version: 2.1

executors:
    golang:
        parameters:
            version:
                type: string
        docker:
            - image: circleci/golang:<< parameters.version >>

commands:
    get_deps:
        description: "Get go dependencies"
        steps:
            - run: go get github.com/jstemmer/go-junit-report

    run_test:
        description: "Run unit tests for a go module"
        parameters:
            test_name:
                type: string
            module:
                type: string
            coverage:
                default: false
                type: boolean
            allow_fail:
                type: boolean
                default: false
        steps:
            - run:
                name: "Run tests for <<parameters.test_name>>"
                command: |
                    TEST_DIR="/tmp/test-results/<<parameters.test_name>>"
                    mkdir -p ${TEST_DIR}
                    trap "go-junit-report </tmp/test-results/go-test.out > ${TEST_DIR}/go-test-report.xml" EXIT
                    go test <<parameters.module>> -race -v \
                        <<# parameters.coverage >>-coverprofile=/tmp/workspace/coverage.txt -covermode=atomic<</ parameters.coverage >> \
                        | tee /tmp/test-results/go-test.out <<# parameters.allow_fail >>|| true<</ parameters.allow_fail >>

jobs:
    go:
        parameters:
            version:
                type: string
            allow_fail:
                type: boolean
                default: false
        executor:
            name: golang
            version: "<<parameters.version>>"
        working_directory: /go/src/github.com/pelletier/go-toml
        environment:
          GO111MODULE: "on"
        steps:
            - checkout
            - run: mkdir -p /tmp/workspace
            - run: go fmt ./... <<# parameters.allow_fail >>|| true<</ parameters.allow_fail >>
            - get_deps
            - run_test:
                test_name: "go-toml"
                module: "github.com/pelletier/go-toml"
                coverage: true
                allow_fail: <<parameters.allow_fail>>
            - run_test:
                test_name: "tomljson"
                module: "github.com/pelletier/go-toml/cmd/tomljson"
                allow_fail: <<parameters.allow_fail>>
            - run_test:
                test_name: "tomll"
                module: "github.com/pelletier/go-toml/cmd/tomll"
                allow_fail: <<parameters.allow_fail>>
            - run_test:
                test_name: "query"
                module: "github.com/pelletier/go-toml/query"
                allow_fail: <<parameters.allow_fail>>
            - store_test_results:
                path: /tmp/test-results
    codecov:
        docker:
            - image: "circleci/golang:1.12"
        steps:
            - attach_workspace:
                at: /tmp/workspace
            - run:
                name: "upload to codecov"
                working_directory: /tmp/workspace
                command: |
                    curl https://codecov.io/bash > codecov.sh
                    bash codecov.sh -v
    docker:
        docker:
            - image: "circleci/golang:1.12"
        steps:
            - checkout
            - setup_remote_docker:
                  docker_layer_caching: true
            - run: docker build -t pelletier/go-toml:$CIRCLE_SHA1 .
            - run: docker login -u $DOCKER_USER -p $DOCKER_PASS
            - run:
                name: "Publish docker image"
                command: |
                    IMAGE_NAME="pelletier/go-toml"
                    IMAGE_SHA_TAG="${IMAGE_NAME}:$CIRCLE_SHA1"
                    if [ "${CIRCLE_BRANCH}" = "master" ]; then
                        docker tag ${IMAGE_SHA_TAG} ${IMAGE_NAME}:latest
                        docker push ${IMAGE_NAME}:latest
                    fi
                    if [ "${CIRCLE_TAG}" != "" ]; then
                        docker tag ${IMAGE_SHA_TAG} ${IMAGE_NAME}:${CIRCLE_TAG}
                        docker push ${IMAGE_NAME}:${CIRCLE_TAG}
                    fi

workflows:
    version: 2.1
    build:
        jobs:
            - go:
                name: "go1_11"
                version: "1.11"
            - go:
                name: "go1_12"
                version: "1.12"
                post-steps:
                    - run: go tool cover -html=/tmp/workspace/coverage.txt -o coverage.html
                    - store_artifacts:
                        path: /tmp/workspace/coverage.txt
                    - store_artifacts:
                        path: coverage.html
                    - persist_to_workspace:
                        root: /tmp/workspace
                        paths:
                            - coverage.txt
            - go:
                name: "gotip"
                version: "1.12" # use as base
                allow_fail: true
                pre-steps:
                    - restore_cache:
                        keys:
                            - go-tip-source
                    - run:
                        name: "Compile go tip"
                        command: |
                            if [ ! -d "/tmp/go" ]; then
                                git clone https://go.googlesource.com/go /tmp/go
                            fi
                            cd /tmp/go
                            git checkout master
                            git pull
                            cd src
                            ./make.bash
                            echo 'export PATH="/tmp/go/bin:$PATH"' >> $BASH_ENV
                    - run: go version
                    - save_cache:
                        key: go-tip-source
                        paths:
                            - "/tmp/go"
            - codecov:
                requires:
                    - go1_11
                    - go1_12
            - docker:
                requires:
                    - codecov