Update release with -r and -d flags

cmd/root.go

@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	gVersion = "0.42b"
+	gVersion = "0.42c"
 	
 	// TODO : Get from $jail_zpool/defaults.json
 	MIN_DYN_DEVFS_RULESET = 1000
@@ -68,6 +68,8 @@ var (
 	gFetchIntoDS     string
 	gFetchFrom       string
 	gUpgradeRelease  string
+	gUpdateRelease   string
+	gUpdateReleaseDS string
 
 	// For a based jail, these are directories binded to basejail
 	gBaseDirs = []string{"bin", "boot", "lib", "libexec", "rescue", "sbin", "usr/bin", "usr/include",
@@ -422,10 +424,14 @@ func init() {
 	upgradeCmd.Flags().StringVarP(&gUpgradeRelease, "release", "r", "", "Release to upgrade to (e.g.: \"13.1-RELEASE\"")
 	upgradeCmd.MarkFlagRequired("release")
 
+	updateCmd.Flags().StringVarP(&gUpdateRelease, "release", "r", "", "Release to update (e.g.: \"13.1-RELEASE\"")
+	updateCmd.Flags().StringVarP(&gUpdateReleaseDS, "datastore", "d", "", "Datastore release is stored on")
+	updateCmd.MarkFlagsRequiredTogether("release", "datastore")
+
 	createCmd.Flags().StringVarP(&gCreateArgs.Release, "release", "r", "", "Release for the jail (e.g.: \"13.1-RELEASE\"")
 	createCmd.Flags().BoolVarP(&gCreateArgs.BaseJail, "basejail", "b", false, "Basejail. This will create a jail mounted read only from a release, so every up(date|grade) made to this release will immediately propagate to new jail.\n")
 	createCmd.Flags().StringVarP(&gCreateArgs.Datastore, "datastore", "d", "", "Datastore to create the jail on. Defaults to first declared in config.")
-	createCmd.Flags().StringVarP(&gCreateArgs.Properties, "configuration", "p", "", "Configuration properties with format k1=v1,k2=v2 (Ex: \"Config.Ip4_addr='vnet0|192.168.1.2',Config.Ip6=none\")")
+	createCmd.Flags().StringVarP(&gCreateArgs.Properties, "configuration", "p", "", "Configuration properties with format k1=v1,k2=v2 (Ex: \"Config.Ip4_addr=vnet0|192.168.1.2,Config.Ip6=none\")")
 
 	// Now declare commands
 	rootCmd.AddCommand(initCmd)