Syncing a fork with upstream

I am writing this blog because at first most of the newbie open source contributor face this problem while working on the second issue after successfully solve the first issue. Let me tell you my story when I first solved my issue of the pontoon project and took the second issue for solving. I eventually solved the second issue and open a PR for that and saw that my PR contains the code which I changed for the first issue. But I couldn’t figure out what wrong with it. So I asked my project mentor what is the problem and he told me that I haven’t updated my fork with the upstream. So let’s come to the point how to do it 😉

  • Open terminal.
  • Go to your project directory.
  • And execute this –
    $ git remote -v
    > origin (fetch)
    > origin (push)
  • Specify a new remote upstream repository that will be synced with the fork.
    $ git remote add upstream
  • Verify the new upstream repository you’ve specified for your fork.
    $ git remote -v
    > origin (fetch)
    > origin (push)
    > upstream (fetch)
    > upstream (push)

Now you have set up the upstream with the project GitHub link and you have to fetch all the latest data from that upstream project and push to your fork repo. Now let’s see how it works 😉

  • Fetch the branches and their respective commits from the upstream repository. Commits to master will be stored in a local branch, upstream/master.
    $ git fetch upstream > remote: Counting objects: 75, done. > remote: Compressing objects: 100% (53/53), done. > remote: Total 62 (delta 27), reused 44 (delta 9) > Unpacking objects: 100% (62/62), done. > From >  * [new branch]      master     -> upstream/master
  • Check out your fork’s local master branch.
    $ git checkout master > Switched to branch 'master'
  • Merge the changes from upstream/master into your local master branch. This brings your fork’s master branch into sync with the upstream repository, without losing your local changes.
    $ git merge upstream/master
    > Updating a422352..5fdff0f
    > Fast-forward
    >  README                    |    9 -------
    >                 |    7 ++++++
    >  2 files changed, 7 insertions(+), 9 deletions(-)
    >  delete mode 100644 README
    >  create mode 100644

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