/
Bootstrap.cs
55 lines (49 loc) · 1.25 KB
/
Bootstrap.cs
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using System;
using System.Linq;
using NuTools.Common;
namespace NuTools
{
class Bootstrap
{
static int Main(string[] args)
{
var opts = new OptionParser();
opts.On("help", "display this help and exit").Do(() =>
{
opts.WriteUsage(Console.Out);
Environment.Exit(0);
});
opts.On("version", 'V', "print version information and exit").Do(() =>
{
opts.WriteVersionInfo(Console.Out);
Environment.Exit(0);
});
try
{
var commandType = App.Commands
.SingleOrDefault(NamedAsExecutable)
?? typeof(UnknownCommand);
var command = ((ICommand)Activator.CreateInstance(commandType));
command.WithOptions(opts);
opts.Parse(args);
return command.Execute();
}
catch (OptionParserException ex)
{
Console.Error.WriteLine(ex.Message);
opts.WriteUsageHeader(Console.Error);
Console.Error.WriteLine("\nTry `{0} --help' for more options.", App.CommandName);
return 2;
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
return 1;
}
}
static bool NamedAsExecutable(Type commandType)
{
return string.Equals(commandType.Name, App.CommandName, StringComparison.InvariantCultureIgnoreCase);
}
}
}