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How to merge two or multiple git repositories into one

P.S. Not endorsing Chromebooks.

Use Cases:

  • If there are two similar libraries and both of the maintainers come together to combine it.
  • And sometimes, you don’t have a choice but to have a single repository for the project.
  • Repo A
  • Repo B
  • Repo C: This is the Repo C, where I want to merge Repo A and Repo B.

Steps to merge git repositories

git remote add -f repo-a
git merge repo-a/master
fatal: refusing to merge unrelated histories
git merge repo-a/master --allow-unrelated-histories

Repeat the same steps for Repo B,

git remote add -f repo-b
git merge repo-b/master --allow-unrelated-histories
Screenshot of commits of Repo C

Exercise for learning to merge two git repositories into one:

The file content merged from repo-a and repo-b.
  • Fork repo-c.
  • Create a new repo named mars or it can be your city or country name.
  • Merge mars repo to forked repo-c.
  • Create the pull request to repo c.

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Vaibhav Mule

College Dropout, Full-Stack Developer, and Aspiring Entrepreneur.