language: c

sudo: false
cache:
  directories:
  - $HOME/.stack/

matrix:
  include:
    - env: CABALVER=1.24 GHCVER=8.0.1
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.1],sources: [hvr-ghc]}}

before_install:
  - mkdir -p ~/.local/bin
  - export PATH=~/.local/bin:$PATH
  - travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar -xzO --wildcards '*/stack' > ~/.local/bin/stack
  - chmod a+x ~/.local/bin/stack

install:
  - stack -j 2 setup --no-terminal --resolver nightly
  - stack -j 2 build --only-snapshot --no-terminal

script:
  - stack -j 2 test --no-terminal