Remove .DS_Store tracking in all Git repositories

Every time a new folder is created and files are added in macOS, a .DS_Store file is generated within that folder. This results in numerous .DS_Store files scattered across macOS, and it’s quite annoying to add **/.DS_Store to every .gitignore file each time a new Git repository is created. Therefore, I found a method to prevent .DS_Store files from being tracked in all Git repositories.

The git config command

The git config command can be used to set a variety of Git settings.
The most common uses are git config --global user.name and git config --global user.email,
which set user.name and user.email globally,
allowing all Git repositories to use these settings.

This command can also be used to set local settings for a single Git repository.
If we wish to use a different username or email within a specific repository,
we can use git config --local user.name and git config --local user.email to achieve this.

There is a core.excludesfile setting for git config,
which can be set to an ignore configuration file to specify files that all Git repositories should ignore.

Therefore, all we need to do is write .DS_Store and **/.DS_Store into a file,
and then set core.excludesfile to point to that file.
Then all Git repositories will ignore .DS_Store files.

We can achieve this by using these commands:

echo ".DS_Store" >> ~/.gitignore_global
echo "**/.DS_Store" >> ~/.gitignore_global
git config --global core.excludesfile ~/.gitignore_global