More control over logging and output

[willo-icon]

I'm using tsup to build a library that outputs a ton of files, many of which are generated. This makes the output of my builds really hard to parse since it spits out hundreds of lines of files I don't particularly care about. I could use --silent but it'd be nice to keep the logs that print timings and other informative output.

I don't have a specific flag or set of flags I'd prescribe for the feature request, but here are some suggestions:

1. Flag / option to filter out files by glob matching pattern from logging
2. Granularity of logs based on levels, where maybe the individual files are a level below the general information output
3. Ability to provide a custom logger in tsup.config.ts's defineConfig, to implement any custom logic you could want

Open to any and all options. Thanks for the amazing tool, I use it all the time.