update-description-topics.yml

name: Update DockerHub description
on:
  push:
    branches:
      - master
    paths:
      - Cargo.toml
      - .github/workflows/update-description-topics.yml
jobs:
  update-description-topics:
    name: Update the repository description and topics
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the code
        uses: actions/checkout@v2
      - name: Get the package name
        id: package
        run: |
            cargo_metadata="$(cargo metadata --format-version 1)"
            package_name="$(echo ${cargo_metadata} | jq -r '.workspace_members[0]' | cut -d' ' -f 1)"
            echo "::set-output name=description::$(echo ${cargo_metadata} | jq -c '.packages[] | select(.name == "'"${package_name}"'") | .description')"
            echo "::set-output name=keywords::$(echo ${cargo_metadata} | jq -c '.packages[] | select(.name == "'"${package_name}"'") | .keywords')"
      - name: Update the description
        uses: octokit/request-action@v2.x
        id: update_description
        with:
          route: PATCH /repos/{owner}/{repo}
          owner: ${{ github.repository_owner }}
          repo: ${{ github.event.repository.name }}
          description: ${{ steps.package.outputs.description }}
        env:
          GITHUB_TOKEN: ${{ secrets.EDIT_REPO_TOKEN }}
      - name: Update the topics
        uses: octokit/request-action@v2.x
        id: update_topics
        with:
          route: PUT /repos/{owner}/{repo}/topics
          mediaType: |
            previews:
              - mercy
          owner: ${{ github.repository_owner }}
          repo: ${{ github.event.repository.name }}
          names: ${{ steps.package.outputs.keywords }}
        env:
          GITHUB_TOKEN: ${{ secrets.EDIT_REPO_TOKEN }}