Introducing Node LookML Parser - https://www.npmjs.com/package/lookml-parser
(Disclaimer: I made this myself - it is provided 100% as-is, without warranty, and probably unwarranted!)
It’s an open-source Nodejs module which can be used from the command line, or as a dependency in your Nodejs application. It can process either a single string of LookML, or a whole directory of files, and outputs the results into an easy-to-navigate JSON-compatible object.
Here’s what it looks like on the command line: