Debug is a wrapper around log.Debug().

Error is a wrapper around log.Error.

Info is a wrapper around log.Info().

Reads two streams, typically the output of a function call as we as its error stream, and prints them.

ProgressBar takes a percentage value and returns a string that indicates that percentage has completed in a nice way.

WaitFor starts some goroutines and pretty-prints a message for each.

WaitForSerial runs a series of functors in serial, waiting for each to complete to before starting the next one.

WaitForWithLevel starts some goroutines and pretty-prints a message for each.

Waiter defines a function to wait for and a message to display while waiting.