.gitlab-ci.yml

variables:
  TAG_LATEST: $CI_REGISTRY/$GITLAB_USER_LOGIN/portugolweb:latest
  TAG_COMMIT: $CI_REGISTRY/$GITLAB_USER_LOGIN/portugolweb:$CI_COMMIT_SHORT_SHA
  DEV_BRANCH: "develop"

.base-rules:
  # https://how-to.dev/how-to-set-up-monorepo-build-in-gitlab-ci
  rules:
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
      when: always
    - if: '$CI_PIPELINE_SOURCE == "push"'
      when: never
    - if: $CI_COMMIT_TAG
      when: never
#   - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
#     changes:
#       - $RULES_CHANGES_PATH
    - when: manual
      allow_failure: true

.test-rules:
  extends: .base-rules
  rules:
    - if: $CI_COMMIT_BRANCH == $DEV_BRANCH
      when: always

stages:
  - test
  - build
  - publish

cache:
  key: "$CI_PROJECT_ID"
  paths:
    - node_modules/ # npm install
    - dist/ # webpack

test-job:
  stage: test
  image: node:alpine
  extends: .test-rules
  needs: []
  script:
    - npm install
    - npm run test

build-job:
  stage: build
  image: node:alpine
  extends: .base-rules
  needs: ["test-job"]
  script:
    - npm install
    - npm run build
    - npm run buildace

# https://blog.callr.tech/building-docker-images-with-gitlab-ci-best-practices/
publish-nodejs-exemplo:
  stage: publish
  extends: .base-rules
  needs: ["build-job"]

  # do not use latest
  image: docker:dind

  script:
    # https://stackoverflow.com/questions/45344158/multiple-dockerignore-files-in-same-directory
    - export DOCKER_BUILDKIT=1
    # fetches the latest image (not failing if image is not found)
    - docker pull $TAG_LATEST || true
    # builds the project, passing proxy variables, using OCI labels
    # notice the cache-from, which is going to use the image we just pulled locally
    # the built image is tagged locally with the commit SHA, and then pushed to 
    # the GitLab registry
    - >
      docker build
      --pull
      --cache-from $TAG_LATEST
      --label "org.opencontainers.image.title=$CI_PROJECT_TITLE"
      --label "org.opencontainers.image.url=$CI_PROJECT_URL"
      --label "org.opencontainers.image.created=$CI_JOB_STARTED_AT"
      --label "org.opencontainers.image.revision=$CI_COMMIT_SHA"
      --label "org.opencontainers.image.version=$CI_COMMIT_REF_NAME"
      --tag $TAG_COMMIT
      -f production.Dockerfile
      .
    - docker tag $TAG_COMMIT $TAG_LATEST
    - docker push "$TAG_COMMIT"
    - docker push "$TAG_LATEST"