brew update-python-resources producing Passed 'nil' into T.must errors

[Julian]

Output of brew config

⊙  brew config                                                                                                                                                                                                                                                                                                                                                    julian@Mac
HOMEBREW_VERSION: 4.4.21-62-g27a9032
ORIGIN: https://github.com/Homebrew/brew
HEAD: 27a903212da61972431818b7098b11f4670f75a9
Last commit: 19 hours ago
Branch: master
Core tap JSON: 20 Feb 15:46 UTC
Core cask tap JSON: 20 Feb 15:46 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_BROWSER: open
HOMEBREW_CASK_OPTS: []
HOMEBREW_EDITOR: nvim
HOMEBREW_MAKE_JOBS: 8
HOMEBREW_SORBET_RUNTIME: set
Homebrew Ruby: 3.3.7 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.7/bin/ruby
CPU: octa-core 64-bit arm_blizzard_avalanche
Clang: 16.0.0 build 1600
Git: 2.48.1 => /opt/homebrew/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 15.3-arm64
CLT: 16.2.0.0.1.1733547573
Xcode: N/A
Rosetta 2: false

Output of brew doctor

⊙  brew doctor                                                                                                                                                                                                                                                                                                                                                    julian@Mac
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 formulae are deprecated or disabled.
You should find replacements for the following formulae:
  terraform

Warning: The following formulae have the same name as core formulae:
  julian/tap/fortune
  julian/tap/libxcb
  julian/tap/xcb-proto
  julian/lean/lean
  julian/lean/mathlibtools
  universal-ctags/universal-ctags/universal-ctags
You will need to use their full names throughout Homebrew.

Warning: Putting non-prefixed coreutils in your path can cause GMP builds to fail.

Warning: Putting non-prefixed findutils in your path can cause python builds to fail.

Warning: You have unlinked kegs in your Cellar.
Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
  moreutils

Description of issue

Running:

brew update-python-resources --package-name bowtie-json-schema ./bowtie.rb

on

https://github.com/bowtie-json-schema/homebrew-tap

has started to produce:

⊙  brew update-python-resources --package-name bowtie-json-schema ./bowtie.rb                                                                                                                                                                                                                                                                                     julian@Mac
Error: Passed `nil` into T.must
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11835/lib/types/_types.rb:222:in `must'
/opt/homebrew/Library/Homebrew/dev-cmd/update-python-resources.rb:42:in `block in run'
/opt/homebrew/Library/Homebrew/dev-cmd/update-python-resources.rb:41:in `each'
/opt/homebrew/Library/Homebrew/dev-cmd/update-python-resources.rb:41:in `run'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11835/lib/types/private/methods/call_validation.rb:282:in `bind_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11835/lib/types/private/methods/call_validation.rb:282:in `validate_call'
/opt/homebrew/Library/Homebrew/vendor/bundle/ruby/3.3.0/gems/sorbet-runtime-0.5.11835/lib/types/private/methods/_methods.rb:277:in `block in _on_method_added'
/opt/homebrew/Library/Homebrew/brew.rb:95:in `<main>'
Please report this issue:
  https://docs.brew.sh/Troubleshooting

[p-linnane]

Thanks for the report.

@gromgit I've bisected this to Homebrew/brew@956b71e. Are you able to take a look?

[gromgit]

@p-linnane, does Homebrew still officially support running dev commands on bare formulae (i.e. outside of taps)? This is what's happening here.

[gromgit]

Anyway, I've opened Homebrew/brew#19344 to fix.

[gromgit]

PR merged. @Julian, run brew update, then try your command again.

[Julian]

Works, thanks for the fix!

[p-linnane]

Thank you @gromgit! 🙏🏻