Chapter 21 Git commands
Here’s a start on the various Git commands that have been largely going on under the hood. We’ve tried to pick workflows that have RStudio doing this for us. But all of this can be done from the command line.
Unless you use the GitHub API, most of the GitHub bits really have to be done from the browser.
New local git repo from a repo on GitHub:
git clone https://github.com/jennybc/happy-git-with-r.git
Check the remote was cloned successfully:
git remote --verbose
Stage local changes, commit:
git add foo.txt git commit --message "A commit message"
Check on the state of the Git world:
git status git log git log --oneline
Add a remote to existing local repo:
git remote add origin https://github.com/jennybc/happy-git-with-r git remote --verbose git remote show origin
Push local master to GitHub master and have local master track master on GitHub:
git push --set-upstream origin master ## shorter form git push -u origin master ## you only need to set upstream tracking once!
git push ## the above usually implies (and certainly does in our tutorial) git push origin master ## git push [remote-name] [branch-name]
Pull commits from GitHub:
Pull commits and don’t let it put you in a merge conflict pickle:
git pull --ff-only
Switch to a branch
git checkout [branch-name]
Checking remote and branch tracking
git remote -v git branch -vv