Hooks to update the status of the progress bar

[ardoramor]

If the script can measure its progress, it would be nice to make calls to update the status of the progress bar instead of it being infinite.

[chriskiehl]

This one, though it would be cool, is problematic.

Internally, Gooey no longer talks directly to the client code (your modules), but instead runs them via popen and gets its updates via stdout and stderr. This was done so that Gooey can be agnostic as to the client programs implementation language (e.g. Python, Java, Go, etc..). Because it is a passive observer, there aren't any hooks which you could call to report progress.

Now, I could get around this by parsing stdout for messages giving progress updates -- which, now that I'm typing it doesn't sound too terrible (though pretty clunky), but.. I dunno. I'd have to play around with it a bit.

[chriskiehl]

Progress bar implemented.

Docs pending. Checkout the examples here for usage: https://github.com/chriskiehl/GooeyExamples