I can't untap homebrew/cask and homebrew/core

[benbor]

brew doctor output

brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed casks are deprecated or disabled.
You should find replacements for the following casks:
  dozer

Warning: Some installed kegs have no formulae!
This means they were either deleted or installed manually.
You should find replacements for the following formulae:
  python-platformdirs
  [email protected]
  python-distlib

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  mono
  [email protected]
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Verification

• My "brew doctor output" above says Your system is ready to brew. and am still able to reproduce my issue.
• I ran brew update twice and am still able to reproduce my issue.
• 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.

brew config output

HOMEBREW_VERSION: 4.2.10
ORIGIN: https://github.com/Homebrew/brew
HEAD: c6d959218f143cd17b1fc3e0f10f143cbd273528
Last commit: 3 days ago
Core tap JSON: 28 Feb 11:00 UTC
Core cask tap JSON: 28 Feb 11:00 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 10
HOMEBREW_NO_AUTO_UPDATE: set
Homebrew Ruby: 3.1.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/bin/ruby
CPU: 10-core 64-bit arm_firestorm_icestorm
Clang: 15.0.0 build 1500
Git: 2.44.0 => /opt/homebrew/bin/git
Curl: 8.4.0 => /usr/bin/curl
macOS: 14.2-arm64
CLT: 15.1.0.0.1.1700200546
Xcode: 15.2
Rosetta 2: false

What were you trying to do (and why)?

I try to uninstall two taps "homebrew/cask", and "homebrew/core".

What happened (include all command output)?

brew untap homebrew/cask --debug
Error: No available tap homebrew/cask.
Run brew tap --force homebrew/cask to tap homebrew/cask!
/opt/homebrew/Library/Homebrew/cli/named_args.rb:330:in block in to_installed_taps' /opt/homebrew/Library/Homebrew/cli/named_args.rb:329:in each'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:329:in to_installed_taps' /opt/homebrew/Library/Homebrew/cmd/untap.rb:26:in untap'
/opt/homebrew/Library/Homebrew/brew.rb:86:in `

'

What did you expect to happen?

I expect that the "homebrew/cask" tap will be uninstalled successfully

Step-by-step reproduction instructions (by running brew commands)

> brew tap
homebrew/bundle
homebrew/cask
homebrew/cask-fonts
homebrew/core 

> brew untap homebrew/cask
Error: No available tap homebrew/cask.
Run brew tap --force homebrew/cask to tap homebrew/cask!

[MikeMcQuaid]

It's already uninstalled.

[benbor]

@MikeMcQuaid thanks for your answer.

Could you please specify how did you figure it out?

command > brew tap shows the following output

> brew tap
homebrew/bundle
homebrew/cask
homebrew/cask-fonts
homebrew/core 

And command brew bundle adds taps homebrew/cask and homebrew/core into Brewfile.
Even I remove this two taps from Brewfile manually, brew bundle cleanup couldn't manage to deal with it

> brew bundle cleanup
Would untap:
homebrew/cask
Run `brew bundle cleanup --force` to make these changes.

> brew bundle cleanup --force
Error: No available tap homebrew/cask.
Run brew tap --force homebrew/cask to tap homebrew/cask!

I'm sure it is still some bug with that two taps in my scenario.

[Bo98]

brew tap behaviour did indeed change in #16710. I agree it is perhaps unclear that brew tap shows things but brew untap says they never existed.

brew bundle cleanup looks like a regression since #16710 involved breaking public API changes so everything that used it probably needs checking.

[MikeMcQuaid]

@benbor Apologies that I saw all except that they were still listed by brew tap.

@reitermarkus can you fix this regression, thanks.

[benbor]

@MikeMcQuaid No problem

Thank you so much for maintaining Homebrew! Your hard work makes my daily routine much easier

[reitermarkus]

Will take a look.

So I guess it's only the error message that is unclear? Basically, you cannot untap homebrew/cask because it's always available when using the API.

[Bo98]

It's well-documented that running brew tap on homebrew/core|cask will give you a local git clone so the concept of "tapped" has largely been around that concept of having a local git clone. Similarly you run brew untap to get rid of a local git clone and return to API-only state. So it's a bit confusing that the brew tap list doesn't reflect the same idea and that you can run brew tap again on something from that list to actually fully install it.

brew bundle also seems to also now not work in API-only mode properly after the changes and thinks it needs to do a brew tap/untap.

[reitermarkus]

So should we only show taps that have a local clone, or show something like

homebrew/core (using API)

?

[Bo98]

I'd say show taps with local clone. If you want API information, it maybe could be added with --verbose - I'm cautious adding it in regular output given brew tap is machine-parsable, as demonstrated by how $(brew tap) is used in our zsh completions and in many other places around the internet: https://github.com/search?q=%22%24%28brew+tap%29%22&type=code

[madAndroid]

It appears that brew bundle dump is still being affected by this issue - the created Brewfile includes:

tap "homebrew/cask"
tap "homebrew/core"

... which means when attempting to install using this created file, I get this error:

Error: No available tap homebrew/cask.
Run brew tap --force homebrew/cask to tap homebrew/cask!

[madAndroid]

I've worked around the issue for now using:

brew tap --force homebrew/core
brew tap --force homebrew/cask

... but it would be good if brew bundle dump didn't create those entries in the Brewfile

[MikeMcQuaid]

... but it would be good if brew bundle dump didn't create those entries in the Brewfile

Opened Homebrew/homebrew-bundle#1317 to address this.