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Update a GitHub Fork

A typical flow when contributing to open source software on GitHub is:

  • Fork project to personal account
  • Work on fork
  • Keep fork updated with "upstream" changes in main project

For example, one time:

git clone git@github.com:croaky/dotfiles.git
cd dotfiles
git remote add upstream git@github.com:thoughtbot/dotfiles.git

On each update, from the local forked master branch:

git fetch upstream
git rebase upstream/master

The goal of the rebase is to have a cleaner history if there are local commits in the forked repo.