What are git credentials?
Git credentials are the username and password you use for login to a repository on a dedicated server. Saving them allows you to avoid typing your username and password when they are required (mainly pull and push operations).
Why saving git credentials?
The use of SSH and GPG keys is available on most popular git servers such as on gitlab or on github websites. It allows the user to avoid typing their username and password.
Some website does not support this functionality (overleaf git server for instance). Also, if you are like me, you use a multitude of git servers (and configuring each SSH keys become a pain).
Save git credentials
To save the credentials of every repository you log into, just type this:
git config credential.helper store
And you are good to go. You will be asked only once for the credentials of each server dedicated to a repository. Next time, it will automatically be filled (silently without asking for credentials).
For security reasons (especially if you are not on your personal computer), it is better that the stored credentials expire after a certain amount of time. Let’s say you want that delay being 4 hours. You just have to type:
git config --global credential.helper 'cache --timeout 14400'
14400 is then the time in seconds (our 4 hours).
Hope it helps some of you.