public UsageExpression(UsageGraph parent, string description)
{
_parent = parent;
_commandUsage = new CommandUsage
{
Description = description,
Arguments = new Argument[0],
ValidFlags = _parent.Handlers.Where(x => !x.GetType().CanBeCastTo <Argument>()).ToArray() // Hokum.
};
_parent._usages.Add(_commandUsage);
}
// TODO: Refactor. To much stuff going on in here.
public string[] Build(string[] args)
{
if (args == null) throw new ArgumentNullException("args");
if (args.Any()) return args;
var appName = factory.GetAppName();
Console.WriteLine("Available Commands:");
var allCommandTypes = factory.AllCommandTypes().OrderBy(x => x.Name);
for (var i = 0; i < allCommandTypes.Count(); i++)
{
var commandOption = allCommandTypes.ElementAt(i);
Console.WriteLine("{0}. {1} - {2}", i + 1, commandOption.Name, new UsageGraph(appName, commandOption).Description);
}
Console.Write("Please select a command to run: ");
var commandToRunNumber = Console.ReadLine();
var command = allCommandTypes.ElementAt(int.Parse(commandToRunNumber) - 1);
var usageGraph = new UsageGraph(appName, command);
var commandName = usageGraph.CommandName;
var argsAsStrings = new List<string> { commandName };
if (commandName.Contains("help")) return argsAsStrings.ToArray();
foreach (var handler in usageGraph.Handlers)
{
Console.Write(handler.PromptForArg());
var arg = Console.ReadLine();
Console.WriteLine();
if (string.IsNullOrEmpty(arg)) continue;
var flag = handler as Flag;
var booleanFlag = handler as BooleanFlag;
if (flag != null)
{
argsAsStrings.Add(flag.ConvertPromptArg());
}
if (booleanFlag != null)
{
arg = booleanFlag.ConvertPromptArg(arg);
}
argsAsStrings.Add(arg);
}
return argsAsStrings.ToArray();
}
private CommandRun buildRun(Queue <string> queue, string commandName)
{
var command = Build(commandName);
// this is where we'll call into UsageGraph?
try
{
var usageGraph = new UsageGraph(_appName, _commandTypes[commandName]);
var input = usageGraph.BuildInput(queue);
return(new CommandRun
{
Command = command,
Input = input
});
}
catch (InvalidUsageException e)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid usage");
if (e.Message.IsNotEmpty())
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(e.Message);
}
Console.ResetColor();
Console.WriteLine();
}
catch (Exception e)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Error parsing input");
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(e);
Console.ResetColor();
Console.WriteLine();
}
return(HelpRun(commandName));
}
private CommandRun buildRun(Queue<string> queue, string commandName)
{
var command = Build(commandName);
// this is where we'll call into UsageGraph?
try
{
var usageGraph = new UsageGraph(_appName, _commandTypes[commandName]);
var input = usageGraph.BuildInput(queue);
return new CommandRun
{
Command = command,
Input = input
};
}
catch (InvalidUsageException e)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid usage");
if (e.Message.IsNotEmpty())
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(e.Message);
}
Console.ResetColor();
Console.WriteLine();
}
catch (Exception e)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Error parsing input");
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine(e);
Console.ResetColor();
Console.WriteLine();
}
return HelpRun(commandName);
}
public void all_commands_usage_graph_works()
{
var factory = new CommandFactory();
factory.RegisterCommands(typeof(AliasCommand).Assembly);
factory.RegisterCommands(typeof(IFubuCommand).Assembly);
factory.AllCommandTypes().Each(t =>
{
try
{
var usageGraph = new UsageGraph(t);
usageGraph.WriteUsages();
Assert.IsTrue(usageGraph.Usages.Any(), "Found usages for " + t.FullName);
}
catch (Exception e)
{
throw new ApplicationException("Command type: " + t.FullName, e);
}
});
}
protected FubuCommand()
{
_usages = new UsageGraph(GetType());
}
