version: 2

jobs:
  codespell:
    docker:
      - image: circleci/python
    steps:
      - checkout
      - run:
          name: install codespell
          command: 'sudo pip install codespell'
      - run:
          # Important: all words have to be in lowercase, and separated by "\n".
          name: exclude known exceptions
          command: 'echo -e "unknwon" > words_to_ignore.txt'
      - run:
          name: check documentation spelling errors
          command: 'codespell -I ./words_to_ignore.txt docs/'

  gometalinter:
    docker:
      - image: circleci/golang:1.10
    working_directory: /go/src/github.com/grafana/grafana
    steps:
      - checkout
      - run:
          name: install gometalinter tool
          command: 'go get -u github.com/alecthomas/gometalinter'
      - run:
          name: install linters
          command: 'gometalinter --install'
      - run:
          name: run some linters
          command: 'gometalinter --vendor --deadline 6m --disable-all --enable=structcheck --enable=unconvert --enable=varcheck ./...'

  test-frontend:
    docker:
      - image: circleci/node:6.11.4
    steps:
      - checkout
      - run:
          name: install yarn
          command: 'sudo npm install -g yarn --quiet'
      - restore_cache:
          key: dependency-cache-{{ checksum "yarn.lock" }}
      # Could we skip this step if the cache has been restored? `[ -d node_modules ] || yarn install ...` should be able to apply to build step as well
      - run:
          name: yarn install
          command: 'yarn install --pure-lockfile --no-progress'
      - save_cache:
          key: dependency-cache-{{ checksum "yarn.lock" }}
          paths:
            - node_modules
      - run:
          name: frontend tests
          command: './scripts/circle-test-frontend.sh'

  test-backend:
    docker:
      - image: circleci/golang:1.10
    working_directory: /go/src/github.com/grafana/grafana
    steps:
      - checkout
      - run:
          name: build backend and run go tests
          command: './scripts/circle-test-backend.sh'

  build:
    docker:
     - image: grafana/build-container:v0.1
    working_directory: /go/src/github.com/grafana/grafana
    steps:
      - checkout
      - run:
          name: build and package grafana
          command: './scripts/build/build.sh'
      - run:
          name: sign packages
          command: './scripts/build/sign_packages.sh'
      - run:
          name: sha-sum packages
          command: 'go run build.go sha-dist'
      - run:
          name: Build Grafana.com publisher
          command: 'go build -o scripts/publish scripts/build/publish.go'
      - persist_to_workspace:
          root: .
          paths:
            - dist/grafana*
            - scripts/*.sh
            - scripts/publish

  deploy-master:
    docker:
      - image: circleci/python:2.7-stretch
    steps:
      - attach_workspace:
          at: .
      - run:
          name: install awscli
          command: 'sudo pip install awscli'
      - run:
          name: deploy to s3
          command: 'aws s3 sync ./dist s3://$BUCKET_NAME/master'
      - run:
          name: Trigger Windows build
          command: './scripts/trigger_windows_build.sh ${APPVEYOR_TOKEN} ${CIRCLE_SHA1} master'
      - run:
          name: Trigger Docker build
          command: './scripts/trigger_docker_build.sh ${TRIGGER_GRAFANA_PACKER_CIRCLECI_TOKEN}'
      - run:
          name: Publish to Grafana.com
          command: './scripts/publish -apiKey ${GRAFANA_COM_API_KEY}'

  deploy-release:
    docker:
      - image: circleci/python:2.7-stretch
    steps:
      - attach_workspace:
          at: dist
      - run:
          name: install awscli
          command: 'sudo pip install awscli'
      - run:
          name: deploy to s3
          command: 'aws s3 sync ./dist s3://$BUCKET_NAME/release'
      - run:
          name: Trigger Windows build
          command: './scripts/trigger_windows_build.sh ${APPVEYOR_TOKEN} ${CIRCLE_SHA1} release'
      - run:
          name: Trigger Docker build
          command: './scripts/trigger_docker_build.sh ${TRIGGER_GRAFANA_PACKER_CIRCLECI_TOKEN} ${CIRCLE_TAG}'

workflows:
  version: 2
  test-and-build:
    jobs:
      - codespell:
          filters:
            tags:
              only: /.*/
      - gometalinter:
          filters:
            tags:
              only: /.*/
      - build:
          filters:
            tags:
              only: /.*/
      - test-frontend:
          filters:
            tags:
              only: /.*/
      - test-backend:
          filters:
            tags:
              only: /.*/
      - deploy-master:
          requires:
            - test-backend
            - test-frontend
            - build
          filters:
            branches:
              only: master
      - deploy-release:
          requires:
            - test-backend
            - test-frontend
            - build
          filters:
            branches:
              ignore: /.*/
            tags:
              only: /^v[0-9]+(\.[0-9]+){2}(-.+|[^-.]*)$/