public VerbTaskResult ExecuteTask(string verb, string[] args)
{
if (!this.Verbs.Contains(verb))
{
Console.Write($"'{verb}' is not a valid task. ");
this.Verbs["list"].Execute(null, null);
return(1);
}
var task = this.Verbs[verb];
var namedArgs = this.Parser.ParseNamedArguments(args);
var posArgs = this.Parser.ParsePositionalArguments(args);
var typedArguments = Instantiate.CreateInstance(task.ArgumentType);
foreach (KeyValuePair <string, string> namedArg in namedArgs)
{
foreach ((var prop, var converted) in from prop in task.ArgumentType.GetProperties()
let attr = prop.GetCustomAttribute <NamedArgumentAttribute>()
where attr != null
where attr.LongName.Equals(namedArg.Key, StringComparison.OrdinalIgnoreCase) ||
attr.ShortName.Equals(namedArg.Key, StringComparison.OrdinalIgnoreCase)
let converter = TypeDescriptor.GetConverter(prop.PropertyType)
where converter != null
let converted = converter.ConvertFromInvariantString(namedArg.Value)
select(prop, converted)
)
{
prop.SetValue(typedArguments, converted);
}
}
foreach (KeyValuePair <int, string> posArg in posArgs)
{
foreach ((var prop, var converted) in from prop in task.ArgumentType.GetProperties()
let attr = prop.GetCustomAttribute <PositionalArgumentAttribute>()
where attr != null
where attr.Position == posArg.Key
let converter = TypeDescriptor.GetConverter(prop.PropertyType)
where converter != null
let converted = converter.ConvertFromInvariantString(posArg.Value)
select(prop, converted)
)
{
prop.SetValue(typedArguments, converted);
}
}
return(task.Execute(typedArguments, args));
}
public static object CreateInstance(Type createType)
{
return(Instantiate.CreateInstance(createType, Type.EmptyTypes));
}
