name: Mirror to Codeberg
on:
  push:
    branches:
      - main
    tags:
      - '*'

jobs:
  mirror:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Push to Codeberg
        env:
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY_CODEBERG }}
          REPO_URL_CODEBERG: ${{ secrets.REPO_URL_CODEBERG }}
        run: |
          set -euxo pipefail

          mkdir -p ~/.ssh
          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          cat >> ~/.ssh/config <<EOF
          Host codeberg.org
            IdentityFile ~/.ssh/id_ed25519
            StrictHostKeyChecking no
          EOF

          git config --global user.name "GitHub Actions"
          git config --global user.email "github-actions@github.com"

          git remote add codeberg "$REPO_URL_CODEBERG"
          git push --tags --force --prune codeberg "refs/remotes/origin/*:refs/heads/*"