How do I merge two different repositories?

Question

I have two repositories, one in Bitbucket and the other in Github.

What I want to do is: merge Bitbucket's repository into Github repository while keeping the commit history of Bitbucket's repository. After merging, Github's repo should have its own commit history alongside Bitbucket's repository commit history. I would like to avoid creating a new repository in Github.

How do I do the above using git?

Does it help? https://stackoverflow.com/questions/1425892/how-do-you-merge-two-git-repositories — Shredator, Jan 10 '20 at 07:20
Add the other `git remote`, `git fetch` the repo and use `git merge` for the branches. — UserASR, Jan 10 '20 at 07:24

Saurabh P Bhandari · Accepted Answer · 2020-01-10T08:14:49.990

0

You can try this

Clone GitHub repository
```
git clone <github-repo-url>
```
Add Bitbucket repository as remote in the cloned repository
```
git remote add <some-remote-name> <bitbucket-repo-url>
```

Merge the new remote branch with option --allow-unrelated-histories

git fetch <some-remote-name>
git merge --allow-unrelated-histories <remote-name>/<branch-name>

Push to GitHub remote with --force option
```
git push --force <github-remote-name>
```

Note that the merge operations might lead to merge conflicts. You can have a look at this How do you merge two Git repositories? for more options.

edited Jan 10 '20 at 08:14

answered Jan 10 '20 at 07:20

Saurabh P Bhandari

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I see, this works too if I want to merge them both in the opposite direction (i.e. assimilating Github repo to Bitbucket repo), right? – Richard Jan 10 '20 at 08:16
@Richard, yes it should, a bit of caution with the `force` option though – Saurabh P Bhandari Jan 10 '20 at 08:18
Thank you, I will try the above when I have access to both repos and update you. – Richard Jan 10 '20 at 08:20

score 0 · Answer 2 · answered Jan 10 '20 at 07:32

You can take a look at git mirror here https://help.github.com/en/github/creating-cloning-and-archiving-repositories/duplicating-a-repository#mirroring-a-repository-in-another-location

It will allow you to automatically pull changes to github when you push to bitbucket.

How do I merge two different repositories?

2 Answers2