version: 2.1

orbs:
  gem: doximity/gem-publisher@0

executors:

  # used for building the gem
  ruby-latest:
    resource_class: small
    docker:
      - image: circleci/ruby:latest
        environment:
          BUNDLE_VERSION: "~> 1.17"

  # used for testing the gem:
  ruby_2_5:
    resource_class: small
    docker:
      - image: circleci/ruby:2.5
        environment:
          BUNDLE_VERSION: "~> 1.17"
      - image: elastic/elasticsearch:6.8.2
        environment:
          - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
          - discovery.type=single-node
          - xpack.security.enabled=false
  ruby_2_6:
    resource_class: small
    docker:
      - image: circleci/ruby:2.6
        environment:
          BUNDLE_VERSION: "~> 1.17"
      - image: elastic/elasticsearch:6.8.2
        environment:
          - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
          - discovery.type=single-node
          - xpack.security.enabled=false
  ruby_2_7:
    resource_class: small
    docker:
      - image: circleci/ruby:2.7
        environment:
          BUNDLE_VERSION: "~> 1.17"
      - image: elastic/elasticsearch:6.8.2
        environment:
          - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
          - discovery.type=single-node
          - xpack.security.enabled=false

# yaml anchor filters
master_only: &master_only
  filters:
    branches:
      only: master
    tags:
      ignore: /.*/
pr_only: &pr_only
  filters:
    branches:
      ignore: master
    tags:
      ignore: /.*/
version_tags_only: &version_tags_only
  filters:
    branches:
      ignore: /.*/
    tags:
      only: /^v.*/

jobs:
  build_2_5:
    executor: ruby_2_5
    steps:
      - checkout
      - run:
          name: Install Bundler specific version
          command: |
            gem install bundler --version "${BUNDLE_VERSION}" --force
      - restore_cache:
          keys:
            - v1-bundle-ruby_2_5-{{ checksum "Gemfile.lock" }}
      - run:
          name: Install Ruby Dependencies
          command: bundle check --path=vendor/bundle || bundle install --local --frozen --path=vendor/bundle --jobs=4 --retry=3
      - save_cache:
          key: v1-bundle-ruby_2_5-{{ checksum "Gemfile.lock" }}
          paths:
            - vendor/bundle
      - run:
          name: Wait for ElasticSearch
          command: dockerize -wait http://127.0.0.1:9200 -timeout 1m
      - run:
          name: Run Tests
          command: bundle exec rspec
      - persist_to_workspace:
          root: .
          paths:
            - vendor/bundle
  build_2_6:
    executor: ruby_2_6
    steps:
      - checkout
      - run:
          name: Install Bundler specific version
          command: |
            gem install bundler --version "${BUNDLE_VERSION}" --force
      - restore_cache:
          keys:
            - v1-bundle-ruby_2_6-{{ checksum "Gemfile.lock" }}
      - run:
          name: Install Ruby Dependencies
          command: bundle check --path=vendor/bundle || bundle install --local --frozen --path=vendor/bundle --jobs=4 --retry=3
      - save_cache:
          key: v1-bundle-ruby_2_6-{{ checksum "Gemfile.lock" }}
          paths:
            - vendor/bundle
      - run:
          name: Wait for ElasticSearch
          command: dockerize -wait http://127.0.0.1:9200 -timeout 1m
      - run:
          name: Run Tests
          command: bundle exec rspec
      - persist_to_workspace:
          root: .
          paths:
            - vendor/bundle
  build_2_7:
    executor: ruby_2_7
    steps:
      - checkout
      - run:
          name: Install Bundler specific version
          command: |
            gem install bundler --version "${BUNDLE_VERSION}" --force
      - restore_cache:
          keys:
            - v1-bundle-ruby_2_7-{{ checksum "Gemfile.lock" }}
      - run:
          name: Install Ruby Dependencies
          command: bundle check --path=vendor/bundle || bundle install --local --frozen --path=vendor/bundle --jobs=4 --retry=3
      - save_cache:
          key: v1-bundle-ruby_2_7-{{ checksum "Gemfile.lock" }}
          paths:
            - vendor/bundle
      - run:
          name: Wait for ElasticSearch
          command: dockerize -wait http://127.0.0.1:9200 -timeout 1m
      - run:
          name: Run Tests
          command: bundle exec rspec
      - persist_to_workspace:
          root: .
          paths:
            - vendor/bundle

workflows:
  version: 2
  trunk:
    jobs:
      - build_2_5:
          <<: *master_only
      - build_2_6:
          <<: *master_only
      - build_2_7:
          <<: *master_only
      - gem/build:
          <<: *master_only
          executor: ruby-latest
          name: gem-build
          requires:
            - build_2_5

  pull-requests:
    jobs:
      - build_2_5:
          <<: *pr_only
      - build_2_6:
          <<: *pr_only
      - build_2_7:
          <<: *pr_only
      - gem/build:
          <<: *pr_only
          executor: ruby-latest
          name: gem-build
          requires:
            - build_2_5
      - pre-release-approval:
          <<: *pr_only
          type: approval
          requires:
            - gem-build
      - gem/publish:
          <<: *pr_only
          name: gem-publish
          to_rubygems: true
          pre_release: true
          requires:
            - pre-release-approval
          context: artifact_publishing

  final-release:
    jobs:
      - build_2_5:
          <<: *version_tags_only
      - build_2_6:
          <<: *version_tags_only
      - build_2_7:
          <<: *version_tags_only
      - gem/build:
          <<: *version_tags_only
          executor: ruby-latest
          name: gem-build
          requires:
            - build_2_5
      - gem/publish:
          <<: *version_tags_only
          name: gem-publish
          to_rubygems: true
          pre_release: false
          requires:
            - gem-build
          context: artifact_publishing