ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        ruby: ["3.1", "3.2", "3.3", "3.4"]
    steps:
      - uses: actions/checkout@v4
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby }}
          bundler-cache: true
      - run: bundle exec rake test

  # Runs the suite through the same flake.nix shell used for local development,
  # so a broken dev environment fails CI instead of surfacing only when someone
  # next runs `nix develop`. No Nix cache action is wired up here: this flake
  # doesn't build anything from source, so every package is already served by
  # the public cache.nixos.org substituter and there's nothing to gain from one.
  nix:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: DeterminateSystems/determinate-nix-action@v3
      - run: nix develop --command bundle install
      - run: nix develop --command bundle exec rake test
      - run: nix develop --command bundle exec rubocop