {
 		//file does not exist, create it
 		viper.Set("server", cfgserver)
 		viper.Set("password", "")