checkpoint: define top level flag for config dir

cmd/enbas/flags.go

@@ -15,3 +15,7 @@ func (a *accountNames) Set(value string) error {
 
 	return nil
 }
+
+type topLevelFlags struct {
+	configDir string
+}

cmd/enbas/main.go

@@ -88,6 +88,10 @@ func run() error {
 		unblock:        "unblock a resource (e.g. an account)",
 	}
 
+	globals := topLevelFlags{}
+
+	flag.StringVar(&globals.configDir, "config-dir", "", "specify your config directory")
+
 	flag.Usage = enbasUsageFunc(summaries)
 
 	flag.Parse()
@@ -119,7 +123,7 @@ func run() error {
 	case updateResource:
 		executor = newUpdateCommand(updateResource, summaries[updateResource])
 	case whoami:
-		executor = newWhoAmICommand(whoami, summaries[whoami])
+		executor = newWhoAmICommand(globals, whoami, summaries[whoami])
 	case add:
 		executor = newAddCommand(add, summaries[add])
 	case remove:

cmd/enbas/whoami.go

@@ -9,11 +9,14 @@ import (
 
 type whoAmICommand struct {
 	*flag.FlagSet
+
+	globals topLevelFlags
 }
 
-func newWhoAmICommand(name, summary string) *whoAmICommand {
+func newWhoAmICommand(globals topLevelFlags, name, summary string) *whoAmICommand {
 	command := whoAmICommand{
 		FlagSet: flag.NewFlagSet(name, flag.ExitOnError),
+		globals: globals,
 	}
 
 	command.Usage = commandUsageFunc(name, summary, command.FlagSet)