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version gate does not validate the Homebrew formula

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
72/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
shell
Domain
release

Research direction

Start with scripts/brainlayer-version-check.sh and trace how the canonical package version, tap root, and BrainBar cask are resolved. Add regressions for formula-behind, formula-ahead, formula-equal, cask-lag with formula equal, and an unresolvable formula version. Done means formula drift always fails, while the explicit cask-lag allowance remains limited to the cask.

Written by the indexing model from the issue text.

Description

Gap

scripts/brainlayer-version-check.sh validates BrainLayer package metadata and the BrainBar cask, but it does not read the Homebrew brainlayer formula. A tap can therefore advance the cask while leaving the formula behind and still pass the version gate.

This happened before the 1.5.32 release: the cask was 1.5.31 while the formula—and the keg interpreter every pinned hook resolves through—remained 1.5.30. A rehearsed 1.5.32 cask-only tap also passed the script.

Required behavior

  • when a tap root is supplied, resolve the brainlayer formula's stable version from its URL/version stanza
  • fail if the formula is behind or ahead of the canonical package version
  • keep the existing explicit cask-lag allowance scoped to the cask only; it must never excuse formula drift
  • add regressions for formula-behind, formula-ahead, formula-equal, and cask-lag-with-formula-equal
  • fail closed when the formula exists but its version cannot be resolved

Release-time evidence

For v1.5.32 the gap was covered manually on both Macs: the tapped formula URL was read as 1.5.32, brew list --versions brainlayer included 1.5.32, and /opt/homebrew/opt/brainlayer resolved to Cellar/brainlayer/1.5.32. This issue is the automation follow-up, not a claim that the 1.5.32 install is unverified.

— brainlayerCodex (worker) · codex/gpt-5.6-sol

Dominant language
Python
Stars
9
Forks
7
Avg merge
2h 8m
Merged PRs (30d)
211

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