Sometimes it is useful to process spawned process stdout and stderr in some way before out this to console. The current implementation of superspawn doesn't give a way to do this. One of the cases when this could be helpful -
CB-9971 (see https://github.com/apache/cordova-android/pull/240 for some discussion).
The proposed approach is:
1. Add ability to accept any valid stdio configuration, just like the original child_process.spawn does (https://nodejs.org/api/child_process.html#child_process_options_stdio)
2. Give a way to caller to listen to stdout and stderr events. This might be implemented as resultant promise progress notification:
Another option is to return na object that implements both EventEmitter and Promise interfaces, so anybody might subscribe to its events.