docker-completion install failure

[ArthurJS]

brew gist-logs <formula> link OR brew config AND brew doctor output

homebrew-core % brew gist-logs docker-completion
Error: No logs.

Verification

• My brew doctor output says Your system is ready to brew. and am still able to reproduce my issue.
• I ran brew update and am still able to reproduce my issue.
• I have resolved all warnings from brew doctor and that did not fix my problem.
• I searched for recent similar issues at https://github.com/Homebrew/homebrew-core/issues?q=is%3Aissue and found no duplicates.

What were you trying to do (and why)?

have docker, docker-completion up-to-date

What happened (include all command output)?

I have installed docker, docker-completion and docker-desktop cask

installing current version of docker-completion, I get following error log (--verbose)

==> Pouring docker-completion--28.3.2.all.bottle.tar.gz
/usr/bin/env tar --extract --no-same-owner --file /Users/sercka/Library/Caches/Homebrew/downloads/12de028061eda3aee088dcdb5dd9b9b91175df593d35e54139cca72a6b50a855--docker-completion--28.3.2.all.bottle.tar.gz --directory /private/tmp/homebrew-unpack-20250716-29386-4dp4fa
mv /private/tmp/homebrew-unpack-20250716-29386-4dp4fa/docker-completion/28.3.2 /opt/homebrew/Cellar/docker-completion/28.3.2
/usr/bin/env cp -pR /private/tmp/homebrew-unpack-20250716-29386-4dp4fa/docker-completion /opt/homebrew/Cellar
==> Finishing up
Error: same file: /opt/homebrew/etc/bash_completion.d/docker and /Users/sercka/Library/Caches/Homebrew/Backup/etc/bash_completion.d/docker
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.4/lib/ruby/3.4.0/fileutils.rb:2470:in 'block in FileUtils.fu_each_src_dest'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.4/lib/ruby/3.4.0/fileutils.rb:2487:in 'FileUtils.fu_each_src_dest0'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.4/lib/ruby/3.4.0/fileutils.rb:2469:in 'FileUtils.fu_each_src_dest'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.4/lib/ruby/3.4.0/fileutils.rb:1161:in 'FileUtils.mv'
/opt/homebrew/Library/Homebrew/formula_installer.rb:1142:in 'FormulaInstaller#link'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'UnboundMethod#bind_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'T::Private::Methods::CallValidation.validate_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/_methods.rb:277:in 'block in FormulaInstaller#_on_method_added'
/opt/homebrew/Library/Homebrew/formula_installer.rb:921:in 'FormulaInstaller#finish'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'UnboundMethod#bind_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'T::Private::Methods::CallValidation.validate_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/_methods.rb:277:in 'block in FormulaInstaller#_on_method_added'
/opt/homebrew/Library/Homebrew/reinstall.rb:94:in 'Homebrew::Reinstall.reinstall_formula'
/opt/homebrew/Library/Homebrew/cmd/reinstall.rb:176:in 'block in Homebrew::Cmd::Reinstall#run'
/opt/homebrew/Library/Homebrew/cmd/reinstall.rb:175:in 'Array#each'
/opt/homebrew/Library/Homebrew/cmd/reinstall.rb:175:in 'Homebrew::Cmd::Reinstall#run'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'UnboundMethod#bind_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/call_validation.rb:282:in 'T::Private::Methods::CallValidation.validate_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.4.0/gems/sorbet-runtime-0.5.12222/lib/types/private/methods/_methods.rb:277:in 'block in Homebrew::Cmd::Reinstall#_on_method_added'
/opt/homebrew/Library/Homebrew/brew.rb:95:in '<main>'
Please report this issue:
  https://docs.brew.sh/Troubleshooting

### What did you expect to happen?

update everything docker related via brew

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

```shell
I think I can reproduce it via

brew install docker

brew install --cask docker-desktop

brew reinstall docker-completion

[gromgit]

What's the output of ls -ld /opt/homebrew/etc /opt/homebrew/etc/bash_completion.d /opt/homebrew/etc/bash_completion.d/docker?

[akalsey]

Same error here, the output of that ls for me is

drwxrwxr-x  23 xxxxx  admin  736 May  4 16:39 /opt/homebrew/etc/
drwxr-xr-x  14 xxxxx  admin  448 Jun 24 16:29 /opt/homebrew/etc/bash_completion.d/
lrwxr-xr-x@  1 xxxxx  admin   70 Apr  2 14:48 /opt/homebrew/etc/bash_completion.d/docker@ -> /Applications/Docker.app/Contents/Resources/etc/docker.bash-completion

[cho-m]

Is there a reason you need all 3 installed?

docker-desktop cask should provide the binary and completions already, which is why it is marked as conflicting.

Currently, the conflict handling between formulae and casks is not implemented so errors may occur. See related issues:

• New and improved conflicts_with handling for formulae and casks brew#16398
• brew install --cask docker fails after having done brew install docker brew#16309
• Implementing conflicts_with formula: homebrew-cask#12822