lighthouse-ci.yml

name: Lighthouse CI

on:
  pull_request:
  push:
    branches: ["main"]
  workflow_dispatch:

permissions:
  contents: read

jobs:
  lighthouse:
    runs-on: ubuntu-latest

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

      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: "3.4"

      - name: Install dependencies
        working-directory: my-site
        run: bundle install --jobs 4 --retry 3

      - name: Build Jekyll (Lighthouse target)
        working-directory: my-site
        run: bundle exec jekyll build --baseurl ""

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: "20"

      - name: Run Lighthouse CI
        run: npx @lhci/cli@0.13.x autorun --config=.lighthouserc.json

      - name: Add Lighthouse report links to summary
        if: always()
        run: |
          node <<'NODE'
          const fs = require('fs');
          const path = '.lighthouseci/links.json';
          if (!fs.existsSync(path)) process.exit(0);

          const links = JSON.parse(fs.readFileSync(path, 'utf8'));
          let out = '## Lighthouse 臨時報告連結\n\n';
          for (const [url, report] of Object.entries(links)) {
            out += `- [${url}](${report})\n`;
          }
          fs.appendFileSync(process.env.GITHUB_STEP_SUMMARY, out);
          NODE

      - name: Upload Lighthouse artifacts
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: lighthouseci-reports
          path: .lighthouseci