Add font-ibm-plex v0.4.1

[alanorth]

After making all changes to the cask:

• brew cask audit --download {{cask_file}} is error-free.
• brew cask style --fix {{cask_file}} reports no offenses.
• The commit message includes the cask’s name and version.

Additionally, if adding a new cask:

• Named the cask according to the token reference.
• brew cask install {{cask_file}} worked successfully.
• brew cask uninstall {{cask_file}} worked successfully.
• Checked there are no open pull requests for the same cask.
• Checked the cask was not already refused in closed issues.
• Checked the cask is submitted to the correct repo.

[commitay]

From: IBM/plex#70 (comment)

One requirement for inclusion in that particular package manager's repository is that package releases must be tagged

See the formula cookbook where it states this requirement: https://github.com/Homebrew/brew/blob/master/docs/Formula-Cookbook.md

This requirement is for homebrew/core not Cask, we prefer versioned releases but it isn't a deal breaker.

https://github.com/caskroom/homebrew-fonts/blob/cb406b6bd3096ad5c16e4e1c1edcc3badf75a4a5/Casks/font-space-mono.rb#L1-L13

[alanorth]

Thanks, @commitay! I only realized that Caskroom itself didn't require versioned releases after I posted that tip to the IBM type team. Well happy that it all worked out, as it looks like IBM will start tagging their releases. :)

[nickv2002]

Is the plan now to wait for a versioned Plex release before merging?

[alanorth]

@nickv2002 I'm not sure what @commitay is waiting for actually. Upstream already tagged the current release and this formula uses it. 🙌

[nickv2002]

Works great now with brew update; brew cask install font-ibm-plex. Thanks all!