A Guide to Setting Up Git Source Control with MATLAB & Simulink

A Guide to Setting Up Git Source Control with MATLAB & Simulink

Git is a powerful version control system that allows developers to track changes in their code and collaborate effectively. If you're a MATLAB or Simulink user, integrating Git source control into your workflow can greatly enhance your productivity and code management. In this article, we'll walk you through the process of setting up Git source control in MATLAB and Simulink, ensuring smooth collaboration and efficient code management.

Before we dive into the steps, it's important to note that Git requires an SSH key for secure communication with remote repositories. Let's start by generating an SSH key using the ssh-keygen command. Open a Terminal window and enter the following command:

ssh-keygen -t ed25519 -C "[email protected]"

This command prompts you to confirm where to save the key and asks for a passphrase. If you don't want to type a password every time you use the key, leave the passphrase empty. If you already have keys in the specified folder, ssh-keygen will ask if you want to override them.

It's worth mentioning that prior to R2021a, you need to specify the -m PEM option to generate an SSH key in the RSA format. For example, enter this command in the Terminal:

ssh-keygen -m PEM

If you've generated an SSH key without the -m PEM option, don't worry. You can convert your key to the supported RSA format using the following command, where ~/.ssh/id_rsa is the name of the SSH key file:

ssh-keygen -p -m PEM -f ~/.ssh/id_rsa

Now that you have your SSH key, it's time to place it in the appropriate folder. MATLAB uses the HOME/.ssh folder for SSH keys. To verify which HOME folder MATLAB is working with, enter the following command in the MATLAB Command Window:

getenv('HOME')

Once you've located the correct HOME folder, move your SSH keys to the HOME/.ssh directory.

To ensure that MATLAB detects your SSH keys, execute the following commands in the MATLAB Command Window:

git = settings().matlab.sourcecontrol.git;
git.PrivateKeyFile.PersonalValue = "~/.ssh/id_ed25119";
git.PublicKeyFile.PersonalValue = "~/.ssh/id_ed25119.pub";

If you entered a passphrase when generating the SSH key, you can configure MATLAB to use the passphrase and receive a prompt only once per session. To do this, you can either use an SSH agent or enter the following command in the MATLAB Command Window:

git.KeyHasPassphrase.PersonalValue = true;

If you need to use multiple keys, it's recommended to utilize an SSH agent. When an SSH agent is running, MATLAB will look for keys in the agent before searching in HOME/.ssh.

Finally, you'll need to configure your GitHub or GitLab account to recognize and use your SSH keys. To do this, navigate to the .ssh folder and copy the contents of the .pub file. Then, go to your account settings on the respective platform and paste the contents of the .pub file into the "Add SSH key" field.

By following these steps, you have successfully set up Git source control in MATLAB and Simulink. Now, you can enjoy the benefits of version control, seamless collaboration, and efficient code management.

In conclusion, integrating Git source control into your MATLAB and Simulink workflow is a crucial step towards enhancing your productivity as a developer. By following the steps outlined in this article, you can ensure that your code is well-managed, easily accessible, and ready for collaborative work. Remember, version control is not just a tool; it's a mindset that promotes efficient and organized development practices.

To summarize the key points discussed:

1. Generate an SSH key using the ssh-keygen command, ensuring the correct format and passphrase configuration.
2. Place your SSH keys in the HOME/.ssh folder to allow MATLAB to detect them.
3. Configure your GitHub or GitLab account to recognize and use your SSH keys.

By implementing these actionable steps, you'll be well on your way to leveraging the power of Git source control in MATLAB and Simulink. Happy coding and collaborating!

(Note: The content in this article is based on best practices and general instructions for setting up Git source control in MATLAB and Simulink. The exact steps may vary depending on your specific setup and requirements.)