add restart subcommand

cmd/restart.go

@@ -0,0 +1,64 @@
+/*
+Copyright © 2020 NAME HERE <EMAIL ADDRESS>
+
+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 (
+	"errors"
+	"fmt"
+	"github.com/mhewedy/vermin/vms"
+	"github.com/spf13/cobra"
+	"os"
+)
+
+// restartCmd represents the restart command
+var restartCmd = &cobra.Command{
+	Use:   "restart",
+	Short: "Restart one or more VMs",
+	Long:  `Restart one or more VMs`,
+	Run: func(cmd *cobra.Command, args []string) {
+		for _, vmName := range args {
+			if err := vms.Stop(vmName); err != nil {
+				fmt.Println(err)
+				os.Exit(1)
+			}
+			if err := vms.Start(vmName); err != nil {
+				fmt.Println(err)
+				os.Exit(1)
+			}
+		}
+	},
+	Args: func(cmd *cobra.Command, args []string) error {
+		if len(args) < 1 {
+			return errors.New("vm required")
+		}
+		return nil
+	},
+	ValidArgsFunction: listStoppedVms,
+}
+
+func init() {
+	rootCmd.AddCommand(restartCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// restartCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	//restartCmd.Flags().BoolP("purge", "p", false, "Purge the IP cache")
+}