make cask gcloud-cli automatically set up shell completions

[bartekpacia]

Hi!

I'd like to ask why the gcloud-cli cask doesn't install shell completions in /opt/homebrew/share/zsh/site-functions/, in the file named _gcloud (to trigger completions when the gcloud is typed in shell).

There's the /opt/homebrew/share/google-cloud-sdk/completion.zsh.inc file that has to be sourced to enable shell completions for the gcloud command (and for gsutil and bq as well).

I also noticed that there is a shell completion file named _google_cloud_sdk at /opt/homebrew/share/zsh/site-functions/_google_cloud_sdk. The /opt/homebrew/share/zsh/site-functions directory is a more standard location for shell completion files.

This _google_cloud_sdk file is a symlink to completion.zsh.inc:

$ ls -lAhF /opt/homebrew/share/zsh/site-functions/_google_cloud_sdk
lrwxr-xr-x@ 1 Bartek.Pacia  admin    77B Nov 15 13:46 /opt/homebrew/share/zsh/site-functions/_google_cloud_sdk@ -> /opt/homebrew/Caskroom/gcloud-cli/547.0.0/google-cloud-sdk/completion.zsh.inc

Also, contents of these files are identical:

• /opt/homebrew/share/zsh/site-functions/_google_cloud_sdk (follow symlink)
• /opt/homebrew/share/google-cloud-sdk/completion.zsh.inc

---

To sum up: as a user, I want to simply type brew install gcloud and get shell completions working out of the box (assuming I have the required setup). I don't want to edit my zshrc to source some files.

This is the experience I already have (e.g. I do brew install gh (the GitHub CLI) and shell completions just work).