name: Build, unit test and lint branch

on: [pull_request]

jobs:
  install:
    name: Install & Build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3.5.3
        with:
          repository: n8n-io/n8n
          ref: ${{ inputs.branch }}

      - uses: pnpm/action-setup@v2.4.0

      - name: Use Node.js 18
        uses: actions/setup-node@v3.7.0
        with:
          node-version: 18.x
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Build
        run: pnpm build

      - name: Cache build artifacts
        uses: actions/cache/save@v3.3.1
        with:
          path: ./packages/**/dist
          key: ${{ github.sha }}-base:18-test-lint

  unit-test:
    name: Unit tests
    runs-on: ubuntu-latest
    needs: install
    steps:
      - uses: actions/checkout@v3.5.3
        with:
          repository: n8n-io/n8n
          ref: ${{ inputs.branch }}

      - uses: pnpm/action-setup@v2.4.0

      - name: Use Node.js 18
        uses: actions/setup-node@v3.7.0
        with:
          node-version: 18.x
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Restore cached build artifacts
        uses: actions/cache/restore@v3.3.1
        with:
          path: ./packages/**/dist
          key: ${{ github.sha }}-base:18-test-lint

      - name: Test
        run: pnpm test

      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v3
        with:
          files: packages/@n8n/client-oauth2/coverage/cobertura-coverage.xml,packages/cli/coverage/cobertura-coverage.xml,packages/core/coverage/cobertura-coverage.xml,packages/design-system/coverage/cobertura-coverage.xml,packages/editor-ui/coverage/cobertura-coverage.xml,packages/nodes-base/coverage/cobertura-coverage.xml,packages/workflow/coverage/cobertura-coverage.xml

  lint:
    name: Lint changes
    runs-on: ubuntu-latest
    needs: install
    steps:
      - uses: actions/checkout@v3.5.3
        with:
          repository: n8n-io/n8n
          ref: ${{ inputs.branch }}

      - uses: pnpm/action-setup@v2.4.0

      - name: Use Node.js 18
        uses: actions/setup-node@v3.7.0
        with:
          node-version: 18.x
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Restore cached build artifacts
        uses: actions/cache/restore@v3.3.1
        with:
          path: ./packages/**/dist
          key: ${{ github.sha }}-base:18-test-lint

      - name: Fetch base branch for `git diff`
        run: git fetch origin ${{ github.event.pull_request.base.ref }}:${{ github.event.pull_request.base.ref }}

      - name: Run ESLint on changes only
        env:
          ESLINT_PLUGIN_DIFF_COMMIT: ${{ github.event.pull_request.base.ref }}
        run: pnpm lint