commands: Added Argument helper constructors

commands/argument.go

@@ -14,3 +14,23 @@ type Argument struct {
 	Variadic    bool
 	Description string
 }
+
+func StringArg(name string, required, variadic bool, description string) Argument {
+	return Argument{
+		Name:        name,
+		Type:        ArgString,
+		Required:    required,
+		Variadic:    variadic,
+		Description: description,
+	}
+}
+
+func FileArg(name string, required, variadic bool, description string) Argument {
+	return Argument{
+		Name:        name,
+		Type:        ArgFile,
+		Required:    required,
+		Variadic:    variadic,
+		Description: description,
+	}
+}