问题

I've an existing repository on Gitlab / Github. I want a duplicate of that under the same group with a different repo name.

Note: Thought the answers might be similar to another question, I was not able to find the said another question by googling, I'm guessing other users might be unable to do so either.

回答1:

Duplicating a repository

To duplicate a repository without forking it, you can run a special clone command, then mirror-push to the new repository.

Before you can duplicate a repository and push to your new copy, or mirror, of the repository, you must create the new repository on GitHub/Gitlab. In these examples, exampleuser/new-repository is the mirrors.

Mirroring a repository

1. Open (windows) Git Bash

You can use (mac)Terminal / (linux)Terminal as well

2. Create a bare clone of the repository.

git clone --bare https://github.com/_exampleuser_/_old-repository_.git

3. Mirror-push to the new repository.

cd _old-repository_.git
git push --mirror https://github.com/_exampleuser_/_new-repository_.git

4. Remove the temporary local repository you created in step 1.

reference: https://help.github.com/articles/duplicating-a-repository/

回答2:

In gitlab there is functionality out of the box:

Go to Settings -> General of existing project
Last expanded panel Advanced contains Export button. Click it and then on the top of this page you can see info message Project export started. A download link will be sent by email.
Check email. There is following message:

Project NAME_OF_YOUR_EXISTING_PROJECT was exported successfully.

The project export can be downloaded from: SOME_LINK

The download link will expire in 24 hours.