dev-cmd/bump: add --tap= flag

[jck112]

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Allow tap maintainers to run brew bump --tap <user>/<repo> to keep their formulae and casks up-to-date.

(Note: this is the same exact behavior as brew livecheck --tap <user/<repo>)

[ZhongRuoyu]

You should be able to do it with brew bump <user>/<repo>/<formula>, just like brew install.

[jck112]

You should be able to do it with brew bump <user>/<repo>/<formula>, just like brew install.

Yes it works for individual formula and casks. However if you want to bump your entire tap repository then you have to either maintain a list of all your formula / casks or generate it with some kind of custom script.

[bevanjkay]

I appreciate you looking into this @jck112 - I'm running a subcommand to generate a list in my own tap's autobump workflow.

[Bo98]

This is a good idea but I am tempted to add an error if tap.official? so no one does brew bump --tap=Homebrew/core.

[jck112]

This is a good idea but I am tempted to add an error if tap.official? so no one does brew bump --tap=Homebrew/core.

Added the check as well as a test. Let me know if want any tweaks to the error message.

[MikeMcQuaid]

Thanks so much for your first contribution to Homebrew/brew! Without people like you submitting PRs we couldn't run this project. You rock, @jck112!