Working with remotes¶
In this section you will:
- add a remote repository to your local clone
- fetch remote information
- checkout a remote branch
- merge an upstream branch
Your repository on GitHub is the remote for the clone on your local machine. By default, your clone refers to that remote as origin. At the moment, it’s the only remote you have:
$ git remote origin $ git remote show origin * remote origin Fetch URL: firstname.lastname@example.org:evildmp/afraid-to-commit.git Push URL: email@example.com:evildmp/afraid-to-commit.git HEAD branch: master Remote branches: amend-my-name tracked master tracked Local branch configured for 'git pull': master merges with remote master Local refs configured for 'git push': amend-my-name pushes to amend-my-name (up to date) master pushes to master (up to date)
It’s very useful for Git to know about other remote repositories too. For example, at the end of the previous section, we considered a conflict between your GitHub fork and and the upstream GitHub repository. The only way to fix that is locally, on the command line, and by being able to refer to both those remotes.
Now you can refer to a remote using its full address:
But just as your remote is called origin, you can give any remote a more memorable name. Your own origin has an upstream repository (mine); it’s a convention to name that upstream.
Add a remote¶
git remote add upstream firstname.lastname@example.org:evildmp/afraid-to-commit.git
Fetch remote data¶
The remote’s there, but you don’t yet have any information about it. You need to fetch that:
git fetch upstream
This means: get the latest information about the branches on upstream.
List remote branches¶
git branch shows your local branches.
To see a list of them all, including the remote branches:
git branch -a
Checkout a remote branch¶
You’ll have seen from
git branch -a that there’s a branch called
additional-branch on the upstream repository.
You can check this out:
git checkout -b additional-branch upstream/additional-branch
This means: create and switch to a new local branch called additional-branch, based on branch additional-branch of the remote upstream.
Managing master on the commandline¶
Until now, you have only updated your master on GitHub using GitHub itself. Sometimes it will be much more convenient to do it from your commandline. There are various ways to do it, but here’s one:
git checkout master # switch back to the master branch git fetch upstream # update information about the remote git merge upstream/master # merge the changes referred to by upstream/master
git status will tell you that your local master is ahead of your master
Push your changes to master:
git push origin master
And now your master on GitHub contains everything my master does; it’s up-to-date and clean.