Align progress bar position and logging output

[fschoenm]

I'd like to achieve the following:

I'm logging the output of my application but when a long running task starts I'd like to show a (transient) progress bar that is aligned with the logging output, like this:

After the process/task is finished I would like the progress bar to disappear (works by being transient) and the logging to continue:

Question: Is there a way to combine/align progress bar and logging output or at least figure out where the logging text starts?

As a work-around, I'm currently prefixing the task description with spaces, which isn't very clever or portable. Otherwise my output would look like this: