.gitlab-ci.yml

stages:
  - test
  - release

test:linux:
  stage: test
  image: golang:latest
  variables:
    GIT_URL: github.com
    GOPATH: /go
    PROJECT_DIR: $GOPATH/src/$GIT_URL/$CI_PROJECT_NAMESPACE
  coverage: '/coverage: \d+\.\d+%/'
  script:
    - mkdir -p $PROJECT_DIR
    - cp -r $CI_PROJECT_DIR $PROJECT_DIR/$CI_PROJECT_NAME
    - cd $PROJECT_DIR/$CI_PROJECT_NAME
    - go generate ./...
    - go test -cover ./...

release:docker:
  stage: release
  image: docker:git
  services:
    - docker:dind
  dependencies:
    - test:linux
  script:
    - git describe --tags && LATEST_TAG=`git describe --tags --abbrev=0 | sed 's/[^0-9.]*//g'` || LATEST_TAG="1.0.0"
    - OLD_IFS=$IFS; IFS=".-"; set -- $LATEST_TAG; IFS=$OLD_IFS; TAG_MAJOR=$1; TAG_MINOR=$2; TAG_MICRO=$3
    - function join_by { local IFS="$1"; shift; echo "$*"; }

    - LATEST_IMAGE="$CI_REGISTRY_IMAGE:latest"
    - images="$CI_REGISTRY_IMAGE:$LATEST_TAG $CI_REGISTRY_IMAGE:$(join_by . $TAG_MAJOR $TAG_MINOR $TAG_MICRO) $CI_REGISTRY_IMAGE:$(join_by . $TAG_MAJOR $TAG_MINOR) $CI_REGISTRY_IMAGE:$TAG_MAJOR"
    - unique_images=$(echo "$images" | tr ' ' '\n' | sort -u | tr '\n' ' ')

    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY

    - docker build --pull -t $LATEST_IMAGE --build-arg PROJECT_NAME=$CI_PROJECT_NAME .
    - docker push $LATEST_IMAGE

    - for image in $unique_images; do docker tag "$LATEST_IMAGE" "$image"; docker push "$image"; done