Git is a modern and widely used version control system. We assume that you have already worked with another version control system and will solely focus on some Git basics and how this is can be used in the context of Saros. The central concept is a Git Repository, it is located in the .git/ subdirectory and holds the entire history of the project (branches, commits, all versions of files). The Git checkout command takes a specific revision from your local repository and updates, adds and removes files from your Git working directory to match the state of that revision. Git commit allows you to create a local commit that will be stored in your local Git Repository. The Git Index is a unique concept that represents the state that will be used for the next commit. You will mostly use it to add a new file, remove an existing one. An advanced usage of the Git Index is to partially add modifications of a file to the index, in the beginning you will probably not want to use that specific feature though. Git allows you to create local branches that are branched off any Git commit that is already in the local Git Repository. In case you created a Git Commit too quickly you can always amend to the last one. Once you want to share your changes you will need to Git push, this will move your local changes to the remote Git Repository. To get changes from a remote Git Repository you will need to use the Git pull. This will transfer all commits from the remote repository to your local one and it will try to move your changes to the top of the history. The last operation is called a Git rebase.

There are plenty of Git introductions available on the web, some describe the technical details, some are for people coming from Subversion, some show how to use the Eclipse integration. The Git website has a documentation section with links to good documentation. If the following guide is not enough you should be able to find information there.