on: [push]
jobs:
  ls:
    runs-on: docker    
    steps:
      - name: Manually checkout
        env:
          REPO: '${{ github.repository }}'
          TOKEN: '${{ secrets.GITHUB_TOKEN }}'
          GIT_SERVER: 'git.php.fail'
        run: |
          git clone --branch $GITHUB_REF_NAME https://${TOKEN}@${GIT_SERVER}${REPO}.git .
          git fetch
          git checkout ${{ github.head_ref }}         
      - run: ls
      - run: env | sort