/// <summary>
/// Start a program and get notified of lines in realtime through <paramref name="lineHandler"/> unlike <see cref="Start(string,string[])"/>
/// This won't capture all lines on the returned object and won't default to writing to the Console.
/// </summary>
/// <param name="timeout">The maximum runtime of the started program</param>
/// <param name="started">A callback when the process is ready to receive standard in writes</param>
/// <param name="lineHandler">
/// An implementation of <see cref="IConsoleLineHandler"/> that receives every line as <see cref="LineOut"/> or the <see cref="Exception"/> that occurs while running
/// </param>
/// <returns>The exit code and whether the process completed</returns>
public static ProcessResult StartRedirected(StartArguments arguments, TimeSpan timeout, StartedHandler started, IConsoleLineHandler lineHandler = null)
{
using (var composite = new CompositeDisposable())
{
var process = new ObservableProcess(arguments);
if (started != null)
{
process.ProcessStarted += started;
}
Exception seenException = null;
composite.Add(process);
composite.Add(process.SubscribeLines(
l => lineHandler?.Handle(l),
e =>
{
seenException = e;
lineHandler?.Handle(e);
})
);
var completed = process.WaitForCompletion(timeout);
if (seenException != null)
{
ExceptionDispatchInfo.Capture(seenException).Throw();
}
return(new ProcessResult(completed, process.ExitCode));
}
}
/// <summary> Starts a program and captures the output while writing to the console in realtime during execution </summary>
/// <param name="timeout">The maximum runtime of the started program</param>
/// <param name="started">A callback when the process is ready to receive standard in writes</param>
/// <param name="consoleOutWriter">
/// An implementation of <see cref="IConsoleOutWriter"/> that takes care of writing to the console
/// <para>defaults to <see cref="ConsoleOutColorWriter"/> which writes standard error messages in red</para>
/// </param>
/// <returns>An object holding a list of console out lines, the exit code and whether the process completed</returns>
public static ProcessCaptureResult Start(StartArguments arguments, TimeSpan timeout, IConsoleOutWriter consoleOutWriter, StartedHandler started)
{
using (var composite = new CompositeDisposable())
{
var process = new ObservableProcess(arguments);
if (started != null)
{
process.ProcessStarted += started;
}
consoleOutWriter = consoleOutWriter ?? new ConsoleOutColorWriter();
Exception seenException = null;
var consoleOut = new List <LineOut>();
composite.Add(process);
composite.Add(process.SubscribeLinesAndCharacters(
consoleOut.Add,
e => seenException = e,
consoleOutWriter.Write,
consoleOutWriter.Write
)
);
var completed = process.WaitForCompletion(timeout);
if (seenException != null)
{
ExceptionDispatchInfo.Capture(seenException).Throw();
}
return(new ProcessCaptureResult(completed, consoleOut, process.ExitCode));
}
}
