AppHarbor.Commands.HelpCommand.InnerExecute C# (CSharp) Method

        protected override void InnerExecute(string[] arguments)
        {
            _writer.WriteLine("Usage: appharbor COMMAND [command-options]");
            _writer.WriteLine("");

            _writer.WriteLine("Available commands:");
            _writer.WriteLine("");

            foreach (var commandType in _commandTypes.Where(x => x.IsClass)
                .OrderBy(x => GetScope(x))
                .ThenBy(x => x.Name))
            {
                var usageStringBuilder = new StringBuilder();

                var splitted = SplitUpperCase(commandType.Name).Where(x => x != "Command");
                usageStringBuilder.Append("  ");
                usageStringBuilder.Append(string.Join(" ", splitted.Reverse()));
                var helpAttribute = commandType.GetCustomAttributes(true).OfType<CommandHelpAttribute>().Single();
                    usageStringBuilder.Append(string.Format(" {0}", helpAttribute.Options));

                while (usageStringBuilder.Length < 30)
                {
                    usageStringBuilder.Append(" ");
                }

                _writer.Write(usageStringBuilder.ToString().ToLower());
                _writer.Write(string.Concat("#  ", helpAttribute.Description));

                if (!string.IsNullOrEmpty(helpAttribute.Alias))
                {
                    _writer.Write(" (\"{0}\")", helpAttribute.Alias);
                }
                _writer.WriteLine();
            }

            _writer.WriteLine();
            _writer.WriteLine("Common options:");
            OptionSet.WriteOptionDescriptions(_writer);
        }