version: 2
jobs:
  build:
    docker:
      - image: fpco/stack-build:lts-11.11
    steps:
      - checkout
      - restore_cache:
          keys:
            - stack
      - run:
          name: Build dependencies
          command: stack build --only-dependencies
      - save_cache:
          key: stack
          paths:
            - ~/.stack/
      - run:
          name: Build package
          command: stack build