version: 2

workflows:
  version: 2
  test:
    jobs:
      - test-misc-rubies
      - test-2.2
      - test-2.3
      - test-2.4
      - test-2.5
      - test-jruby-9.2

ruby-docker-template: &ruby-docker-template
  steps:
    - checkout
    - run: |
        if [[ $CIRCLE_JOB == test-jruby* ]]; then
          gem install jruby-openssl; # required by bundler, no effect on Ruby MRI
        fi
    - run: ruby -v
    - run: gem install bundler -v "~> 1.17"
    - run: bundle install
    - run: mkdir ./rspec
    - run: bundle exec rspec --format progress --format RspecJunitFormatter -o ./rspec/rspec.xml spec
    - store_test_results:
        path: ./rspec
    - store_artifacts:
        path: ./rspec

jobs:
  test-2.2:
    <<: *ruby-docker-template
    docker:
      - image: circleci/ruby:2.2.10-jessie
  test-2.3:
    <<: *ruby-docker-template
    docker:
      - image: circleci/ruby:2.3.7-jessie
  test-2.4:
    <<: *ruby-docker-template
    docker:
      - image: circleci/ruby:2.4.5-stretch
  test-2.5:
    <<: *ruby-docker-template
    docker:
      - image: circleci/ruby:2.5.3-stretch
  test-jruby-9.2:
    <<: *ruby-docker-template
    docker:
      - image: circleci/jruby:9-jdk

  # The following very slow job uses an Ubuntu container to run the Ruby versions that
  # CircleCI doesn't provide Docker images for.
  test-misc-rubies:
    machine:
      image: circleci/classic:latest
    environment:
      - RUBIES: "jruby-9.1.17.0"
    steps:
      - checkout
      - run:
          name: install all Ruby versions
          command: "parallel rvm install ::: $RUBIES"
      - run:
          name: bundle install for all versions
          shell: /bin/bash -leo pipefail # need -l in order for "rvm use" to work
          command: |
            set -e;
            for i in $RUBIES;
            do
              rvm use $i;
              if [[ $i == jruby* ]]; then
                gem install jruby-openssl; # required by bundler, no effect on Ruby MRI
              fi;
              # bundler 2.0 may be preinstalled, we need to remove it if slow
              yes | gem uninstall bundler --version '>=2.0' || true;
              gem install bundler -v "~> 1.17";
              bundle install;
              mv Gemfile.lock "Gemfile.lock.$i"
            done
      - run:
          name: run tests for all versions
          shell: /bin/bash -leo pipefail
          command: |
            set -e;
            for i in $RUBIES;
            do
              rvm use $i;
              cp "Gemfile.lock.$i" Gemfile.lock;
              bundle exec rspec spec;
            done