Ignore all .DS_Store files globally

If you use Git on a Mac, you’ve probably accidentally committed a .DS_Store file to a repo at least once. I used to add .DS_Store to every .gitignore file to avoid this, but there’s a better way!

You can create a global .gitignore file that applies to all your repositories. Just run this command:

git config --global core.excludesFile '~/.gitignore'

Then, add .DS_Store to your ~/.gitignore file:

echo ".DS_Store" >> ~/.gitignore

This command adds the following to your ~/.gitconfig:

[core]
    excludesFile = ~/.gitignore

Now, .DS_Store files will be ignored across all your projects, no more accidental commits!

You can directly edit the ~/.gitignore file to globally ignore many other files.