.travis.yml

# Using the default recommended .travis.yml for Haskell Stack, taken from here: https://raw.githubusercontent.com/commercialhaskell/stack/stable/doc/travis-simple.yml

# Choose a build environment
os: linux
dist: xenial

# Do not choose a language; we provide our own build tools.
language: generic

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

# Ensure necessary system libraries are present
addons:
  apt:
    packages:
      - libgmp-dev

before_install:
  # install librdkafka-dev
  - wget -qO - https://packages.confluent.io/deb/5.3/archive.key | sudo apt-key add -
  - sudo add-apt-repository "deb [arch=amd64] https://packages.confluent.io/deb/5.3 stable main"
  - sudo apt-get update && sudo apt-get install librdkafka-dev
  # Download and unpack the stack executable
  - mkdir -p ~/.local/bin
  - export PATH=$HOME/.local/bin:$PATH
  - travis_retry curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'

install:
  # Build dependencies
  - stack --no-terminal --install-ghc test --only-dependencies

script:
  # Build the package, its tests, and its docs and run the tests
  - stack --no-terminal test --haddock --no-haddock-deps