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Collaborative distributed version control

We have learned how to make a git repository for a single person. What about sharing?

  • Sharing by email or manually: isn't fun and doesn't scale, projects are limited to the time and cognition of one person.
  • One person's repository on the web: allows one person to keep track of more projects, gain visibility, feedback, and recognition.
  • Centralized: everyone can directly update the same repository. Good for small groups.
  • Distributed: anyone can suggest changes, even without advance permission. Maintainers approve what they agree with.

Being able to share more easily (going down the list here) is transformative because it allows projects to scale to a new level. This can't be done without proper tools.

In this lesson we will learn how to keep repositories in sync and how to work with remote repositories on GitHub and other services. We will discover and exercise the centralized as well as the forking workflows, and finally look into how to automate tasks using Git hooks.

Prerequisites

  1. Basic understanding of Git.
  2. You need a GitHub account.

We will do this exercise on GitHub but also GitLab and Bitbucket allow similar workflows and basically everything that we will discuss is transferable. With this material and these exercises we do not endorse the company GitHub. We have chosen to demonstrate a number of concepts using examples with GitHub because it is currently the most popular web platform for hosting Git repositories and the chance is high that you will interact with GitHub-based repositories even if you choose to host your Git repository on another platform.

We also encourage course participants to use our new Nordic research software repository platform, for more information see https://coderefinery.org/repository/. {: .prereq}