image: ruby:2.5

stages:
  - images
  - build
  - test
  - deploy
  - docker-stable

#
# Pick the remote branch, by default master (see the Rakefile for more info)
#
variables:
  BRANCH_CE: 'master'
  BRANCH_EE: 'master'
  BRANCH_OMNIBUS: 'master'
  BRANCH_RUNNER: 'master'

before_script:
  - ruby -v
  - bundle install --jobs 4 --path vendor

###############################################
#             Build the website               #
###############################################

.build_base: &build_base
  stage: build
  script:
    - rake setup_git default
    - nanoc compile -VV
  artifacts:
    paths:
      - public
    expire_in: 1w
  cache:
    key: "$CI_JOB_NAME-$CI_COMMIT_REF_NAME"
    paths:
      - tmp/
      - vendor/ruby
  tags:
    - docker

#
# Compile only on master and stable branches
#
compile_prod:
  <<: *build_base
  variables:
    NANOC_ENV: 'production'
  only:
    - master
    - /^\d{1,2}\.\d{1,2}$/

#
# Compile on all branches except master
#
compile_dev:
  <<: *build_base
  only:
    - branches
  except:
    - master
    - /^\d{1,2}\.\d{1,2}$/

###############################################
#              Test the website               #
###############################################

#
# Check for 404s in internal links
#
internal_links:
  stage: test
  script:
    - nanoc check internal_links
  allow_failure: true
  cache:
    key: "test-$CI_COMMIT_REF_NAME"
    paths:
      - vendor/ruby
  tags:
    - docker
  # Skip this job when it's invoked by a cross project pipeline. That will speed
  # up the pipeline when a docs preview is triggered. We already check for
  # internal links in every MR anyway. For more info:
  # https://docs.gitlab.com/ee/development/writing_documentation.html#previewing-the-changes-live
  except:
    - pipelines

#
# SCSS linting
#
scss_lint:
  stage: test
  script:
    - bundle exec scss-lint
  cache:
    key: "test-$CI_COMMIT_REF_NAME"
    paths:
      - vendor/ruby
  tags:
    - docker
  # Skip this job when it's invoked by a cross project pipeline. That will speed
  # up the pipeline when a docs preview is triggered. The triggered pipeline is
  # always a branch off master which should be green anyway. For more info:
  # https://docs.gitlab.com/ee/development/writing_documentation.html#previewing-the-changes-live
  except:
    - pipelines

###############################################
#               Review Apps                   #
###############################################

#
# Deploy the Review App on a dev server
#
review:
  stage: deploy
  variables:
    GIT_STRATEGY: none
  dependencies:
    - compile_dev
  before_script: []
  cache: {}
  script:
    - rsync -av --delete public /srv/nginx/pages/$CI_COMMIT_REF_SLUG
  environment:
    name: review/$CI_COMMIT_REF_SLUG
    url: http://$CI_COMMIT_REF_SLUG.$APPS_DOMAIN
    on_stop: review_stop
  only:
    - branches@gitlab-com/gitlab-docs
  # Except master and stable branches
  except:
    - master
    - /^\d{1,2}\.\d{1,2}$/
  tags:
    - nginx
    - review-apps

#
# Stop the Review App
#
review_stop:
  stage: deploy
  variables:
    GIT_STRATEGY: none
  dependencies: []
  artifacts: {}
  before_script: []
  cache: {}
  script:
    - rm -rf public /srv/nginx/pages/$CI_COMMIT_REF_SLUG
  when: manual
  environment:
    name: review/$CI_COMMIT_REF_SLUG
    action: stop
  only:
    - branches@gitlab-com/gitlab-docs
  # Except master and stable branches
  except:
    - master
    - /^\d{1,2}\.\d{1,2}$/
  tags:
    - nginx
    - review-apps

###############################################
#          GitLab Pages (production)          #
###############################################

#
# Deploy to production with GitLab Pages
#
pages:
  stage: deploy
  variables:
    GIT_STRATEGY: none
  before_script: []
  cache: {}
  environment:
    name: production
    url: https://docs.gitlab.com
  script:
    # Symlink all README.html to index.html
    - for i in `find public -name README.html`; do ln -sf README.html $(dirname $i)/index.html; done
  artifacts:
    paths:
    - public
    expire_in: 1h
  only:
    - master@gitlab-com/gitlab-docs
  tags:
    - docker
  dependencies:
    - compile_prod

###############################################
#           Docker images builds              #
###############################################

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

#
# Except stable branches with versions like 10.4
#
.except_stable: &except_stable
  except:
    - /^\d{1,2}\.\d{1,2}$/

#
# Build the image containing all build dependencies
#
image:bootstrap:
  stage: images
  <<: *docker_build
  variables:
    IMAGE_NAME: $CI_REGISTRY_IMAGE:bootstrap
  script:
    - docker build -t $IMAGE_NAME -f dockerfiles/Dockerfile.bootstrap .
    - docker push $IMAGE_NAME
  when: manual
  <<: *except_stable

#
# Build the image that takes the website and builds it
#
image:builder-onbuild:
  stage: images
  <<: *docker_build
  variables:
    IMAGE_NAME: $CI_REGISTRY_IMAGE:builder-onbuild
  script:
    - docker build -t $IMAGE_NAME -f dockerfiles/Dockerfile.builder.onbuild .
    - docker push $IMAGE_NAME
  when: manual
  <<: *except_stable

#
# Build the image that copies the final HTML files in a smaller image
#
image:nginx-onbuild:
  stage: images
  <<: *docker_build
  variables:
    IMAGE_NAME: $CI_REGISTRY_IMAGE:nginx-onbuild
  script:
    - docker build -t $IMAGE_NAME -f dockerfiles/Dockerfile.nginx.onbuild .
    - docker push $IMAGE_NAME
  when: manual
  only:
    - web

#
# Build the single archive image for stable versions
#
image:docs-stable:
  stage: docker-stable
  <<: *docker_build
  variables:
    NANOC_ENV: 'production'
    IMAGE_NAME: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
  script:
    - docker build --build-arg NANOC_ENV=${NANOC_ENV} --build-arg CI_COMMIT_REF_NAME=${CI_COMMIT_REF_NAME} -t $IMAGE_NAME .
    - docker push $IMAGE_NAME
  # Only branches with versions like 10.4
  only:
    - /^\d{1,2}\.\d{1,2}$/
  except:
    - tags

#
# Build the multiple archives image
#
image:docs-archives:
  stage: images
  <<: *docker_build
  variables:
    IMAGE_NAME: $CI_REGISTRY_IMAGE:archives
  script:
    - docker build -t $IMAGE_NAME -f dockerfiles/Dockerfile.archives .
    - docker push $IMAGE_NAME
  when: manual
  <<: *except_stable

#
# Build master containing all archives and latest docs
#
image:docs-latest:
  stage: docker-stable
  <<: *docker_build
  variables:
    NANOC_ENV: 'production'
    IMAGE_NAME: $CI_REGISTRY_IMAGE:latest
  script:
    - docker build --build-arg NANOC_ENV=${NANOC_ENV} --build-arg CI_COMMIT_REF_NAME=${CI_COMMIT_REF_NAME} -t $IMAGE_NAME .
    - docker push $IMAGE_NAME
  only:
    - master
  allow_failure: true