name: Automatic sync with Gitlab's read-only mirror

on: [workflow_dispatch, push]

jobs:
  mirror:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up SSH key for Runner
        env:
          SSH_KEY: ${{ secrets.GITLAB_DEPLOY_KEY }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_KEY" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts
          ssh-keyscan -t rsa gitlab.com >> ~/.ssh/known_hosts

      - name: Clone repository from GitHub as mirror and push to Gitlab
        env:
          REPO_ORIGINAL: "https://github.com/rehlds/metamod-r.git"
          REPO_TARGET:   "git@gitlab.com:rehlds/metamod-r.git"
        run: |
          git clone --mirror "$REPO_ORIGINAL" repo-mirror
          cd repo-mirror
          git remote set-url origin "$REPO_TARGET"
          git push --mirror --force