lighthouse-ci.yml

name: lighthouse ci

on: [push]

env:
    LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}

jobs:
  build-ci:
    name: build site and run lighthouse ci
    runs-on: ubuntu-latest

    steps:
      - name: checkout repository
        uses: actions/checkout@v4

      - name: Get Hugo version
        run: echo "HUGO_VERSION=$(cat .hugo_version)" >> $GITHUB_ENV

      - name: setup hugo
        uses: peaceiris/actions-hugo@v2
        with:
          hugo-version: ${{ env.HUGO_VERSION }}
          extended: true

      - name: Get node version from package.json
        run: echo "NODE_VERSION=$(cat package.json | jq -r '.volta.node')" >> $GITHUB_ENV

      - name: setup node.js
        uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: fetch js dependencies from cache
        uses: actions/cache@v3
        with:
          path: ~/.npm
          key: npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            npm-${{ hashFiles('package-lock.json') }}
            npm-

      - name: install js dependencies
        run: npm ci

      - name: build site
        run: hugo --minify

      # this step makes the site's built html and css available for download
      # from github; see the run in github actions to access it as a zipfile.
      # we don't export image derivatives because it makes the build a lot
      # slower.
      - name: export built files for download
        uses: actions/upload-artifact@v3
        with:
          name: public
          path: |
            public/
            !public/issues/**/images/

      # lighthouse is configured using the lighthouserc.js file in the project
      # root, see that file for more details. output from runs is uploaded to
      # free google cloud storage and accessible via the github action run
      - name: audit site using lighthouse ci
        uses: treosh/lighthouse-ci-action@v10
        with:
          configPath: './lighthouserc.js'
          uploadArtifacts: true
          temporaryPublicStorage: true