Casks cannot generate shell completions like formulae #21482
Description
Verification
- This issue's title and/or description do not reference a single formula e.g.
brew install wget. If they do, open an issue at https://github.com/Homebrew/homebrew-core/issues/new/choose instead.
Provide a detailed description of the proposed feature
Formulae have https://docs.brew.sh/rubydoc/Formula.html#generate_completions_from_executable-instance_method to generate completions based on a command that was installed. It would be nice if casks could also do that, since they don't always ship completions as files.
What is the motivation for the feature?
People asked about it in https://github.com/orgs/goreleaser/discussions/5563
How will the feature be relevant to at least 90% of Homebrew users?
It makes cask software easier to use, which I believe to be good for all Homebrew users.
What alternatives to the feature have been considered?
Not implementing this for casks and pleading with upstreams to ship files instead.