prevent weekly workflow from running on forks

    - cron: '0 0 * * 3'

jobs:

  check-token:

    name: "Check STYLES_WORKFLOW token"

    runs-on: ubuntu-latest

    if: ${{ github.repository == 'carpentries/lesson-example' }}

    outputs:

      wf: ${{ steps.validate.outputs.wf }}

      repo: ${{ steps.validate.outputs.repo }}

    steps:

      - name: "validate token"

        id: validate

        uses: carpentries/actions/check-valid-credentials@main

        with:

          token: ${{ secrets.STYLES_WORKFLOW }}

  bad-token:

    name: "Invalid/Missing Token"

    runs-on: ubuntu-latest

    needs: check-token

    if: ${{ needs.check-token.outputs.wf != 'true' && github.repository == 'carpentries/lesson-example' }}

    steps:

      - name: "Instructions to create a new token"

        run: |

          printf "::warning::The STYLES_WORKFLOW secret is missing, invalid, "\

          "or does not have the right scope to update workflows.\n"\

          "If you want to have automated pull request updates to your workflows, "\

          "you will need to generate a new token by visiting "\

          "https://github.com/settings/tokens/new?scopes=repo,workflow&description=Styles%%20Token\n"\

          "Once you have created the token, go to "\

          "https://github.com/${{ github.repository }}/settings/secrets/actions/STYLES_WORKFLOW "\

          "to update it."

  update-styles:

    runs-on: ubuntu-20.04

    runs-on: ubuntu-latest

    name: Styles Update

    needs: check-token

    if: ${{ needs.check-token.outputs.wf == 'true' && github.repository == 'carpentries/lesson-example' }}

    steps:

      - uses: actions/checkout@v2

        with: