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Installing git, a version control system |
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git is a version control system, that means it is used to archive and share files in a way that makes it easy for collaborators to work in their changes. It is similar to Dropbox or Google Drive, but it's not real-time as they are. Instead, it records only the changes you did (e.g. removing a line, changing a word etc.) locally. When you're ready, you can pull the latest version from a remote repository (a lot of which are hosted on GitHub or GitLab). Git will try to work in your changes into whatever happened remotely. If everything went smoothly, you can push your changes back up. If not, you have to resolve a merge-conflict.
We recommend using git for a couple of reasons: There are some sessions which need git, so you can roll-back your changes quickly. But it also comes handy when setting up your local development environment! We will use it later to clone kata-bootstraps, a public repository that contains a lot of different starter projects for a variety of languages. And we will of course put your empty starter project under version control, too!
To install git, open a Terminal (Cmd+Space, type terminal, press Enter) and run brew install git. brew should automatically install git on your machine.
To verify that everything is working, open a terminal and type git --version, which should look something like this:
coderetreat@MacBook-Pro ~ % git --version
git version 2.24.3 (Apple Git-128)We are almost done here. As git is designed for teams that work on the same project, it needs your name and your email address. This will be public information for anyone who's looking at your projects and you can choose whatever yu want here.
In the terminal, type:
git --global config user.name "YOUR NAME"
git --global config user.email "[email protected]"
You're all set!