Git's upstream refers to a default remote branch for a given branch. Setting an upstream makes it easier to synchronize and compare changes between the branch and its corresponding remote branch.
Setting Up Upstream
git remote add upstream <original-repository-url>
This command configures the original repository as a new remote called "upstream".
Configuring an Upstream for a Branch
To set the upstream for a branch:
git branch --set-upstream-to=<remote>/<branch> <local-branch>
For instance, to set the main branch of the origin remote as the upstream for the local feature branch:
git branch --set-upstream-to=origin/main feature
Checking Upstreams
To view all local branches and their respective upstreams:
git branch -vv
Pushing to Upstream
To push changes from the current branch to its upstream:
git push
Pulling from Upstream
To pull changes from the upstream to the current branch:
git pull
By setting up upstreams, you no longer need to specify the remote name and branch name each time you run git push or git pull. This enhances the efficiency of your workflow.
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