Last Update on Nov 23, 2015.
Ever add directories or files to Git that you did not intend to track? If you are using a repository hosting service, such as GitHub, these files can be accessed by anyone in the world with an Internet connection!
Often, these files can have sensitive information - passwords, user data, etc. - or, on the other hand, can simply contain settings files created by the operating system (e.g. .DS_Store) or text editor (e.g. .idea in Webstorm) you are using.
Yes, you can create a .gitignore that is local to your repository and add the directories and folders that you do not want tracked by Git. This is definitely the best approach to take for files that are unique to that repository, such as the files containing sensitive information mentioned earlier.
On the other hand, for files such as .DS_Store, placing them in a global .gitignore might be appropriate so that they are excluded from Git in any subsequent repositories created.
Below are steps to take to create a global .gitignore using your computer’s terminal.
Check whether a global .gitignore file exists.
$ git config --get core.excludesfile
If the commands does not return anything, move to step 2.
If the command returns a filename, skip to step 4.
Create a new file that will serve as a global .gitignore.
$ touch ~/.gitignore_global
The name given to the global .gitignore file can differ from the one used in the example.
~is shorthand for your home directory. In OS X, this is equivelant to
Set up Git’s
core.excludesfileconfiguration to use the global .gitignore file just created.
git config --global core.excludesfile ~/.gitignore_global
Open the global .gitignore file.
$ open ~/.gitignore_global
Note: If the command in step 1 returned a file name different than “gitignore_global”, open that file instead.
Finally, add the directories and files that you want to be in the global .gitignore and save the file.