name: ci

on:
  push:
    branches: [main]
  pull_request:

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

jobs:
  check:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        # The tools shell out to rg, git, and a platform shell, so the suite has to
        # run on all three; a Windows-only path break is otherwise invisible.
        os: [ubuntu-latest, macos-latest, windows-latest]
    steps:
      - uses: actions/checkout@v4

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: 1.3.14

      # bun install --frozen-lockfile re-resolves nothing but still pays the network
      # cost of a cold store; cache the store so a no-change run skips it. Key is per
      # OS and lockfile, so a dependency bump or a new OS each gets a fresh cache.
      - name: Cache the bun install store
        uses: actions/cache@v4
        with:
          path: ~/.bun/install/cache
          key: bun-${{ runner.os }}-${{ hashFiles('bun.lock') }}
          restore-keys: |
            bun-${{ runner.os }}-

      - run: bun install --frozen-lockfile
      - run: bun run typecheck
      - run: bun test
      - run: bun run build