image: ruby:2.6

variables:
    JEKYLL_ENV: production
  
stages:
    - setup
    - test
    - pages
    - review
    - deploy
    - clean
    - linkchecker

before_script:
    # https://docs.gitlab.com/ee/ci/ssh_keys/README.html
    - mkdir -p ~/.ssh
    - chmod 700 ~/.ssh
    
    - export LC_ALL="C.UTF-8"; export LANG="en_US.UTF-8"; export LANGUAGE="en_US.UTF-8"
    - export BUNDLE_PATH="vendor/bundle"

prepare:
    stage: setup
    cache:
        key: "$CI_COMMIT_REF_SLUG"
        paths:
            - vendor/bundle
    script:
        - bundle install

test:
    stage: test
    script:
        - 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "$ENV{''REVIEW_BASE_DIR''}/~$ENV{''CI_COMMIT_REF_NAME''}/"\n!g'' _config.yml'
        - cat _config.yml
        - bundle install
        - bundle exec jekyll build -d test
    cache:
        key: "$CI_COMMIT_REF_SLUG"
        paths:
            - vendor/bundle
        policy: pull
    except:
        - master
        
review:pages:
    stage: pages
    script:
        - bundle install
        - 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "$ENV{''REVIEW_BASE_DIR''}/~$ENV{''CI_COMMIT_REF_NAME''}/"\n!g'' _config.yml'
        - cat _config.yml
        - bundle exec jekyll build -d public
    except:
        - master
    artifacts:
        paths:
            - public
    cache:
        key: "$CI_COMMIT_REF_SLUG"
        paths:
            - vendor/bundle
        policy: pull
        
review:start:
    stage: review
    script:
        - echo "$REVIEW_SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        - eval $(ssh-agent -s)
        - echo "$REVIEW_SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
        - ssh -p "${REVIEW_SSH_PORT}" "${REVIEW_SSH_USER}"@"${REVIEW_HOST_NAME}" "mkdir -p /usr/share/nginx/html/~${CI_COMMIT_REF_NAME}"
        - scp -P "${REVIEW_SSH_PORT}" -r public/* "${REVIEW_SSH_USER}"@"${REVIEW_HOST_NAME}":"/usr/share/nginx/html/~${CI_COMMIT_REF_NAME}"
    except:
        - master
    environment:
        name: $CI_COMMIT_REF_NAME
        url: https://${REVIEW_PROXY_HOST_NAME}${REVIEW_BASE_DIR}~${CI_COMMIT_REF_NAME}/
        on_stop: review:stop

  
review:stop:
    stage: review
    script:
        - echo "$REVIEW_SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        - eval $(ssh-agent -s)
        - echo "$REVIEW_SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
        - ssh -p "${REVIEW_SSH_PORT}" "${REVIEW_SSH_USER}"@"${REVIEW_HOST_NAME}" "rm -rf /usr/share/nginx/html/~${CI_COMMIT_REF_NAME}"
    when: manual
    except:
        - master
    environment:
        name: $CI_COMMIT_REF_NAME
        action: stop
        
pages:
    stage: pages
    only:
        - master
    script:
        - bundle install
        # Wenn `url: https://$PROXY_HOST_NAME/` verwendet wird,
        # dann wird `$ENV{''BASE_DIR''}/~$ENV{''CI_COMMIT_REF_NAME''}` NICHT
        # benötigt
        - 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "$ENV{''BASE_DIR''}"\n!g'' _config.yml'
        #- 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "/"\n!g'' _config.yml'
        - cat _config.yml
        - bundle exec jekyll build -d public
    artifacts:
        paths:
            - public
    cache:
        key: "$CI_COMMIT_REF_SLUG"
        paths:
            - vendor/bundle
        policy: pull

deploy:
    stage: deploy
    only:
        - master
    except:
        - schedules
    script:
        - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        - eval $(ssh-agent -s)
        - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
        - ssh -p "${SSH_PORT}" "${SSH_USER}"@"${HOST_NAME}" "mkdir -p /usr/share/nginx/html"
        - scp -P "${SSH_PORT}" -r public/* "${SSH_USER}"@"${HOST_NAME}":"/usr/share/nginx/html"
    environment:
        name: $CI_COMMIT_REF_NAME
        url: https://$PROXY_HOST_NAME$BASE_DIR
        #url: https://$PROXY_HOST_NAME/
        
clean:
    stage: clean
    script:
        - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        - eval $(ssh-agent -s)
        - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
        - ssh -p "${SSH_PORT}" "${SSH_USER}"@"${HOST_NAME}" "rm -rf /usr/share/nginx/html/*"
    when: manual
    only:
        - master
    environment:
        name: $CI_COMMIT_REF_NAME
        action: stop
        
linkchecker:intern:
  stage: linkchecker
  except:
    - master
  image:
    name: linkchecker/linkchecker
    entrypoint: [""]
  script:
    - linkchecker --recursion-level 10 --threads 10 --no-status --no-robots --no-warnings --ignore-url 'https://fonts.gstatic.com/{0,1}$' https://${REVIEW_PROXY_HOST_NAME}/${REVIEW_BASE_DIR}/~${CI_COMMIT_REF_NAME}/
  when: manual
    
linkchecker:all:
  stage: linkchecker
  except:
    - master
  image:
    name: linkchecker/linkchecker
    entrypoint: [""]
  script:
    - linkchecker --recursion-level 10 --threads 10 --no-status --no-robots --no-warnings --check-extern --ignore-url 'https://fonts.gstatic.com/{0,1}$' https://${REVIEW_PROXY_HOST_NAME}/${REVIEW_BASE_DIR}/~${CI_COMMIT_REF_NAME}/
  when: manual