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How to push to multiple git remotes at once. Useful if you keep mirrors of your...

 1 year ago
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Pushing to Multiple Git Repos

If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.

Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.

If in doubt about what git is doing when you run these commands, just edit .git/config (git-config(1)) and see what it's put there.

Remotes

Suppose your git remotes are set up like this:

git remote add github [email protected]:muccg/my-project.git
git remote add bb [email protected]:ccgmurdoch/my-project.git

The origin remote probably points to one of these URLs.

Remote Push URLs

To set up the push URLs do this:

git remote set-url --add --push origin [email protected]:muccg/my-project.git
git remote set-url --add --push origin [email protected]:ccgmurdoch/my-project.git

It will change the remote.origin.pushurl config entry. Now pushes will send to both of these destinations, rather than the fetch URL.

Check it out by running:

git remote show origin

Per-branch

A branch can push and pull from separate remotes. This might be useful in rare circumstances such as maintaining a fork with customizations to the upstream repo. If your branch follows github by default:

git branch --set-upstream-to=github next_release

(That command changed branch.next_release.remote.)

Then git allows branches to have multiple branch.<name>.pushRemote entries. You must edit the .git/config file to set them.

Pull Multiple

You can't pull from multiple remotes at once, but you can fetch from all of them:

git fetch --all

Note that fetching won't update your current branch (that's why git-pull exists), so you have to merge -- fast-forward or otherwise.

For example, this will octopus merge the branches if the remotes got out of sync:

git merge github/next_release bb/next_release

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