public static IHostBuilder ConfigureCommandLineApplication <TApp>(
this IHostBuilder hostBuilder,
string[] args,
out CommandLineState applicationState)
where TApp : class
{
var state = new CommandLineState(args);
hostBuilder.ConfigureServices((_, services) =>
{
services.AddSingleton <IUnhandledExceptionHandler, GlobalExceptionHandler>();
services.AddSingleton(PhysicalConsole.Singleton);
services.TryAddSingleton(provider =>
{
state.SetConsole(provider.GetRequiredService <IConsole>());
return(state);
});
services
.AddSingleton <IHostLifetime, CommandLineLifetime>()
.AddSingleton <CommandLineContext>(state)
.AddSingleton <ICommandLineService, CommandLineService <TApp> >();
});
applicationState = state;
return(hostBuilder);
}
/// <summary>
/// Creates a new instance.
/// </summary>
/// <param name="logger">A logger</param>
/// <param name="state">The command line state</param>
/// <param name="serviceProvider">The DI service provider</param>
public CommandLineService(
ILogger <CommandLineService <T> > logger,
CommandLineState state,
IServiceProvider serviceProvider)
{
_logger = logger;
_state = state;
logger.LogDebug(
"Constructing CommandLineApplication<{type}> with args [{args}]",
typeof(T).FullName,
string.Join(",", state.Arguments));
_application = new CommandLineApplication <T>(state.Console, state.WorkingDirectory);
_application
.Conventions
.UseDefaultConventions()
.UseConstructorInjection(serviceProvider);
foreach (var convention in serviceProvider.GetServices <IConvention>())
{
_application.Conventions.AddConvention(convention);
}
}