A way to pass in a cancellation token

[rollemira]

I'm finding myself needing to give the constructed task created a cancellation token. If there is a way to do that, I'm just not finding it.

[rollemira]

Never mind, I'm sorry. Just my ignorance of tasks. Turns out when I return it as a task and call for .Wait() in the managing class I can pass the CancellationToken in there.

[madelson]

@rollemira be careful; Task.Wait(CancellationToken) will only cancel the wait, not the actual Command and underlying process.

If you want to actually abort the command via cancellation token, your best bet today is:

var command = Command.Run(...);
// when the token is canceled, abort the command
cancellationToken.Register(() => command.Kill());
// could pass the token in here, but that wouldn't add much since killing the process will also end the wait
// at that point, you'll either see an exception (if you set ThrowOnError(), or a successful return with an error exit code (the default)
command.Task.Wait();

That said, it would be nice if you could pass a CancellationToken in via options:

var command = Command.Run(
    "somecommand", 
     new[] { "some", "arguments" }, 
     options: o => o.CancellationToken(cancellationToken)
);

If we added this API, then a cancel would not only abort the process but would also cause Command.Task to change to the Canceled status.

[rollemira]

Sweet! I'll use your recommended solution for now. Thanks!