stages:
  - prepare
  - test
  - build

cache:
  key: arm-build
  untracked: true
  paths:
    - node_modules/
    - build
  policy: pull-push

install_dependences: 
  image: node:12
  stage: prepare
  script: yarn install

.build_job:
  stage: build
  image: node:12
  script:
    - echo "build"
    - yarn build
  artifacts:
    paths:
      - build/
    untracked: false
    expire_in: 30 days
build_1:
  extends: .build_job

build_2:
  extends: .build_job