version: 2.1

workflows:
  version: 2
  build:
    jobs:
      - checkout_code
      - lint:
          requires:
            - checkout_code
          go_version: "1.12"
          vips_version: "8.8"
      - build:
          name: go1.12_vips8.8
          requires:
            - checkout_code
          go_version: "1.12"
          vips_version: "8.8"
      - build:
          name: go1.12_vips8.7
          requires:
            - checkout_code
          go_version: "1.12"
          vips_version: "8.7"
      - build:
          name: go1.12_vips8.6
          requires:
            - checkout_code
          go_version: "1.12"
          vips_version: "8.6"
      - build:
          name: go1.11_vips8.8
          requires:
            - checkout_code
          go_version: "1.11"
          vips_version: "8.8"
      - build:
          name: go1.11_vips8.7
          requires:
            - checkout_code
          go_version: "1.11"
          vips_version: "8.7"
      - build:
          name: go1.11_vips8.6
          requires:
            - checkout_code
          go_version: "1.11"
          vips_version: "8.6"
      - build:
          name: go1.10_vips8.8
          requires:
            - checkout_code
          go_version: "1.10"
          vips_version: "8.8"
      - build:
          name: go1.10_vips8.7
          requires:
            - checkout_code
          go_version: "1.10"
          vips_version: "8.7"
      - build:
          name: go1.10_vips8.6
          requires:
            - checkout_code
          go_version: "1.10"
          vips_version: "8.6"

executors:
  imgproxy:
    docker:
      - image: "darthsim/imgproxy-circleci:latest"
    working_directory: /go/src/imgproxy
    environment:
      BASH_ENV: "/root/.bashrc"

commands:
  setup_vips:
    parameters:
      vips_version:
        type: string
    steps:
      - run:
          name: Setup Vips
          command: |
            echo 'LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/root/vips/<< parameters.vips_version >>/lib"' >> $BASH_ENV
            echo 'PKG_CONFIG_PATH="$PKG_CONFIG_PATH:/root/vips/<< parameters.vips_version >>/lib/pkgconfig"' >> $BASH_ENV

  install_go:
    parameters:
      go_version:
        type: string
    steps:
      - run:
          name: Install Go
          command: |
            gvm install go<< parameters.go_version >> -B
            gvm use go<< parameters.go_version >> --default
            echo 'export GOPATH=/go' >> $BASH_ENV
            echo 'export PATH="$PATH:$(go env GOPATH)/bin"' >> $BASH_ENV
            echo 'export CGO_LDFLAGS_ALLOW="-s|-w"' >> $BASH_ENV

jobs:
  checkout_code:
    docker:
      - image: circleci/slim-base:latest
    working_directory: /go/src/imgproxy
    steps:
      - checkout:
          path: /go/src/imgproxy
      - persist_to_workspace:
          root: .
          paths: [.]

  lint:
    executor: imgproxy
    parameters:
      vips_version:
        type: string
      go_version:
        type: string
    steps:
      - attach_workspace:
          at: .
      - setup_vips:
          vips_version: << parameters.vips_version >>
      - install_go:
          go_version: << parameters.go_version >>
      - run:
          name: Install golangci-lint
          command: curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | BINARY=golangci-lint sh -s -- -b $(go env GOPATH)/bin v1.16.0
      - run:
          name: Lint imgproxy
          command: golangci-lint run .

  build:
    executor: imgproxy
    parameters:
      vips_version:
        type: string
      go_version:
        type: string
    steps:
      - attach_workspace:
          at: .
      - setup_vips:
          vips_version: << parameters.vips_version >>
      - install_go:
          go_version: << parameters.go_version >>
      - run:
          name: Build imgproxy
          command: go test -v