kujenga/goml

# Use the latest 2.1 version of CircleCI pipeline process engine. See: https://circleci.com/docs/2.0/configuration-reference
version: 2.1
jobs:
  build:
    working_directory: ~/repo
    environment:
      TEST_ARTIFACTS: /tmp/test-artifacts
      COVERAGE_FILE: /tmp/test-artifacts/coverage.txt
    docker:
      - image: cimg/go:1.16
    steps:
      - checkout
      - restore_cache:
          keys:
            - go-mod-v4-{{ checksum "go.sum" }}
      - run:
          name: Install Dependencies
          command: go mod download
      - save_cache:
          key: go-mod-v4-{{ checksum "go.sum" }}
          paths:
            - "/go/pkg/mod"
      - run:
          # https://docs.codeclimate.com/docs/circle-ci-test-coverage-example
          name: Setup Code Climate test-reporter
          command: |
            # download test reporter as a static binary
            curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
            chmod +x ./cc-test-reporter
      - run:
          name: Setup test files
          command: make
      - run:
          name: Make test and artifact directories
          command: |
            set -x
            mkdir -p $TEST_ARTIFACTS
      - run:
          name: Code Climate Before Build
          command: |
            ./cc-test-reporter before-build
      - run:
          name: Run tests
          command: |
            gotestsum --junitfile $TEST_ARTIFACTS/unit-tests.xml -- \
              -coverprofile=$COVERAGE_FILE ./...
      - run:
          name: Generate coverage report
          command: |
            set -x
            go tool cover \
              -html=$COVERAGE_FILE \
              -o=$TEST_ARTIFACTS/coverage.html
      - run:
          name: Code Climate After Build
          command: |
            set -x
            ./cc-test-reporter format-coverage \
              --prefix="$(go list -m)" \
              --input-type=gocov \
              --output=$TEST_ARTIFACTS/codeclimate.json \
              $COVERAGE_FILE
            ./cc-test-reporter upload-coverage \
              --input=$TEST_ARTIFACTS/codeclimate.json
      - store_artifacts:
          path: /tmp/test-artifacts
      - run:
          # ref: https://github.com/codecov/example-go/blob/master/.circleci/config.yml
          name: Upload coverage to Codecov
          command: |
            set -x
            bash <(curl -s https://codecov.io/bash) -f $COVERAGE_FILE