What this commit does

Fixes improper string quoting in Homebrew cask zap arrays to ensure valid Ruby syntax in generated cask files.

Previously, installing a cask with a zap stanza would result in an error due to unquoted strings.

Example configuration

GoReleaser config (valid YAML):

zap:
  trash:
    - "~/.moley/config.yml"

Generated cask (invalid Ruby):

zap trash: [
    ~/.moley/config.yml,
  ]

This results in a syntax error when running:

brew install --cask moley.rb

Error:

➜  mole git:(main) ✗ brew install --cask moley.rb
Warning: Cask 'moley' is unreadable: /Users/kilianhoupeurt/Documents/git/mole/mole/moley.rb:36: syntax errors found
  34 |
  35 |   zap trash: [
> 36 |       ~/.moley/config.yml,
     |               ^~~~~~~ unknown regexp options - cfg
  37 |     ],
  48 |

Actual fix

The fix updates the groupToS function to ensure all string values in the zap array are properly quoted using fmt.Sprintf("%q", l).

Correct output:

zap trash: [
    "~/.moley/config.yml",
  ]

With this fix, the cask installs correctly:

➜  mole git:(main) ✗ brew install --cask moley.rb
==> Downloading https://github.com/stupside/moley/releases/download/v1.1.2/moley_1.1.2_darwin_arm64.tar.gz
==> Downloading from https://objects.githubusercontent.com/github-production-release-asset-2e65be/1010395208/c4459
########################################################################################################### 100.0%
==> Installing Cask moley
==> Linking Binary 'moley' to '/opt/homebrew/bin/moley'
🍺  moley was successfully installed!

Why this change is necessary

Unquoted strings in Ruby array literals are treated as variables or invalid expressions, leading to syntax errors.

This change ensures:

• All zap entries are quoted strings
• Generated Ruby is syntactically valid
• Casks using zap can be installed without manual intervention

Additional details

• Consolidates quoting logic in groupToS
• Updates test golden files accordingly

Fixes generation bug in Homebrew cask zap stanza

References:

• GoReleaser homebrew_casks docs
• [Problematic cask](https://github.com/stupside/homebrew-tap/blob/main/Casks/moley.rb#L35-L40)
• [GoReleaser config](https://github.com/stupside/moley/blob/main/.goreleaser.yml#L44-L48)