ccs/.github/workflows/ci.yml

name: CI

on:
  pull_request:
    branches: [main, dev]

# Design notes:
# - Matrix parallelism cuts wall time from ~3-4min to ~60-90s (cache warm).
# - Concurrency group cancels superseded runs on the same ref (saves runner time on rapid pushes).
# - Build leg produces dist/ artifact; test leg downloads it instead of rebuilding (DRY).
# - fail-fast: false so every failure is visible in one run (no re-pushing to see the next failure).

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

jobs:
  validate:
    runs-on: ubuntu-latest
    env:
      # Keep Bun cache isolated per job workspace so parallel CI runs
      # do not race on shared cache paths and corrupt restore/install state.
      BUN_INSTALL_CACHE_DIR: ${{ github.workspace }}/.bun/install/cache
    strategy:
      fail-fast: false
      matrix:
        check:
          - { name: typecheck, cmd: 'bun run typecheck' }
          - { name: lint, cmd: 'bun run lint' }
          - { name: format, cmd: 'bun run format:check' }
    name: ${{ matrix.check.name }}

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

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: '1.3.9'

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Restore bun package cache
        uses: actions/cache@v4
        with:
          path: |
            ${{ env.BUN_INSTALL_CACHE_DIR }}
          key: ${{ runner.os }}-bun-cache-v2-${{ hashFiles('bun.lock', 'ui/bun.lock') }}

      - name: Ensure dependencies
        run: bash scripts/ensure-deps.sh

      - name: Run ${{ matrix.check.name }}
        run: ${{ matrix.check.cmd }}

  build:
    runs-on: ubuntu-latest
    name: build
    env:
      BUN_INSTALL_CACHE_DIR: ${{ github.workspace }}/.bun/install/cache
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: '1.3.9'

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Restore bun package cache
        uses: actions/cache@v4
        with:
          path: |
            ${{ env.BUN_INSTALL_CACHE_DIR }}
          key: ${{ runner.os }}-bun-cache-v2-${{ hashFiles('bun.lock', 'ui/bun.lock') }}

      - name: Ensure dependencies
        run: bash scripts/ensure-deps.sh

      - name: Build
        run: bun run build:all

      - name: Upload dist artifact
        uses: actions/upload-artifact@v4
        with:
          name: dist
          path: dist/
          retention-days: 1
          if-no-files-found: error

  test:
    runs-on: ubuntu-latest
    name: test
    needs: [build]
    env:
      BUN_INSTALL_CACHE_DIR: ${{ github.workspace }}/.bun/install/cache
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: '1.3.9'

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Restore bun package cache
        uses: actions/cache@v4
        with:
          path: |
            ${{ env.BUN_INSTALL_CACHE_DIR }}
          key: ${{ runner.os }}-bun-cache-v2-${{ hashFiles('bun.lock', 'ui/bun.lock') }}

      - name: Ensure dependencies
        run: bash scripts/ensure-deps.sh

      - name: Download dist artifact
        uses: actions/download-artifact@v4
        with:
          name: dist
          path: dist/

      - name: Test
        run: bun run test:all

      - name: Test CLI e2e
        env:
          CCS_E2E_SKIP_BUILD: '1'
        run: bun run test:e2e