circle.yml

version: 2.0
jobs:
  build:
    working_directory: ~/project
    docker:
      - image: quay.io/haskell_works/stack-build-minimal:2018-01-29

    steps:
      - checkout

      - run:
          name: Copying scripts
          command: |
            mkdir -p ~/.local/bin
            cp ./scripts/* ~/.local/bin

      - run:
          name: Query resolver & ghc version
          command: |
            resolver > resolver.version
            ghc-version $(cat resolver.version) >  ghc.version

      - restore_cache:
          keys:
                - stack--{{ checksum "ghc.version" }}--{{ .Environment.CACHE_VERSION }}--{{ checksum "resolver.version" }}--{{ checksum "package.yaml" }}--{{ checksum "stack.yaml" }}
                - stack--{{ checksum "ghc.version" }}--{{ .Environment.CACHE_VERSION }}--{{ checksum "resolver.version" }}--{{ checksum "package.yaml" }}
                - stack--{{ checksum "ghc.version" }}--{{ .Environment.CACHE_VERSION }}--{{ checksum "resolver.version" }}
                - stack--{{ checksum "ghc.version" }}--only

      - run:
          name: Stack setup
          command: stack setup

      - save_cache:
          key:    stack--{{ checksum "ghc.version" }}--only
          paths:  [~/.stack, ~/project/.stack-work]

      - run:
          name: Building dependencies
          command: stack build --only-dependencies

      - save_cache:
          key:    stack--{{ checksum "ghc.version" }}--{{ .Environment.CACHE_VERSION }}--{{ checksum "resolver.version" }}--{{ checksum "package.yaml" }}
          paths:  [~/.stack, ~/project/.stack-work]

      - run:
          name: Compiling
          command: stack build --test --no-run-tests

      - save_cache:
          key:    stack--{{ checksum "ghc.version" }}--{{ .Environment.CACHE_VERSION }}--{{ checksum "resolver.version" }}--{{ checksum "package.yaml" }}--{{ checksum "stack.yaml" }}
          paths:  [~/.stack, ~/project/.stack-work]

      ##### Running tests
      - run:
          name: Running tests against latest on hackage
          command: stack test