git

git is a version control software. With it, you can download repositories, track your changes and develop code collaboratively.

install git

This is tedious, but needs to be done only once.

Create a github account at https://github.com/join
Download and install git, see https://git-scm.com/downloads
Restart Rstudio (if open)
Connect git to Rstudio: (instructions with screenshots)
- RStudio -> Tools -> Global Options -> Git/SVN: Ensure the path to the Git executable is correct.
- Create SSH Key, close window
- View public key: copy the displayed public key
- go to https://github.com/settings/keys and click New SSH key, paste the public key
- in the RStudio bottom Tab Terminal: type the following:
```
git version # just to see git works fine
git config --global user.email "YourEmail@domain.com"
git config --global user.name "YourUserNameHere"
```

use git

To clone a git repo, Rstudio handles most the work for you.

1. Go to github.com/brry/course - Code - Copy URL

1. At Rstudio - File - New Project - Version Control - Git,
  paste the repository URL, set the subdirectory and create project.
  I recommend to keep the Project directory name so local and github folder names match exactly.

1. From now on, get the latest version with a single click on Pull:

git resources

Happy Git with R: https://happygitwithr.com
Excellent tutorial on git in general (mostly without Rstudio): http://kbroman.org/github_tutorial
HPI course: https://open.hpi.de/courses/git2020
Contribute to OS software: https://egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github