.travis.yml

# Caching so the next build will be fast too.
cache:
  directories:
  - $HOME/.ghc
  - $HOME/.stack
  - $HOME/.local

matrix:
  include:
  - { env: BUILD=stack RESOLVER=lts-3.22 STACK_VER=2.1.3, compiler: ghc-7.10.2, language: generic, addons: { apt: { packages: [ libgmp-dev ] } } }
  - { env: BUILD=stack RESOLVER=lts-9.21 STACK_VER=2.1.3, compiler: ghc-8.0.2,  language: generic, addons: { apt: { packages: [ libgmp-dev ] } } }
  - { env: BUILD=stack RESOLVER=lts-3.22 STACK_VER=1.9.3, compiler: ghc-7.10.2, language: generic, addons: { apt: { packages: [ libgmp-dev ] } } }
  - { env: BUILD=stack RESOLVER=lts-9.21 STACK_VER=1.9.3, compiler: ghc-8.0.2,  language: generic, addons: { apt: { packages: [ libgmp-dev ] } } }

install:
  - export PATH=$HOME/.local/bin::$HOME/.cabal/bin:$PATH
  - mkdir -p ~/.local/bin
  - |
    case "$BUILD" in
      stack)
        if [ `uname` = "Darwin" ]
        then
          travis_retry curl --insecure -L "https://github.com/commercialhaskell/stack/releases/download/v${STACK_VER}/stack-${STACK_VER}-osx-x86_64.tar.gz" | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin
        else
          travis_retry curl -L "https://github.com/commercialhaskell/stack/releases/download/v${STACK_VER}/stack-${STACK_VER}-linux-x86_64.tar.gz" | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
        fi
      ;;
    esac

script:
- |
  set -ex
  case "$BUILD" in
    stack)
      stack --version
      echo "resolver: $RESOLVER"
      stack --resolver "$RESOLVER" --no-terminal setup
      stack --resolver "$RESOLVER" --no-terminal build happy
    ;;
  esac
  set +ex