version: 2
references:
  repo_restore_cache: &repo_restore_cache
    restore_cache:
      keys:
        - repo-{{ .Environment.CIRCLE_SHA1 }}

  repo_save_cache: &repo_save_cache
    save_cache:
      key: repo-{{ .Environment.CIRCLE_SHA1 }}-{{ epoch }}
      paths:
        - ~/method_source

  bundle_install: &bundle_install
    run:
      name: Install Bundler dependencies
      command: bundle install --path ~/method_source/vendor/bundle --jobs 15

  unit: &unit
    run:
      name: Run unit tests
      command: bundle exec rake

jobs:
  "ruby-1.9":
    docker:
      - image: kyrylo/ruby-1.9.3p551
    working_directory: /home/circleci/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.0":
    docker:
      - image: kyrylo/ruby-2.0.0p648
    working_directory: /home/circleci/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.1":
    docker:
      - image: circleci/ruby:2.1
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.2":
    docker:
      - image: circleci/ruby:2.2
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.3":
    docker:
      - image: circleci/ruby:2.3
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.4":
    docker:
      - image: circleci/ruby:2.4
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.5":
    docker:
      - image: circleci/ruby:2.5
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.6":
    docker:
      - image: circleci/ruby:2.6
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "ruby-2.7":
    docker:
      - image: circleci/ruby:2.7.0
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "jruby-9.1-jdk":
    docker:
      - image: circleci/jruby:9.1-jdk
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit
  "jruby-9.2-jdk":
    docker:
      - image: circleci/jruby:9.2-jdk
    working_directory: ~/method_source
    steps:
      - checkout
      - <<: *repo_restore_cache
      - <<: *bundle_install
      - <<: *unit

workflows:
  version: 2
  build:
    jobs:
      - "ruby-1.9"
      - "ruby-2.0"
      - "ruby-2.1"
      - "ruby-2.2"
      - "ruby-2.3"
      - "ruby-2.4"
      - "ruby-2.5"
      - "ruby-2.6"
      - "ruby-2.7"
      - "jruby-9.1-jdk"
      - "jruby-9.2-jdk"