feat: update use

cmd/root.go

@@ -35,9 +35,9 @@ var rootCmd = &cobra.Command{
 	Long:  `kubecm manager multi kube config file`,
 	// Uncomment the following line if your bare application
 	// has an action associated with it:
-	Run: func(cmd *cobra.Command, args []string) {
-		listCmd.Run(cmd, args)
-	},
+	// Run: func(cmd *cobra.Command, args []string) {
+	// listCmd.Run(cmd, args)
+	//},
 }
 
 // Execute adds all child commands to the root command and sets flags appropriately.

pkg/manager/manager.go

@@ -185,6 +185,7 @@ func (i *impl) Use(name string, currentSession bool) error {
 	item := i.conf.Items[index]
 	if currentSession {
 		_ = os.Setenv("KUBECONFIG", item.Location)
+		_ = os.Setenv("KUBECM_SHELL", "true")
 		shell := os.Getenv("SHELL")
 		cmd := exec.Command(shell)
 		cmd.Stdin = os.Stdin
@@ -193,6 +194,11 @@ func (i *impl) Use(name string, currentSession bool) error {
 		return cmd.Run()
 	}
 
+	if os.Getenv("KUBECM_SHELL") == "true" && os.Getenv("KUBECONFIG") != "" {
+		fmt.Printf("You can't change system kubeconfig after use `kubecm use xxx -c`. \nPlease execute cmd `exit && kubecm use %s` \n", name)
+		return nil
+	}
+
 	// create symbolic link from config file to kube config file
 	kubefile, err := os.Lstat(i.kubePath)
 	if err != nil && !os.IsNotExist(err) {