A GitHub Action for syncing between two independent repositories using force push.

• Sync branches between two GitHub repositories
• Sync branches to/from a remote repository
• GitHub action can be triggered on a timer or on push
• To sync with current repository, please checkout Github Repo Sync

Always make a full backup of your repo (git clone --mirror) before using this action.

# .github/workflows/git-sync.yml

on: push
jobs:
  git-sync:
    runs-on: ubuntu-latest
    steps:
      - name: git-sync
        uses: wei/git-sync@v3
        with:
          source_repo: "source_org/repository"
          source_branch: "main"
          destination_repo: "destination_org/repository"
          destination_branch: "main"
          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }} # optional
          source_ssh_private_key: ${{ secrets.SOURCE_SSH_PRIVATE_KEY }} # optional, will override `SSH_PRIVATE_KEY`
          destination_ssh_private_key: ${{ secrets.DESTINATION_SSH_PRIVATE_KEY }} # optional, will override `SSH_PRIVATE_KEY`

You can use GitHub repo shorthand like username/repository.

The ssh_private_key, or source_ssh_private_key and destination_ssh_private_key must be supplied if using ssh clone urls.

source_repo: "git@github.com:username/repository.git"

or

source_repo: "git@gitlab.com:username/repository.git"

The ssh_private_key, source_ssh_private_key and destination_ssh_private_key can be omitted if using authenticated https urls.

source_repo: "https://username:personal_access_token@github.com/username/repository.git"

You only need to set up deploy keys if repository is private and ssh clone url is used.

• Either generate different ssh keys for both source and destination repositories or use the same one for both, leave passphrase empty (note that GitHub deploy keys must be unique for each repository)

$ ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

• In GitHub, either:

  • add the unique public keys (key_name.pub) to Repo Settings > Deploy keys for each repository respectively and allow write access for the destination repository

  or

  • add the single public key (key_name.pub) to Personal Settings > SSH keys

• Add the private key(s) to Repo > Settings > Secrets for the repository containing the action (SSH_PRIVATE_KEY, or SOURCE_SSH_PRIVATE_KEY and DESTINATION_SSH_PRIVATE_KEY)

To Sync all branches from source to destination, use source_branch: "refs/remotes/source/*" and destination_branch: "refs/heads/*". But be careful, branches with the same name including master will be overwritten.

source_branch: "refs/remotes/source/*"
destination_branch: "refs/heads/*"

To Sync all tags from source to destination, use source_branch: "refs/tags/*" and destination_branch: "refs/tags/*". But be careful, tags with the same name will be overwritten.

source_branch: "refs/tags/*"
destination_branch: "refs/tags/*"

$ docker run --rm -e "SSH_PRIVATE_KEY=$(cat ~/.ssh/id_rsa)" $(docker build -q .) \
  $SOURCE_REPO $SOURCE_BRANCH $DESTINATION_REPO $DESTINATION_BRANCH

Wei He github@weispot.com

MIT