CircleCI Rails

config.yml

version: 2.0
jobs:
  build:
    working_directory: ~/prism

    docker:
      - image: ruby:2.2.4-alpine
      - image: percona:5.6.35
        environment:
          - MYSQL_ROOT_PASSWORD=
          - MYSQL_ALLOW_EMPTY_PASSWORD=yes

      environment:
        - RAILS_ENV=test
        - DATABASE_HOST=localhost
        - DATABASE_HOST=3306

    steps:
      - checkout

      # Restore bundle cache
      - restore_cache:
          name: Restore bundle cache
          keys:
            - rails-demo-bundle-{{ checksum "Gemfile.lock" }} # Try cache for these specific gems
            - rails-demo-bundle- # Fallback to most recent bundle cache

      - run: bundle install --path vendor/bundle

      # Store bundle cache
      - save_cache:
          name: Saving bundle cache
          key: rails-demo-bundle-{{ checksum "Gemfile.lock" }}
          paths:
            - vendor/bundle

      - run:
          name: Waiting for percona to start
          command: dockerize -wait tcp://localhost:3306 -timeout 1m

      - run:
          name: Loading database schema
          command: bundle exec rake db:create db:schema:load --trace

      # Run rspec in parallel
      - type: shell
        command: |
          bundle exec rspec --profile 10 \
                            --format progress \
                            $(circleci tests glob "spec/**/*_spec.rb" | circleci tests split --split-by=timings)