version: 2.1
executors:
  go1_11:
    docker:
      - image: circleci/golang:1.11
        environment:
          GO111MODULE: "on"
  go1_12:
    docker:
      - image: circleci/golang:1.12
        environment:
          GO111MODULE: "on"

commands:
  gomod:
    steps:
      - restore_cache:
          keys: [deps-]
      - run:
          name: Download go module dependencies
          command: go mod download
      - save_cache:
          key: deps-{{ checksum "go.sum" }}-{{ checksum "go.sum" }}
          paths: [/go/pkg/mod]

jobs:
  lint:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_12
    steps:
      - checkout
      - gomod
      - run:
          name: go-lint
          command: |
            go get -u -v golang.org/x/lint/golint
            golint -set_exit_status ./...

  vet:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_12
    steps:
      - checkout
      - gomod
      - run:
          name: go-vet
          command: go vet ./...

  test_1_11:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_11
    steps:
      - checkout
      - gomod
      - run: go test -v -race ./...

  test_1_12:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_12
    steps:
      - checkout
      - gomod
      - run: go test -v -race ./...

  build_cli:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_12
    steps:
      - checkout
      - gomod
      - run: make build
      - store_artifacts:
          path: bin
          destination: /

  build_image:
    working_directory: /go/src/github.com/CityOfZion/neo-go
    executor: go1_12
    docker:
      - image: alpine
    steps:
      - run: apk update && apk add git make curl tar
      - checkout
      - setup_remote_docker
      - run:
          name: Install Docker client
          command: |
            set -x
            VER="17.03.0-ce"
            curl -L -o /tmp/docker-$VER.tgz https://get.docker.com/builds/Linux/x86_64/docker-$VER.tgz
            tar -xz -C /tmp -f /tmp/docker-$VER.tgz
            mv /tmp/docker/* /usr/bin
      - run: make image


workflows:
  version: 2
  workflow:
    jobs:
      - vet:
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/
      - lint:
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/
      - test_1_11:
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/
      - test_1_12:
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/
      - build_cli:
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/
      - build_image:
          requires:
            - build_cli
          filters:
            tags:
              only: v/[0-9]+\.[0-9]+\.[0-9]+/