Remove .DS_Store files from the repository

It's very annoying under macOS when creating a new repo we occasionally see the dreaded .DS_Store files appear. So here is how to remove those annoying Mac OS X .DS_Store files from a Git repository.

First remove the existing .DS_Store files from the repository:

find . -name .DS_Store -print0 | xargs -0 git rm -f --ignore-unmatch

Then add this line:

.DS_Store

to the file .gitignore, which can be found at the top level of your repository (or create the file if it isn't there already). You can do this easily with this command in the top directory:

echo .DS_Store >> .gitignore
Then commit the file to the repo:

git add .gitignore

All done.