.gitlab-ci.yml

variables:
  ECR_REPO_NAME: tools/hclfmt
  ECR_ACCOUNT: '475806025084'
  ECR_REGION: us-west-2

stages:
  #- lint
  - build
  - release

.dockerfile_lint:
  stage: lint
  script:
    - dockerfile_lint

docker_build:
  stage: build
  script:
    - test -f prebuild && ./prebuild
    - TAG=${CI_COMMIT_TAG}
    - test ! $TAG && TAG=${CI_COMMIT_REF_SLUG}
    - CACHE=''
    - >
      function check_cache() {
        local IMAGE=${ECR_ACCOUNT}.dkr.ecr.${ECR_REGION}.amazonaws.com/${ECR_REPO_NAME}:$1
        if docker pull ${IMAGE}; then
          CACHE="${CACHE} --cache-from ${IMAGE}"
        else
          echo "Unable to pull ${IMAGE}"
        fi
      }
    - check_cache ${TAG}
    - check_cache master
    - check_cache latest
    - build_command="docker build --build-arg branch=$TAG -t ${ECR_ACCOUNT}.dkr.ecr.${ECR_REGION}.amazonaws.com/${ECR_REPO_NAME}:$TAG ${CACHE} ."
    - echo $build_command
    - ${build_command}
    - docker push ${ECR_ACCOUNT}.dkr.ecr.${ECR_REGION}.amazonaws.com/${ECR_REPO_NAME}:$TAG

docker_release:
  only:
    - tags
  when: manual
  stage: release
  script:
    - MANIFEST=$(aws ecr batch-get-image --region ${ECR_REGION} --repository-name ${ECR_REPO_NAME} --region ${ECR_REGION} --image-ids imageTag=${CI_COMMIT_TAG} --query 'images[0].imageManifest' --output text)
    - aws ecr put-image --region ${ECR_REGION} --repository-name ${ECR_REPO_NAME} --image-tag latest --image-manifest "$MANIFEST"