---
version: 2.1

jobs:
  test:
    docker:
    # Whenever the Go version is updated here, .travis.yml and .promu.yml
    # should also be updated.
    - image: circleci/golang:1.12
    # maildev containers are for running the email tests against a "real" SMTP server.
    # See notify/email_test.go for details.
    - image: djfarrelly/maildev@sha256:624e0ec781e11c3531da83d9448f5861f258ee008c1b2da63b3248bfd680acfa
      name: maildev-noauth
      entrypoint: bin/maildev
      command:
      - -v
    - image: djfarrelly/maildev@sha256:624e0ec781e11c3531da83d9448f5861f258ee008c1b2da63b3248bfd680acfa
      name: maildev-auth
      entrypoint: bin/maildev
      command:
      - -v
      - --incoming-user
      - user
      - --incoming-pass
      - pass

    environment:
      EMAIL_NO_AUTH_CONFIG: /tmp/smtp_no_auth.yml
      EMAIL_AUTH_CONFIG: /tmp/smtp_auth.yml

    steps:
    - checkout
    - run: make promu
    - run:
        command: |
          cat \<<EOF > $EMAIL_NO_AUTH_CONFIG
          smarthost: maildev-noauth:1025
          server: http://maildev-noauth:1080/
          EOF
          cat \<<EOF > $EMAIL_AUTH_CONFIG
          smarthost: maildev-auth:1025
          server: http://maildev-auth:1080/
          username: user
          password: pass
          EOF
    - run: make
    - run:
       command: |
         curl -s -L https://github.com/protocolbuffers/protobuf/releases/download/v3.5.1/protoc-3.5.1-linux-x86_64.zip > /tmp/protoc.zip
         unzip -d /tmp /tmp/protoc.zip
         chmod +x /tmp/bin/protoc
         echo 'export PATH=/tmp/bin:$PATH' >> $BASH_ENV
         source $BASH_ENV
         make proto
    - run: git diff --exit-code
    - store_artifacts:
        path: alertmanager
        destination: /build/alertmanager
    - store_artifacts:
        path: amtool
        destination: /build/amtool
    - run: rm -v alertmanager amtool

  build:
    machine: true

    steps:
    - checkout
    - run: make promu
    - run: promu crossbuild -v
    - persist_to_workspace:
        root: .
        paths:
        - .build
    - store_artifacts:
        path: .build
        destination: /build

  docker_hub_master:
    docker:
    - image: circleci/golang
    steps:
    - checkout
    - setup_remote_docker:
        version: 18.06.0-ce
    - run: docker run --privileged linuxkit/binfmt:v0.6
    - attach_workspace:
        at: .
    - run: make docker
    - run: make docker DOCKER_REPO=quay.io/prometheus
    - run: docker images
    - run: docker login -u $DOCKER_LOGIN -p $DOCKER_PASSWORD
    - run: docker login -u $QUAY_LOGIN -p $QUAY_PASSWORD quay.io
    - run: make docker-publish
    - run: make docker-publish DOCKER_REPO=quay.io/prometheus
    - run: make docker-manifest
    - run: make docker-manifest DOCKER_REPO=quay.io/prometheus

  docker_hub_release_tags:
    docker:
    - image: circleci/golang
    steps:
    - checkout
    - setup_remote_docker:
        version: 18.06.0-ce
    - run: docker run --privileged linuxkit/binfmt:v0.6
    - run: mkdir -v -p ${HOME}/bin
    - run: curl -L 'https://github.com/aktau/github-release/releases/download/v0.7.2/linux-amd64-github-release.tar.bz2' | tar xvjf - --strip-components 3 -C ${HOME}/bin
    - run: echo 'export PATH=${HOME}/bin:${PATH}' >> ${BASH_ENV}
    - attach_workspace:
        at: .
    - run: make promu
    - run: promu crossbuild tarballs
    - run: promu checksum .tarballs
    - run: promu release .tarballs
    - store_artifacts:
        path: .tarballs
        destination: releases
    - run: make docker DOCKER_IMAGE_TAG=$CIRCLE_TAG
    - run: make docker DOCKER_IMAGE_TAG=$CIRCLE_TAG DOCKER_REPO=quay.io/prometheus
    - run: docker login -u $DOCKER_LOGIN -p $DOCKER_PASSWORD
    - run: docker login -u $QUAY_LOGIN -p $QUAY_PASSWORD quay.io
    - run: make docker-publish DOCKER_IMAGE_TAG="$CIRCLE_TAG"
    - run: make docker-publish DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=quay.io/prometheus
    - run: make docker-manifest DOCKER_IMAGE_TAG="$CIRCLE_TAG"
    - run: make docker-manifest DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=quay.io/prometheus
    - run: |
        if [[ "$CIRCLE_TAG" =~ ^v[0-9]+(\.[0-9]+){2}$ ]]; then
          make docker-tag-latest DOCKER_IMAGE_TAG="$CIRCLE_TAG"
          make docker-tag-latest DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=quay.io/prometheus
          make docker-publish DOCKER_IMAGE_TAG="latest"
          make docker-publish DOCKER_IMAGE_TAG="latest" DOCKER_REPO=quay.io/prometheus
          make docker-manifest DOCKER_IMAGE_TAG="latest"
          make docker-manifest DOCKER_IMAGE_TAG="latest" DOCKER_REPO=quay.io/prometheus
        fi

workflows:
  version: 2
  alertmanager:
    jobs:
    - test:
        filters:
          tags:
            only: /.*/
    - build:
        filters:
          tags:
            only: /.*/
    - docker_hub_master:
        requires:
        - test
        - build
        filters:
          branches:
            only: master
    - docker_hub_release_tags:
        requires:
        - test
        - build
        filters:
          tags:
            only: /^v[0-9]+(\.[0-9]+){2}(-.+|[^-.]*)$/
          branches:
            ignore: /.*/