public static string CreateAvailableCommandsHelpText()
{
var catalog = new CommandCatalog();
var lines =
from command in catalog
let optionsType = CommandCatalog.GetOptionsType(command)
let options = Activator.CreateInstance(optionsType)
let name = CommandCatalog.GetCommandName(command)
let title = Prompt.GetAppTitle(options)
orderby name
select new[] {
name,
' '.Replicate(12) + title
};
var text = lines.SelectMany().JoinLines();
return(text);
}
private static int CallCommand(string commandName, string[] commandArgs)
{
var commands = new CommandCatalog();
var command = (
from x in commands
let name = CommandCatalog.GetCommandName(x)
where name == commandName
select x
).FirstOrDefault();
if (command == null)
{
Prompt.PrintInvalidUsage($"Comando não encontrado: {commandName}");
return(1);
}
var commandMethod = CommandCatalog.GetCommandMethod(command);
var commmandOptionsType = CommandCatalog.GetOptionsType(command);
var commmandOptions = Activator.CreateInstance(commmandOptionsType);
PosixParser.ParseArgs(commmandOptions, commandArgs);
var result = commandMethod.Invoke(command, new[] { commmandOptions });
if (result is int)
{
return((int)result);
}
if (result is bool)
{
return(true.Equals(result) ? 0 : 1);
}
return(0);
}