pr-handler.yml

name: Handle Pull Request
on:
  pull_request_target:
    types: [opened]

jobs:
  add-lando-link:
    runs-on: ubuntu-latest
    steps:
      - name: Add Lando link
        env:
          GH_TOKEN: ${{ github.token }}
          GH_REPO: ${{ github.repository }}
          PR: ${{ github.event.pull_request.number }}
          #
          # Set the following variables at the repository level [0].
          # [0] https://docs.github.com/en/actions/how-tos/write-workflows/choose-what-workflows-do/use-variables#defining-configuration-variables-for-multiple-workflows
          #
          LANDO_BASE_URL: ${{ vars.LANDO_BASE_URL }}
          LANDO_REPO: ${{ vars.LANDO_REPO }}
          #
          # If they are empty, the following will be used to determine sane defaults.
          #
          DEFAULT_LANDO_BASE_URL: https://lando.moz.tools
          GITHUB_REPO: ${{ github.repository }}
          TARGET_BRANCH: ${{ github.base_ref}}
        run: |
          LANDO_BASE_URL="${LANDO_BASE_URL:-${DEFAULT_LANDO_BASE_URL}}"
          # We extract the GitHub repo name and target branch to use as
          # default LANDO_REPO if unspecified.
          LANDO_REPO="${LANDO_REPO:-${GITHUB_REPO/*\//}-${TARGET_BRANCH}}"
          gh pr comment "${PR}" --body "[View this pull request in Lando](${LANDO_BASE_URL}/pulls/${LANDO_REPO}/${PR}) to land it once approved."