branch/.github/workflows/frontend-ci.yml at main · Code-4-Community/branch · GitHub

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name: Frontend CI

on:
  pull_request:
    branches: [main, develop]
  merge_group:
    branches: [main]

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  # frontend-ci is a required check: workflow-level `paths:` leaves it pending forever, a skipped job passes.
  changes:
    name: changes
    runs-on: ubuntu-latest
    outputs:
      frontend: ${{ steps.filter.outputs.frontend }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect frontend changes
        id: filter
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.merge_group.base_sha }}
        run: |
          if [ -z "$BASE_SHA" ] || ! git cat-file -e "$BASE_SHA^{commit}" 2>/dev/null; then
            echo "frontend=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          changed=$(git diff --name-only "$BASE_SHA" HEAD | grep -E \
            '^(apps/frontend/|shared/|\.github/actions/build-shared-packages/|\.github/workflows/frontend-ci\.yml$)' || true)

          if [ -n "$changed" ]; then
            echo "frontend=true" >> "$GITHUB_OUTPUT"
            echo "$changed" | sed 's/^/changed: /'
          else
            echo "frontend=false" >> "$GITHUB_OUTPUT"
            echo "No frontend-relevant changes."
          fi

  frontend-ci:
    name: frontend-ci
    needs: changes
    if: needs.changes.outputs.frontend == 'true'
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: apps/frontend
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      # apps/frontend consumes @branch/rbac as a file: dependency and its dist
      # is gitignored, so it has to be built before npm ci resolves it. The
      # job's defaults.run working-directory does not reach a composite
      # action's steps, so this still runs from the repo root as it needs to.
      - name: Build shared packages
        uses: ./.github/actions/build-shared-packages

      - name: Install dependencies
        run: npm ci

      - name: TypeScript check
        run: npm run typecheck

      - name: Lint
        run: npm run lint

      - name: Build
        run: npm run build

      - name: Run tests
        run: npm run test