I maintain spi-tools.js. The source is in github. At the moment, my "release process" (if you could call it that) is to edit
User:RoySmith/spi-tools.js and copy-paste the new version. This works, but it's clunky. Is there some pre-existing tool for this?

I could build some little tool to to do this, but if something already exists, no need to reinvent the wheel.