chore: implement gh action workflow

.github/workflows/e2e-tests.yml

@@ -0,0 +1,82 @@
+name: E2E Tests
+
+on:
+  push:
+  schedule:
+    - cron: "0 7 * * 1-5" # Weekdays at 7am UTC / 2am EST / 11pm PST
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install Playwright Chromium
+        run: npx playwright install chromium --with-deps
+
+      - name: Create .env file from secrets
+        run: |
+          echo "BASE_URL=${{ secrets.BASE_URL }}" >> .env
+          echo "WP_USERNAME=${{ secrets.WP_USERNAME }}" >> .env
+          echo "WP_PASSWORD=${{ secrets.WP_PASSWORD }}" >> .env
+
+      - name: Install sshpass
+        run: sudo apt-get update && sudo apt-get install -y sshpass
+
+      - name: Update e2e-plugin.php on the site
+        run: |
+          echo "Resetting the test site"
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_KNOWN_HOST }}" > ~/.ssh/known_hosts
+          sshpass -p "${{ secrets.SSH_USER_PASS }}" scp ./e2e-plugin.php ${{ secrets.SSH_USER }}@${{ secrets.SSH_HOST }}:/htdocs/wp-content/plugins/
+
+      - name: Run tests
+        run: npm run test:snapshots
+
+      - name: Upload Playwright Report
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 30
+
+      - name: Upload Test Results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: test-results
+          path: test-results/
+          retention-days: 30
+
+      - name: Deploy to GitHub Pages
+        if: always()
+        run: |
+          git config user.name "${{ secrets.GIT_COMMITTER_NAME }}"
+          git config user.email "${{ secrets.GITHUB_COMMITTER_EMAIL }}"
+          git checkout -b gh-pages
+          mv playwright-report docs
+          cd docs
+          sed -i "s|<title>.*</title>|<title>Newspack E2E Test Report</title>|" index.html
+          git add --all
+          git commit -m "Deploy Playwright Report [skip ci]"
+          git push "https://${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git" gh-pages --force
+
+      - name: Notify about failure
+        if: failure() && github.ref == 'refs/heads/trunk'
+        run: |
+          curl \
+            --data '{"channel":"${{ secrets.SLACK_CHANNEL_ID }}","blocks":[{"type":"section","text":{"type":"mrkdwn","text":"⚠️ E2E tests have failed. Check <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|the artifacts> to verify."}}]}' \
+            -H "Content-type: application/json" \
+            -H "Authorization: Bearer ${{ secrets.SLACK_AUTH_TOKEN }}" \
+            -X POST https://slack.com/api/chat.postMessage