something analogous to log.Fatal() ? about log15 HOT 3 CLOSED

This is pretty easy to create yourself, and that's the way I'd recommend doing it:

log15.Root().SetHandler(log15.FilterHandler(func(r *Record) bool {
    if r.Lvl == log15.LvlCrit {
        os.Exit(1)
    }
    return true
}, log15.StdoutHandler)

In general though, I wouldn't recommend behavior like this. It's usually much better to return an error and then have your main() function just exit(1) if any of the functions it calls return errors. This makes your code more amenable for reuse as a library.

from log15.

Fair enough, and, indeed, I write library code that way specifically for that reason. That said, it's a 6 of one half a dozen of the other situation and this is an "opinionated" framework ;). Feel free to close this, you won't catch any flak from me.

from log15.

I like to keep the API minimalist, so I think we'll leave it as is for now. If you want to add that handler to log15/ext though, that would be a good pull request

from log15.