Adding PlantUML to brew services

[medecau]

Output of brew config

HOMEBREW_VERSION: 4.1.15
ORIGIN: https://github.com/Homebrew/brew
HEAD: e57a87cfe9c15f192cd4fc6695a2b3b7acf0ddf7

Output of brew doctor

Your system is ready to brew.

Description of issue

PlantUML has a server option that is very useful when generating many diagrams, or working on one with frequent updates, think: updating a diagram on vscode.

It would be extra nice if one could brew services start plantuml to have it always running in the background.

The server can be started with
plantuml -picoweb

More info: https://plantuml.com/picoweb

I am not familiar with ruby, brew formula files, or the brew PR process, and I'm afraid of making a fool of myself by attempting this.

pinging @fxcoudert. You're the only person that shows up on the blame for the plantuml formula.

[SMillerDev]

I am not familiar with ruby, brew formula files, or the brew PR process, and I'm afraid of making a fool of myself by attempting this.

I don't think anyone who wants to contribute to open source projects is a fool. https://docs.brew.sh/Updating-Software-in-Homebrew can help you with the basic process, and for the syntax you can just check any existing service do block or the documentation at https://docs.brew.sh/Formula-Cookbook#service-files. And when you're stuck, just make a draft PR and tag me. It's much easier to do this than you might think.