I received the following error when attempting to use the `upgrade`
command on a tap:
$ brew tap teddywing/passextract https://github.com/teddywing/Passextract.git
$ brew upgrade --verbose teddywing/passextract/passextract
Updating Homebrew...
==> Upgrading 1 outdated package, with result:
teddywing/passextract/passextract 0.4.0
Error: Calling build.build_bottle? is disabled!
Use build.bottle? instead.
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:121:in `upgrade_formula'
Or, even better, submit a PR to fix it!
Change the method call to use the (presumably) newer version.
Homebrew's Formula API
This is the (partially) documented public API for Homebrew.
The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.
You may also find the Formula Cookbook and Ruby Style Guide helpful in creating formulae.
Good luck!