private void CreateSubApplications(Type type,
CommandLineApplication parentApplication,
IDependencyResolver dependencyResolver)
{
IEnumerable <Type> propertySubmodules =
type.GetDeclaredProperties <SubCommandAttribute>()
.Select(p => p.PropertyType);
IEnumerable <Type> inlineClassSubmodules = type
.GetNestedTypes(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly)
.Where(x => x.HasAttribute <SubCommandAttribute>())
.Where(x => !x.IsCompilerGenerated())
.Where(x => !typeof(IAsyncStateMachine).IsAssignableFrom(x));
foreach (Type submoduleType in propertySubmodules.Union(inlineClassSubmodules))
{
// TODO: optimization - return a LazyAppCreator, parsing sub applications only as needed
// the current code creates all sub applications
// for an app like git with a lot of commands this can have a noticeable impact
// this accounts for ~10% of the run time across all feature tests
AppCreator appCreator = new AppCreator(_appSettings);
appCreator.CreateApplication(submoduleType, dependencyResolver, parentApplication);
}
}
private void CreateSubApplications(Type type,
CommandLineApplication parentApplication,
IDependencyResolver dependencyResolver)
{
IEnumerable <Type> propertySubmodules =
type.GetDeclaredProperties <SubCommandAttribute>()
.Select(p => p.PropertyType);
IEnumerable <Type> inlineClassSubmodules = type
.GetNestedTypes(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly)
.Where(x => x.HasAttribute <SubCommandAttribute>())
.Where(x => !x.IsCompilerGenerated())
.Where(x => !typeof(IAsyncStateMachine).IsAssignableFrom(x));
foreach (Type submoduleType in propertySubmodules.Union(inlineClassSubmodules))
{
AppCreator appCreator = new AppCreator(_appSettings);
appCreator.CreateApplication(submoduleType, dependencyResolver, parentApplication);
}
}
/// <summary>
/// Executes the specified command with given parameters
/// </summary>
/// <param name="args">Command line arguments</param>
/// <returns>If target method returns int, this method will return that value. Else,
/// it will return 0 in case of success and 1 in case of unhandled exception</returns>
public int Run(params string[] args)
{
try
{
AppCreator appCreator = new AppCreator(_settings);
CommandLineApplication app = appCreator.CreateApplication(typeof(T), DependencyResolver);
return(app.Execute(_parserBuilder.Build(), args));
}
catch (AppRunnerException e)
{
_settings.Error.WriteLine(e.Message + "\n");
#if DEBUG
_settings.Error.WriteLine(e.StackTrace);
#endif
return(1);
}
catch (CommandParsingException e)
{
var optionHelp = e.Command.OptionHelp;
if (optionHelp != null)
{
_settings.Out.WriteLine(
$"Specify --{optionHelp.LongName} for a list of available options and commands.");
}
_settings.Error.WriteLine(e.Message + "\n");
e.Command.ShowHelp();
#if DEBUG
_settings.Error.WriteLine(e.StackTrace);
#endif
return(1);
}
catch (ValueParsingException e)
{
_settings.Error.WriteLine(e.Message + "\n");
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x.GetBaseException() is AppRunnerException) ||
e.InnerExceptions.Any(x =>
x.GetBaseException() is CommandParsingException))
{
foreach (var innerException in e.InnerExceptions)
{
_settings.Error.WriteLine(innerException.GetBaseException().Message + "\n");
#if DEBUG
_settings.Error.WriteLine(innerException.GetBaseException().StackTrace);
if (e.InnerExceptions.Count > 1)
{
_settings.Error.WriteLine("-----------------------------------------------------------------");
}
#endif
}
return(1);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x =>
x.GetBaseException() is ArgumentValidationException))
{
ArgumentValidationException validationException =
(ArgumentValidationException)e.InnerExceptions.FirstOrDefault(x =>
x.GetBaseException() is ArgumentValidationException);
foreach (var failure in validationException.ValidationResult.Errors)
{
_settings.Out.WriteLine(failure.ErrorMessage);
}
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x.GetBaseException() is ValueParsingException)
)
{
ValueParsingException valueParsingException =
(ValueParsingException)e.InnerExceptions.FirstOrDefault(x =>
x.GetBaseException() is ValueParsingException);
_settings.Error.WriteLine(valueParsingException.Message + "\n");
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x is TargetInvocationException))
{
TargetInvocationException ex =
(TargetInvocationException)e.InnerExceptions.SingleOrDefault(x => x is TargetInvocationException);
ExceptionDispatchInfo.Capture(ex.InnerException ?? ex).Throw();
return(1); // this will never be called
}
catch (AggregateException e)
{
foreach (Exception innerException in e.InnerExceptions)
{
ExceptionDispatchInfo.Capture(innerException).Throw();
}
return(1); // this will never be called if there is any inner exception
}
catch (ArgumentValidationException ex)
{
foreach (var failure in ex.ValidationResult.Errors)
{
_settings.Out.WriteLine(failure.ErrorMessage);
}
return(2);
}
catch (TargetInvocationException ex)
{
ExceptionDispatchInfo.Capture(ex.InnerException ?? ex).Throw();
return(1); // this will never be called
}
}
/// <summary>
/// Exceutes the specified command with given parameters
/// </summary>
/// <param name="args">Command line arguments</param>
/// <returns>If target method returns int, this method will return that value. Else,
/// it will return 0 in case of successs and 1 in case of unhandled exception</returns>
public int Run(params string[] args)
{
try
{
AppCreator appCreator = new AppCreator(_settings);
CommandLineApplication app = appCreator.CreateApplication(typeof(T), DependencyResolver);
var parsedArguments = ArgumentParser.SplitFlags(args).ToArray();
return(app.Execute(parsedArguments));
}
catch (AppRunnerException e)
{
Console.Error.WriteLine(e.Message + "\n");
#if DEBUG
Console.Error.WriteLine(e.StackTrace);
#endif
return(1);
}
catch (CommandParsingException e)
{
Console.Error.WriteLine(e.Message + "\n");
e.Command.ShowHelp();
#if DEBUG
Console.Error.WriteLine(e.StackTrace);
#endif
return(1);
}
catch (ValueParsingException e)
{
Console.Error.WriteLine(e.Message + "\n");
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x.GetBaseException() is AppRunnerException) ||
e.InnerExceptions.Any(x => x.GetBaseException() is CommandParsingException))
{
foreach (var innerException in e.InnerExceptions)
{
Console.Error.WriteLine(innerException.GetBaseException().Message + "\n");
#if DEBUG
Console.Error.WriteLine(innerException.GetBaseException().StackTrace);
if (e.InnerExceptions.Count > 1)
{
Console.Error.WriteLine("-----------------------------------------------------------------");
}
#endif
}
return(1);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x.GetBaseException() is ArgumentValidationException))
{
ArgumentValidationException validationException =
(ArgumentValidationException)e.InnerExceptions.FirstOrDefault(x => x.GetBaseException() is ArgumentValidationException);
foreach (var failure in validationException.ValidationResult.Errors)
{
Console.WriteLine(failure.ErrorMessage);
}
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x.GetBaseException() is ValueParsingException))
{
ValueParsingException valueParsingException =
(ValueParsingException)e.InnerExceptions.FirstOrDefault(x => x.GetBaseException() is ValueParsingException);
Console.Error.WriteLine(valueParsingException.Message + "\n");
return(2);
}
catch (AggregateException e) when(e.InnerExceptions.Any(x => x is TargetInvocationException))
{
TargetInvocationException ex =
(TargetInvocationException)e.InnerExceptions.SingleOrDefault(x => x is TargetInvocationException);
ExceptionDispatchInfo.Capture(ex.InnerException ?? ex).Throw();
return(1); // this will never be called
}
catch (AggregateException e)
{
foreach (Exception innerException in e.InnerExceptions)
{
ExceptionDispatchInfo.Capture(innerException).Throw();
}
return(1); // this will never be called if there is any inner exception
}
catch (ArgumentValidationException ex)
{
foreach (var failure in ex.ValidationResult.Errors)
{
Console.WriteLine(failure.ErrorMessage);
}
return(2);
}
catch (TargetInvocationException ex)
{
ExceptionDispatchInfo.Capture(ex.InnerException ?? ex).Throw();
return(1); // this will never be called
}
}
