Mount local FS; get struct pointer so we can modify values

cmd/root.go

@@ -3,14 +3,16 @@ package cmd
 import (
 	"os"
 	"fmt"
+	"strconv"
 	"strings"
+	"encoding/json"
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
 
 const (
-	version = "0.02"
+	gVersion = "0.022a"
 )
 
 var (
@@ -24,6 +26,8 @@ var (
 	gSortFields		string
 	gNoLineSep		bool
 
+	gHostVersion	float64
+
 
 	rootCmd = & cobra.Command{
     	Use:    "gocage",
@@ -33,6 +37,7 @@ It support iocage jails and can coexist with iocage.`,
 
 	    Run: func(cmd *cobra.Command, args []string) {
 	        fmt.Println("Here we are in the Run")
+			cleanAfterRun()
 	    },
 	}
 
@@ -41,7 +46,8 @@ It support iocage jails and can coexist with iocage.`,
 	    Short: "Print the version number of GoCage",
 	    Long:  `Let this show you how much fail I had to get this *cough* perfect`,
 	    Run: func(cmd *cobra.Command, args []string) {
-	        fmt.Printf("GoCage v.%s\n", version)
+	        fmt.Printf("GoCage v.%s on FreeBSD %.1f\n", gVersion, gHostVersion)
+			cleanAfterRun()
 	    },
 	}
 
@@ -53,6 +59,7 @@ Jail list can be restricted by adding name on command line
 ex: gocage list srv-db srv-web`,
 		Run: func(cmd *cobra.Command, args []string) {
 			ListJails(args, true)
+			cleanAfterRun()
 		},
 	}
 	
@@ -64,6 +71,7 @@ ex: gocage list srv-db srv-web`,
 			// Get the inventory
 			ListJails(args, false)
 			StopJail(args)
+			cleanAfterRun()
 		},
 	}
 
@@ -74,6 +82,7 @@ ex: gocage list srv-db srv-web`,
 			// Get the inventory
 			ListJails(args, false)
 			StartJail(args)
+			cleanAfterRun()
 		},
 	}
 )
@@ -98,6 +107,15 @@ func init() {
     rootCmd.AddCommand(listCmd)
     rootCmd.AddCommand(stopCmd)
     rootCmd.AddCommand(startCmd)
+
+	// Get FreeBSD version
+	out, err := executeCommand("freebsd-version")
+	if err != nil {
+		fmt.Printf("Error running \"freebsd-version\": %s", err.Error())
+		os.Exit(1)
+	}
+	gHostVersion, _ = strconv.ParseFloat(strings.Split(out, "-")[0], 32)
+
 }
 
 func initConfig() {
@@ -141,6 +159,21 @@ func initConfig() {
 	}
 }
 
+// Called after execution
+func cleanAfterRun() {
+	for _, j := range gJails {
+		if j.ConfigUpdated {
+			// TODO : Marshall to disk
+			fmt.Printf("Config for jail %s will be updated\n", j.Name)
+			marshaled, err := json.MarshalIndent(j.Config, "", "    ")
+			if err != nil {
+				fmt.Printf("ERROR marshaling config: %s\n", err.Error())
+			}
+			fmt.Printf(string(marshaled))
+		}
+	}
+}
+
 func Execute() {
     if err := rootCmd.Execute(); err != nil {
         fmt.Fprintln(os.Stderr, err)