name: Verify Contributor License Agreement

on: [pull_request]

jobs:
  cla-validate:

    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v1
    - name: Check CLA signing status for ${{ github.event.pull_request.user.login }}
      run: |
        cat > unsigned-cla.txt <<EOF
          Hello ${{ github.event.pull_request.user.login }},

          Thank you for your contribution to cloud-init.

          In order for us to merge this pull request, you need
          to have signed the Contributor License Agreement (CLA).
          Please sign the CLA by following our
          contribution guide at:
            https://cloudinit.readthedocs.io/en/latest/topics/contributing.html

          Thanks,
          Your friendly cloud-init upstream
        EOF

        has_signed() {
            username="$1"
            grep -q ": \"$username\"" ./tools/.lp-to-git-user && return 0
            grep -q "^$username$" ./tools/.github-cla-signers && return 0
            return 1
        }

        if has_signed "${{ github.event.pull_request.user.login }}"; then
            echo "Thanks ${{ github.event.pull_request.user.login }} for signing cloud-init's CLA"
        else
           cat unsigned-cla.txt
           exit 1
        fi