Exclude file from tracking

Question

1. In .gitignore I added *.o.
2. I switched to my second branch (using console)
3. I created test.o with touch test.o
4. I used git pull
5. When I use git status I can see, that test.o is untracked, and can be tracked.

I expected that git will totally ignore test.o and dont metion about tracking. I cant use git add . now, because it will track test.o.

Is there a possibility to tell git to totally ignore test.o file?

Answer 1

I switched to my second branch

Does the branch have *.o in its .gitignore? If no — *.o files are tracked in the branch.

Have you committed the change in .gitignore? Merge or cherry-pick the commit into the second branch to propagate the change to the second branch. Or just edit and commit .gitignore again.