image: ruby:latest

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

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: gems
        paths:
            - vendor/bundle
    script:
        - bundle install

test:
    stage: test
    script:
        - 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "/$ENV{''CI_PROJECT_PATH''}/~$ENV{''CI_COMMIT_REF_NAME''}/"\n!g'' _config.yml'
        - cat _config.yml
        - bundle exec jekyll build -d test
    cache:
        key: gems
        paths:
            - vendor/bundle
        policy: pull
    except:
        - master

review:start:
    stage: review
    script:
        - echo "$REVIEW_SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        - 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "/$ENV{''CI_PROJECT_PATH''}/~$ENV{''CI_COMMIT_REF_NAME''}/"\n!g'' _config.yml'
        - cat _config.yml
        - bundle install
        - bundle exec jekyll build -d public
        - 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}"
    cache:
        key: gems
        paths:
            - vendor/bundle
        policy: pull
    artifacts:
        paths:
            - public
    except:
        - master
    environment:
        name: $CI_COMMIT_REF_NAME
        url: https://$REVIEW_PROXY_HOST_NAME/${CI_PROJECT_PATH}/~${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

deploy:
    stage: deploy
    only:
        - master
    except:
        - schedules
    script:
        - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        #- 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "/$ENV{''CI_PROJECT_PATH''}"\n!g'' _config.yml'
        #- cat _config.yml
        - find backlog -regextype egrep -regex "backlog/[0-9]{8,8}_.*" | sort | awk -F'/|_' -v date=$(date +%Y%m%d) '{if ($2 <= date) {print("cp backlog/"$2"_home.html _layouts/home.html"); system("cp backlog/"$2"_home.html _layouts/home.html")}}'
        - bundle install
        - bundle exec jekyll build -d public
        - 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"
    cache:
        key: gems
        paths:
            - vendor/bundle
        policy: pull        
    environment:
        name: _$CI_COMMIT_REF_NAME
        #url: http://$HOST_NAME$COLON$HTTP_PORT/
        #url: https://$PROXY_HOST_NAME/$BASE_PATH/
        #url: https://$PROXY_HOST_NAME/$CI_PROJECT_PATH/
        url: https://$PROXY_HOST_NAME/

deploy:on-schedule:
    stage: deploy
    only:
        - schedules
    script:
        - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
        - chmod 644 ~/.ssh/known_hosts
        #- 'perl -i -pe ''s!.*baseurl:\s.*!baseurl: "/$ENV{''CI_PROJECT_PATH''}"\n!g'' _config.yml'
        #- cat _config.yml
        - find backlog -regextype egrep -regex "backlog/[0-9]{8,8}_.*" | sort | awk -F'/|_' -v date=$(date +%Y%m%d) '{if ($2 <= date) {print("cp backlog/"$2"_home.html _layouts/home.html"); system("cp backlog/"$2"_home.html _layouts/home.html")}}'
        - bundle install
        - bundle exec jekyll build -d public
        - 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"
    cache:
        key: gems
        paths:
            - vendor/bundle
        policy: pull        
    environment:
        name: _$CI_COMMIT_REF_NAME
        #url: http://$HOST_NAME$COLON$HTTP_PORT/
        #url: https://$PROXY_HOST_NAME/$BASE_PATH/
        #url: https://$PROXY_HOST_NAME/$CI_PROJECT_PATH/
        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


.deploy:
    stage: deploy
    only:
        - master
    except:
        - schedules
    tags:
        - ssg
    script:
        - pwd
        # `_layouts/home.html` kann datumsabhängig mit einer Datei aus `backlogs` überschrieben werden
        - find backlog -regextype egrep -regex "backlog/[0-9]{8,8}_.*" | sort | awk -F'/|_' -v date=$(date +%Y%m%d) '{if ($2 <= date) {print("cp backlog/"$2"_home.html _layouts/home.html"); system("cp backlog/"$2"_home.html _layouts/home.html")}}'
        - sudo docker run --rm -v $(pwd):/source ${BUILD_IMAGE} install
        - sudo docker run --rm -v $(pwd):/source ${BUILD_IMAGE} build
        # Da `StrictHostKeyChecking no` verwendet wird, ist das Folgende ok :\
        - ssh-keygen -f "$HOME/.ssh/known_hosts" -R [@$HOST_NAME]:$SSH_PORT
        - sshpass -p "$SSH_PASSWD" ssh -p "$SSH_PORT" $SSH_USER@$HOST_NAME "mkdir -p /usr/share/nginx/html/production"
        - sshpass -p "$SSH_PASSWD" scp -P "$SSH_PORT" -r _site/* $SSH_USER@$HOST_NAME:/usr/share/nginx/html/production
    environment:
        name: production
        url: https://$PROXY_HOST_NAME/
        
.deploy:on-schedule:
    stage: deploy
    only:
        - schedules
    tags:
        - ssg
    script:
        - pwd
        # `_layouts/home.html` kann datumsabhängig mit einer Datei aus `backlogs` überschrieben werden
        - find backlog -regextype egrep -regex "backlog/[0-9]{8,8}_.*" | sort | awk -F'/|_' -v date=$(date +%Y%m%d) '{if ($2 <= date) {print("cp backlog/"$2"_home.html _layouts/home.html"); system("cp backlog/"$2"_home.html _layouts/home.html")}}'
        - sudo docker run --rm -v $(pwd):/source ${BUILD_IMAGE} install
        - sudo docker run --rm -v $(pwd):/source ${BUILD_IMAGE} build
        - sshpass -p "$SSH_PASSWD" ssh -p "$SSH_PORT" $SSH_USER@$HOST_NAME "mkdir -p /usr/share/nginx/html/production"
        - sshpass -p "$SSH_PASSWD" scp -P "$SSH_PORT" -r _site/* $SSH_USER@$HOST_NAME:/usr/share/nginx/html/production
    environment:
        name: production
        url: https://$PROXY_HOST_NAME/