Checkmate-Escrow/.github/workflows/frontend-accessibility.yml at main · devoclan/Checkmate-Escrow · GitHub

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name: Frontend Accessibility (Lighthouse CI)

# Run on every push and pull request that touches the frontend or this workflow.
on:
  push:
    branches: [main, master]
    paths:
      - 'frontend/**'
      - '.github/workflows/frontend-accessibility.yml'
  pull_request:
    branches: [main, master]
    paths:
      - 'frontend/**'
      - '.github/workflows/frontend-accessibility.yml'

jobs:
  lighthouse-accessibility:
    name: Lighthouse Accessibility Audit
    runs-on: ubuntu-latest

    defaults:
      run:
        working-directory: frontend

    steps:
      # ── 1. Checkout ──────────────────────────────────────────────────────
      - name: Checkout repository
        uses: actions/checkout@v4

      # ── 2. Node.js setup ─────────────────────────────────────────────────
      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

      # ── 3. Install dependencies ───────────────────────────────────────────
      - name: Install dependencies
        run: npm ci

      # ── 4. Build the frontend ─────────────────────────────────────────────
      # Lighthouse CI needs a static build to audit; `npm run build` produces
      # the ./dist directory referenced in lighthouserc.cjs.
      - name: Build frontend
        run: npm run build

      # ── 5. Install Lighthouse CI ──────────────────────────────────────────
      - name: Install @lhci/cli
        run: npm install -g @lhci/cli@0.14.x

      # ── 6. Run Lighthouse CI ──────────────────────────────────────────────
      # Uses frontend/lighthouserc.cjs which asserts categories:accessibility >= 0.90.
      # The step fails (exit code 1) if the score drops below the threshold,
      # blocking the PR from merging.
      - name: Run Lighthouse CI
        run: lhci autorun --config=./lighthouserc.cjs
        env:
          LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}

      # ── 7. Upload Lighthouse report as artifact ───────────────────────────
      - name: Upload Lighthouse results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: lighthouse-accessibility-report
          path: frontend/.lighthouseci/
          retention-days: 30