version: 2

jobs:
  build:
    working_directory: /home/circleci/app
    docker:
      - image: circleci/ruby:2.7.2-node
    environment:
      RACK_ENV: test
      RAILS_ENV: test
      COVERAGE: true
      # CC_TEST_REPORTER_ID: YOUR_REPO_CC_TEST_REPORTER_ID # ENV var set in CircleCI user interface
    steps:
      - checkout
      # libpq-dev: required for compiling the `pg` gem
      # nodejs: required for asset compilation (see https://github.com/rails/execjs)
      - run:
          name: Install apt dependencies
          command: |
            sudo apt update -q \
            && sudo apt upgrade -q
      - restore_cache:
          key: v3-bundler-{{ checksum "Gemfile.lock" }}-{{ arch }}
      - run: gem install bundler
      - run: bundle config build.nokogiri --use-system-libraries
      - run: bundle install --without staging:production --path=vendor/bundle --jobs=4 --retry=3
      - save_cache:
          key: v3-bundler-{{ checksum "Gemfile.lock" }}-{{ arch }}
          paths:
            - vendor/bundle
      - run:
          name: Collect and filter specs
          command: |
            mkdir -p tmp/circleci
            circleci tests glob "spec/**/*_spec.rb" > tmp/circleci/all_tests.txt
            circleci tests split --split-by=timings < tmp/circleci/all_tests.txt > tmp/circleci/tests_to_run.txt
            echo "These specs will be run:"
            cat tmp/circleci/tests_to_run.txt
      - run:
          name: Parallel RSpec
          command: |
            bundle exec rspec \
              --color \
              --format progress \
              --require spec_helper \
              --format RspecJunitFormatter --out /tmp/rspec/junit.xml \
              $(cat tmp/circleci/tests_to_run.txt)
      # actually not necessary for test results to be collected, but these files
      # won't show up in the web UI otherwise
      - store_artifacts:
          path: /tmp/rspec/
          destination: rspec

      - store_test_results:
          path: /tmp/rspec/