.travis.yml

# For further information on this Travis setup:
#   http://docs.haskellstack.org/en/stable/GUIDE.html#travis-with-caching

# use new container infrastructure to allow caching
sudo: false

# choose light-weight base image
language: c

addons:
  apt:
    packages:
    - libgmp-dev      # for ghc
    - libxxf86vm-dev  # for GLFW
    - libgl1-mesa-dev
    - libxi-dev
    - libxcursor-dev
    - libxinerama-dev
    - libxrandr-dev
    - zlib1g-dev
    - libpulse-dev

# different configurations:
env:
  - ARGS="--resolver lts-9.6"

before_install:
# Download and unpack the stack executable
- mkdir -p ~/.local/bin
- export PATH=$HOME/.local/bin:$PATH
- travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
# Setup stack
- stack --no-terminal setup
# Install hscolour to remove some haddock warnings; try removing when 
# changing to a stable Stack resolver.
- stack --no-terminal install hscolour

# build
script: stack $ARGS --no-terminal --install-ghc test

# set up caching
cache:
  directories:
  - $HOME/.stack