Git

Which Git host you use depends on your class. Some classes use the UCSC-hosted GitLab server; others use GitHub. Check your syllabus or the first assignment for which one applies to you — the instructions below only apply if your class is on UCSC GitLab. If your class is on GitHub, follow GitHub’s own getting-started guide and skip the rest of this page.

UCSC GitLab

We will be using the UCSC GitLab server at:

https://git.ucsc.edu

Note that this is not GitHub! We will create a repository for this class for you to submit assignments in.

There is a lot of information provided by UCSC at:

https://its.ucsc.edu/gitlab/resources.html

Learn git

Git is frequently used in large projects to aid collaboration among multiple developers by tracking revisions. Git is installed on our guest Linux image. You should go through the following git tutorial to learn how to use basic git commands:

https://gitimmersion.com/

Key-based authentication

Once you are familiar with the basics of git, you should generate an SSH public/private key pair on your computer by doing the following:

ssh-keygen

You can leave the password empty for convenience, or else, you can type the password each time you do a git command on the remote server. This will generate two files ~/.ssh/id_rsa and ~/.ssh/id_rsa.pub which are your private and public key, respectively. These will be used to authenticate to the git server to clone the repository and push your assignments.

Add your public key to your GitLab settings by clicking on your icon in the upper right and selecting “Preferences”. On the left hand side menu, select “SSH Keys” on the left side as shown here:

Paste the public key into the space provided and click ``Add key’’ to add it.

More information on ssh is availble at:

https://docs.gitlab.com/ee/user/ssh.html

Cloning your repo

You can now clone your personal repository for the class by typing:

git clone git@git.ucsc.edu:cse122/w25/userid.git newname

where userid is your UCSC ID and newname is what you want to call the repository on your local machine. Note: All students use cse122 above including those in CSE 222A! You can now use normal git commands in your repository.

If you are new to git, you can (and should!) use the web page to confirm files in your repository:

https://git.ucsc.edu/cse122/w25/userid

where userid is your UCSC ID.