# These environment variables must be set in CircleCI UI
#
# DOCKERHUB_REPO - docker hub repo, format: <username>/<repo>
# DOCKER_EMAIL   - login info for docker hub
# DOCKER_USER
# DOCKER_PASS
#
machine:
  services:
    - docker

dependencies:
  # make sure to keep the docker cache dir
  cache_directories:
    - "~/docker"

  override:
    - docker info

    # build the container, use circleci's docker cache workaround
    # only use 1 image per day to keep the cache size from getting 
    # too big and slowing down the build
    - I="image-$(date +%j).tar"; if [[ -e ~/docker/$I ]]; then echo "Loading $I"; docker load -i ~/docker/$I; fi

    # create version.json
    - >
        printf '{"commit":"%s","version":"%s","source":"https://github.com/%s/%s","build":"%s"}\n' 
        "$CIRCLE_SHA1" 
        "$CIRCLE_TAG" 
        "$CIRCLE_PROJECT_USERNAME" 
        "$CIRCLE_PROJECT_REPONAME" 
        "$CIRCLE_BUILD_URL"
        > version.json
    - cp version.json $CIRCLE_ARTIFACTS

    - docker build -t syncserver:build .

    - >
        docker images --no-trunc | 
        awk '/^app/ {print $3}' | 
        tee $CIRCLE_ARTIFACTS/docker-image-shasum256.txt

    # Clean up any old images and save the new one
    - I="image-$(date +%j).tar"; mkdir -p ~/docker; rm ~/docker/*; docker save syncserver:build > ~/docker/$I; ls -l ~/docker

test:
  override:
    - docker run syncserver:build /bin/sh -c "flake8 syncserver && nosetests syncstorage.tests"

# appropriately tag and push the container to dockerhub
deployment:
  hub_latest:
    # push certain branches, they are used by fxa-dev for deployment
    branch: /^(master|feature.*|dockerpush.*)$/
    commands:
      - "[ ! -z $DOCKERHUB_REPO ]"
      - docker login -e "$DOCKER_EMAIL" -u "$DOCKER_USER" -p "$DOCKER_PASS"
      - |
          if [ $CIRCLE_BRANCH = "master" ]; then
            CIRCLE_BRANCH=latest
          fi
          echo ${DOCKERHUB_REPO}:${CIRCLE_BRANCH}
          docker tag syncserver:build ${DOCKERHUB_REPO}:${CIRCLE_BRANCH}
          docker push ${DOCKERHUB_REPO}:${CIRCLE_BRANCH}


  hub_releases:
    # push all tags
    tag: /.*/
    commands:
      - "[ ! -z $DOCKERHUB_REPO ]"
      - docker login -e $DOCKER_EMAIL -u $DOCKER_USER -p $DOCKER_PASS
      - "docker tag syncserver:build ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
      - "docker images"
      - "docker push ${DOCKERHUB_REPO}:${CIRCLE_TAG}"