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In this article, we will learn how to use in Git upstream. When using Git by cloning and creating new repositories in branches, we must set up upstreambranches for future commits and fetches. But first, we should understand what is upstreama branch and how it works. upstreamBranches are closely connected with remote branches.

upstreamA branch can be defined as the branch that our local branch (also called remote tracking branch) follows on the remote repository. When we need to set the default remote branch to our current local branch, we have to run git upstreamthe command.

Locally, this command is used to set up the Upstream:

git branch --set-upstream <remote-branch>

Additionally, the options mentioned below are also available:

Setting Upstream Branches with Git Push

The easiest way to set an upstream branch is to use git pushthe command with the -remote option for upstream branches -u. The following command will set a local branch to the remote branch using the branch name.

$ git push -u <remote> <branch>

Instead, you can use the -p option which is similar to -uthe -p option --set-upstream, which sets your local branch to be the remote branch.

$ git push --set-upstream <remote> <branch>

Let's take an example if we create a branchbranch called using the checkout command.

$ git checkout -b branch

It switches to a new branch branch.

--set-upstreamOne way to avoid having to type exactly is to use its short version -u, like this:

git push -u origin local-branch

This will easily set the Upstream association for any future push or pull commands. When we need to push to a remote repository and explicitly use in the command --set-upstream, it will set the branch we push to as a remote tracking branch in our local environment.

If we add a remote branch and use it in the command --set-upstream, it means Git knows what to do in the future when we do Git fetch, Git pull, or Git push. It keeps local and remote branches up to date by tracking and maintaining pull and push commands.