version: 2

workflows:
  version: 2
  simple-workflow:
    jobs:
      - build:
          filters:
            tags:
              only: /.*/

jobs:
  build:
    docker:
      - image: 'fpco/stack-build:latest'

    steps:
      - checkout
      - restore_cache:
          key: 'v1-stylish-haskell-{{ arch }}-{{ .Branch }}'
      - run:
          name: 'Update cabal indices'
          command: 'cabal update'
      - run:
          name: 'Build and install'
          command: 'cabal install --enable-tests --jobs=1'
      - run:
          name: 'Run tests'
          command: 'cabal test'
      - save_cache:
          key: 'v1-stylish-haskell-{{ arch }}-{{ .Branch }}-{{ .Revision }}'
          paths:
            - '~/.cabal'
            - '~/.ghc'
      - run:
          name: 'Upload release'
          command: '.circleci/release.sh "$CIRCLE_TAG"'