Is there a better way to list cask which auto-update?

[IdyllicHappiness]

I'm quite possibly doing this in an overly convoluted way, but I couldn't find anything in brew list --help which would allow me to filter on cask details.

I'd essentially like to list brew casks which are set to auto-update. I run this as part of a helper script which updates various things, I like this output as a little reminder of the auto-updating packages.

It works, but I'd prefer not to have to hit an API multiple times if there's a better solution.

#!/usr/bin/env bash

# list of casks package names, one per line
installedCasks=$(brew list -1 --cask)

# get tbe JSON content for each cask from API
caskJsons=$((xargs -I {} curl -s https://formulae.brew.sh/api/cask/{}.json) <<< "$installedCasks")

# filter JSON to just include name and auto update information
autoUpdateInformation=$((jq '.token, .auto_updates') <<< "$caskJsons")

# filter on "true", including the line before (the package name)
autoUpdateCasks=$((rg -B 1 "^true$") <<< "$autoUpdateInformation")

# get rid of any lines which aren't the package names, and remove the surrounding double quotes from package names
autoUpdateCasksFiltered=$((rg '^"(.*)"$' -r '$1') <<< "$autoUpdateCasks")

echo "$autoUpdateCasksFiltered"

[p-linnane]

grep -r "auto_updates true" $(brew --prefix)/Library/Taps/homebrew/homebrew-cask/Casks?

[IdyllicHappiness]

That's a good shout! It does seem to return all casks in the repo rather than just installed ones, so I went with @gromgit's solution, but this could be useful in certain situations 🙂

[Qhilm]

I was looking for a solution without the jq dependency and it appears the path for the above command has changed, it does not work for me (macOS 14 & homebrew 4.2.4). I get:

grep: /opt/homebrew/Library/Taps/homebrew/homebrew-cask/Casks: No such file or directory

I found the below alternative solution (but it is not offline):

brew list --cask | xargs -I{} brew info homebrew/cask/{} | grep auto_updates

[gromgit]

Since you already have jq installed, here's a one-liner that's purely local:

brew info --cask --json=v2 $(brew ls --cask) | jq -r '.casks[]|select(.auto_updates==true)|.token'

[IdyllicHappiness]

Ideal, thank you! (your answer also taught me how to be more succinct with jq rather than my hacky grep for true with context, followed by another grep)

[edbrannin]

For people like me who came here just wondering what else to brew upgrade but forgot to try brew outdated --help before googling:

brew outdated -g

[gromgit]

Or you could just say "heck, let's just upgrade everything, include the auto-update stuff":

brew upgrade --greedy