AppHarbor.Command.WriteUsage C# (CSharp) Method

        public void WriteUsage(string invokedWith, TextWriter writer)
        {
            var commandHelpAttribute = this.GetType().GetCustomAttributes(true).OfType<CommandHelpAttribute>().Single();
            writer.WriteLine("Command description: {0}", commandHelpAttribute.Description);
            writer.WriteLine();

            writer.WriteLine("Expected usage: appharbor {0} {1} [OPTIONS]",
                invokedWith,
                commandHelpAttribute.Options);

            writer.WriteLine("Available options:");
            OptionSet.WriteOptionDescriptions(writer);
        }