.travis.yml

language: haskell
sudo: required

git:
  depth: 5

cabal: 3.0

cache:
  directories:
    - "$HOME/.cabal/store"
    - "$HOME/.stack"
    - "$TRAVIS_BUILD_DIR/.stack-work"

matrix:
  include:

    # Cabal
    #- ghc: 8.8.1
    - ghc: 8.6.5
    - ghc: 8.4.4
    - ghc: 8.2.2
    - ghc: 8.0.2
    - ghc: 7.10.2

    # Stack
    - ghc: 8.6.5
      env: STACK_YAML="$TRAVIS_BUILD_DIR/stack.yaml"

install:
  - |
    if [ -z "$STACK_YAML" ]; then
      ghc --version
      cabal --version
      cabal new-update
      cabal new-build
    else
      # install stack
      curl -sSL https://get.haskellstack.org/ | sh

      # build project with stack
      stack --version
      stack build --system-ghc --no-run-tests --no-run-benchmarks
    fi

script:
  - # curl -sSL https://raw.github.com/ndmitchell/neil/master/misc/travis.sh | sh -s -- hlint .