Quick feedback:

- the API seems great
- thank you very much for the documentation

Thanks!

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- I wonder why you pass strings for stdout and stderr instead of streams

In which part exactly? In the method like #runAndWaitOnExitDo: ?��

if that was the question, then I simply thought it would be easier for the user to receive strings. In fact, internally I use streams, but just when I evaluate the closure I pass #contents.�� I think it's more common for users wanting a string than a stream. In either case, if they received a string they can do #readStreamDo:[] ��or whatever, and if they receive a stream they can do #contents.��

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- it would be nice to be able to subclass OSSUnixProcessExitStatus for some commands. E.g., GitProcessExitStatus could have a method isMergeConflict

That would be nice.��

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- how can I implement something like tail --follow

I think it would be nice to how an example of this type of streaming API. Note that this goes very similar to what Luc proposes below.��

Thanks for the feedback!

Mariano
http://marianopeck.wordpress.com