Prevent config-file from showing up as modified in git after commiting it once

Question

I commited a basic version (without passwords etc.) of my config-file to a git repo. Now I want it to not show up below "changes not staged for commit" as modified anymore so I can just use git add * without worrying that I commit my user-data.

Adding the file in question to .gitignore didn't help.

Answer 1

Try git update-index --assume-unchanged <path>.

But it's important to note, that a hard reset will revert this (stash for example makes a hard reset).