Specific error code for failed-initialization of inventory

Author: cmaglie

Diff for: internal/cli/cli.go

@@ -150,7 +150,7 @@ func preRun(cmd *cobra.Command, args []string) {
 	// initialize inventory
 	err := inventory.Init(configuration.DataDir(configuration.Settings).String())
 	if err != nil {
-		feedback.Fatal(fmt.Sprintf("Error: %v", err), feedback.ErrBadArgument)
+		feedback.Fatal(fmt.Sprintf("Error: %v", err), feedback.ErrInitializingInventory)
 	}
 
 	// https://no-color.org/

Diff for: internal/cli/feedback/errorcodes.go

@@ -42,4 +42,8 @@ const (
 
 	// ErrBadArgument is returned when the arguments are not valid (7)
 	ErrBadArgument
+
+	// ErrInitializingInventory is returned when the inventory cannot be initialized,
+	// usually depends on a wrong configuration of the data dir (8)
+	ErrInitializingInventory
 )