buildkite.yml

steps:
  - command:  apk add --update alpine-sdk && bundle install && bundle exec rake rubocop
    name: rubocop
    plugins:
      docker:
        image: symbols/minimal-ruby:2.5.1
        always-pull: true
    agents:
      linux: true
  - wait
  - command: |
      if [ "x$$BUILDKITE_PULL_REQUEST" == "xfalse" ]; then
        docker login -u=$$DOCKERHUB_USERNAME -p=$$DOCKERHUB_PASSWORD
        docker build --pull --rm -t symbols/buildkite-bitbucket_server-connector:$$BUILDKITE_BRANCH .
        if [ "x$$?" == "x0" ]; then
          docker push symbols/buildkite-bitbucket_server-connector:$$BUILDKITE_BRANCH
          if [ "x$$BUILDKITE_BRANCH" == "xmaster" ]; then
            docker tag symbols/buildkite-bitbucket_server-connector:$$BUILDKITE_BRANCH \
              symbols/buildkite-bitbucket_server-connector:latest
            docker push symbols/buildkite-bitbucket_server-connector:latest
          fi
        fi
      else
        docker build --pull --rm .
      fi
      docker images -q --filter "dangling=true" | xargs -r docker rmi || true
    label: docker build
    agents:
      linux: true