# In case something goes horribly wrong, you can fall back to `image: ruby:2.5`
image: git-r3lab.uni.lu:4567/r3/docker/jekyll-lcsb:1.4

stages:
  - build
  - generate_index
  - deploy

# !!!!!!!      README      !!!!!
# We are in the transition period - and the website is deployed two times - to gitlab pages and to a separate VM
# In order to migrate to a new deployment:
#  1) remove "Old deployment" section - build_pages, generate the search index and pages tasks
#  2) rename "new pages" to "pages" in the new deployment section, and "new_public" to "public"; you might also rename directories (skip "new" part)
#  3) remove ".ci/deploy.sh", ".ci/build_indices.sh"


# Old deployment =================================================================

build_pages:
  stage: build
  before_script:
    - apt-get -qq update
    - apt-get install -y -qq git-lfs
    - gem install bundler:2.0.2 && bundle install
  script:
    - bash .ci/deploy.sh
  variables:
    JEKYLL_ENV: production
  artifacts:
    expire_in: 1 day
    paths:
      - build


generate the search index:
  stage: generate_index
  image: node:13.8.0-slim
  rules:
    - if: $CI_COMMIT_BRANCH == "master"
    - if: $CI_COMMIT_BRANCH == "develop"
  script:
    - bash .ci/build_indices.sh
    - mv build processed_build
  artifacts:
    expire_in: 1 day
    paths:
      - processed_build

pages:
  image: alpine:3.11.3
  stage: deploy
  rules:
    - if: $CI_COMMIT_BRANCH == "master"
    - if: $CI_COMMIT_BRANCH == "develop"
  script:
    - mv processed_build public
  artifacts:
    expire_in: 1 week
    paths:
      - public


# New deployment ==================================================================

build pages for VM deployment:
  stage: build
  variables:
    JEKYLL_ENV: production
    BUNDLER_VERSION: 2.0.2
  artifacts:
    expire_in: 1 day
    paths:
      - new_build
  rules:
    - if: $CI_COMMIT_BRANCH
    - if: $CI_MERGE_REQUEST_ID
  before_script:
    - gem install bundler:$BUNDLER_VERSION && bundle install
  script:
    # Generate the configuration for forks (will use Gitlab Pages on personal namespaces)
    - 'echo "url: https://$CI_PROJECT_NAMESPACE.$CI_PAGES_DOMAIN" >> .ci/_config_gitlab_pages.yml'
    - 'echo "baseurl: /$CI_PROJECT_NAME" >> .ci/_config_gitlab_pages.yml'

    # If there is no config for the current branch, use the one for Gitlab Pages
    - 'if [ ! -f ".ci/_config_$CI_COMMIT_REF_NAME.yml" ]; then mv .ci/_config_gitlab_pages.yml .ci/_config_$CI_COMMIT_REF_NAME.yml; fi'

    # Display, which configuration is used
    - 'echo "Configuration: " && cat ".ci/_config_$CI_COMMIT_REF_NAME.yml"'

    # Run Jekyll with custom configuration
    - bundle exec jekyll build -d new_build --config "_config.yml,.ci/_config_$CI_COMMIT_REF_NAME.yml"


generate the search index for VM deployment:
  stage: generate_index
  image: node:13.8.0-slim
  variables:
    LUNR_VERSION: 2.3.8
    DIRECTORY: new_build
  script:
    - bash .ci/build_indices_new.sh
    - mv new_build new_processed_build
  rules:
    - if: $CI_COMMIT_BRANCH
    - if: $CI_MERGE_REQUEST_ID
  artifacts:
    expire_in: 1 day
    paths:
      - new_processed_build

# Deploy to Gitlab Pages - to be run only by forks; change to pages once it's ready
new pages:
  image: alpine:3.11.3
  stage: deploy
  rules:
    - if: '$CI_PROJECT_NAMESPACE != "R3" && $CI_PROJECT_NAMESPACE != "R3-core"'
    - if: $CI_MERGE_REQUEST_ID
  script:
    - mv new_processed_build new_public
  artifacts:
    expire_in: 1 week
    paths:
      - new_public

## Deploys the website to a separate VM
deploy to production:
  stage: deploy
  image: alpine:3.1
  before_script:
    - 'which ssh-agent || ( apk add --update openssh )'
    - eval $(ssh-agent -s)
    - echo "$B64SSHPRIVKEY" | base64 -d | tr -d '\r' | ssh-add - > /dev/null
    - mkdir -p ~/.ssh && chmod 700 ~/.ssh
    - 'echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
    - echo "$KNOWNHOSTS" > ~/.ssh/known_hosts
    - chmod 644 ~/.ssh/known_hosts
  rules:
    - if: '$CI_COMMIT_BRANCH == "develop" && $CI_PROJECT_PATH == "R3/howto-cards"'
    - if: '$CI_COMMIT_BRANCH == "master" && $CI_PROJECT_PATH == "R3/howto-cards"'
  script:
    - ssh -p $SSHPORT $SSHCONNECT "mkdir -p ~/$CI_COMMIT_BRANCH/sources/public/$CI_JOB_ID ~/$CI_COMMIT_BRANCH/public"
    - scp -P $SSHPORT -r new_processed_build/* $SSHCONNECT:~/$CI_COMMIT_BRANCH/sources/public/$CI_JOB_ID
    - ssh -p $SSHPORT $SSHCONNECT "cd ~/$CI_COMMIT_BRANCH/public && ln -fs ../sources/public/$CI_JOB_ID/* . && cd ~/$CI_COMMIT_BRANCH/sources/public/ && find . -type d -not -newermt '-1 minutes' -exec rm -rf {} +;"

