Allow pinning for casks

[cglong]

Provide a detailed description of the proposed feature

I wish I could use brew pin to pin casks to a specific version rather than only formulae.

What is the motivation for the feature?

I use the mactex cask, which is a ~4GB download. The newest version of the cask has a requirement I can't meet (minimum macOS version), but every brew upgrade call tries to download the new version anyway. I wish I could pin mactex to short-circuit this.

How will the feature be relevant to at least 90% of Homebrew users?

Casks are commonly used for proprietary applications. Unlike FOSS, proprietary apps can make huge UX changes that the user cannot revert. Allowing everyone to pin casks would help users ensure they don't suffer any regressions in their favorite apps.

What alternatives to the feature have been considered?

I considered suggesting that cask requirements be evaluated before the download, but this would be relevant for a much smaller segment of users.

[miccal]

Please see the discussion in Homebrew/homebrew-cask#90242.

I would suggest that you remove mactex from your brew list --casks by running the command rm -r /usr/local/Caskroom/mactex.

[cglong]

Got it, makes sense from that discussion. Thank you for the workaround @miccal! 🙂