# See documentation at https://docs.gitlab.com/ee/ci/yaml/README.html
variables:
  CI_REGISTRY_IMAGE_LATEST: $CI_REGISTRY_IMAGE:latest
  CI_REGISTRY_IMAGE_STABLE: $CI_REGISTRY_IMAGE:stable

stages:
- test
- deploy

.docker_build: &docker
  image: docker:latest
  services:
  - docker:dind
  before_script:
  - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY

.ruby_build: &ruby
  image: $CI_REGISTRY_IMAGE_LATEST
  # Cache gems in between builds
  cache:
    paths:
    - /cache
  # This is a basic example for a gem or script which doesn't use
  # services such as redis or postgres
  before_script:
  - ruby -v                                     # Print out ruby version for debugging
  - gem install bundler --no-ri --no-rdoc       # Bundler is not installed with the image
  - bundle install -j $(nproc) --path=".bundle" # Install dependencies into ./.bundle

.release_docker_image: &release_docker_image
  <<: *docker
  stage: deploy
  script:
  - echo "Releasing ${$TARGET_IMAGE} from $CI_REGISTRY_IMAGE_LATEST"
  - docker pull $CI_REGISTRY_IMAGE_LATEST
  - docker tag $CI_REGISTRY_IMAGE_LATEST ${$TARGET_IMAGE}
  - docker push ${$TARGET_IMAGE}

test:
  <<: *ruby
  script: bin/rake test
  stage: test
  artifacts:
    paths:
    - Gemfile.lock
    - spec/reports
    - coverage

doc:
  <<: *ruby
  script: bin/rake doc
  stage: test
  artifacts:
    paths:
    - doc

build latest docker:
  <<: *docker
  stage: deploy
  only:
  - develop
  dependencies:
  - test
  script:
  - echo "Building $CI_REGISTRY_IMAGE_LATEST"
  - docker build --pull -t $CI_REGISTRY_IMAGE_LATEST .
  - docker push $CI_REGISTRY_IMAGE_LATEST

build stable docker:
  <<: *docker
  stage: deploy
  only:
  - master
  dependencies:
  - test
  script:
  - echo "Building $CI_REGISTRY_IMAGE_STABLE"
  - docker build --pull -t $CI_REGISTRY_IMAGE_STABLE .
  - docker push $CI_REGISTRY_IMAGE_STABLE

build_gem:
  <<: *ruby
  script: bin/rake build
  only:
  - develop
  stage: deploy
  artifacts:
    paths:
    - doc
    - pkg