We essentially stopped caching these accidentally and they get
called every time we try to load a cask or formula from the API.
It gets really, really, really slow.
I ran `brew deps --casks --eval-all` before and after the changes.
I let it run for 3 minutes before killing it. No output had been
printed to the screen.
It finished printing all output (pages and pages of it) in less
than a minute.
---
This should match the caching behavior we had before the
recent changes in these two PRs.
- https://github.com/Homebrew/brew/pull/16777
- https://github.com/Homebrew/brew/pull/16775
The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.
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