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Comment by AdmiralAsshat | Hacker News Reader

Now what I would really like to see is some tool for keeping my GitHub repos in sync with my GitLab ones.

I did a one-time migration from GH to GL, but my GH account is still open, primarily because some projects are GH-only, meaning I might continue to make forks, contributions, etc.

Some way of making sure that I can periodically get all of those over to my GL would be nice.

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Thanks for using GitLab! Please also see https://docs.gitlab.com/ee/workflow/repository_mirroring.htm... Pushing free to use, pulling is paid feature but public projects can use it for free too.

Git is after all designed for this distributed scenario, so you'd think it would be possible, what about something like:

Setup:

    git add remote gitlab ...
    git add remote github ...

Then whenever you need to sync:

    git fetch --all
    git checkout -b gh --track github/master
    git checkout --track gitlab/master
    git merge/rebase gh
    git push gitlab

Could probably be done shorter but those steps should do it..

This has the issue that you have to add this to your Workflow and nice wrappers have to be put on all workstations.

A mirroring setup like provided in GitLab (see sibling post) takes that burden away.

Check out the `--mirror` flag.

Not that I'm all that good at the more esoteric features of git, but you can overwrite the history with the correct flags, right? It seems like all you would need to do to sync them is have the most recent checkout of each, a way to determine which was newer, and push the newer branch over the older one (to be simplistic and destructive).

If you're always overwriting history of one to make it match the other, diffing the git logs of each against each other would likely tell you which had items the other didn't, and if it went just one direction or both (i.e. can you just overwrite one with the other or is some manual intervention required).

The git repo itself is the easy part. You just make a local clone with two remote repos, pull from one, and push to the other. The hard part is all the parts that aren't managed by git, the issue tracker, PRs, releases, etc.

I‘m using the setup linked below to sync a few repos to gitlab. It uses GL pipelines to do the sync, and a webhook to do it instantly (however you can trigger pipelines using curl, or on a timer in GL)

https://gist.github.com/cfstras/5e40ea264517552e29caf61bbd28...

Gitlab itself supports being a mirror of an upstream GitHub remote (or any remote). Last I checked it doesn't deal well with force pushes but I haven't checked in a long time.

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