Aux sends auxiliary information over a progress interface, which will not be formatted for the UI.

ChanOutput returns a Output that writes progress updates to the supplied channel.

Message is a convenience function to write a progress message to the channel.

Messagef is a convenience function to write a printf-formatted progress message to the channel.

NewProgressReader creates a new ProgressReader.

Update is a convenience function to write a progress update to the channel.

Updatef is a convenience function to write a printf-formatted progress update to the channel.

Progress represents the progress of a transfer.

Reader is a Reader with progress bar.

Output is an interface for writing progress information.