Show which file is being processed

Is your feature request related to a problem? Please describe.
When I run my make command (in my case make confluence it processes many files (I assume part of autosummary, but also rst files). I get a lot of errors, but I can't tell which files the correspond to. These are probably python import-level errors (so maybe this request is more autosummary specific); the rst sometimes specifies the file in the error, but not always. For example, we are trying to migrate many python files and refactor our code, using autosummary. I get many pythyon-errors/warnings from the autosummary but also like "WARNING: unable to build link to document due to missing title (in index): genindex", which is easier to track down, but it still doesn't say the file it's processing.

Describe the solution you'd like
I would just like a mention in the output of what file it is processing so I know what file to look at to fix the errors. Otherwise I'm having to look through each files trying to find out where the errors are coming from.

Describe alternatives you've considered
I don't see any flags or anything that would allow for this ability. My apologies if I don't understand the proper workflow. Thank you for the great package!

Start by reproducing the issue with the make confluence command and inspect how autosummary and rst files report warnings. Done means processing errors and warnings identify the file being processed, including messages such as missing-title warnings.