How to make Logwatch track git commits

I have a webserver with a git repo containing a website. I have made a CMS using PHP where PHP automatically commits to git when files are changed. I would like to track these commits (preferably in a form close to git log --name-status to show added/deleted files) using Logwatch. I have read about creating custom Logwatch services, but Logwatch is all really new to me and that didn't really get me anywhere.