This is a how to guide / hack approach for storing Etherpad contents as git commits.
Create git repo
Using your favorite tool / platform. In this instance we use Github to create a new repository called etherpad-storage
Clone git repo
git clone repoURL ~/etherpad-storage
Edit Etherpad settings
Open up settings.json
Replace dirty_db.js with dirty_git_db.js
Replace var/dirty.db with ~/etherpad-storage/dirty.db
Grab the new logic
Grab dirty_git_db.js and put it in your src/node_modules/ueberdb2 folder. Ideally this would be how you do it
curl https://gist.githubusercontent.com/JohnMcLear/3a57977ea4dad39b021b8ee8aac2a730/raw/8a025ec3d4fbeef6cc5520e89ea3eb52c10a7737/dirty_git_db.js -o src/node_modules/ueberdb2/dirty_git_db.js
Install simple-git
From within your Etherpad folder..
cd src/node_modules/ueberdb2 && npm install simple-git
Restart and test.
Restart Etherpad, when you type in a pad your changes should be committed to github and your console should be filled with log messages you will probably want to remove..
Conclusion
This is just a simple hack, it’s not designed for production but it might be useful for someone as reference. The goal ultimately is to create a plugin that provides this functionality. It should be easy enough to do!