language: generic

matrix:
  include:
    - os: linux
      dist: xenial
    - os: osx
      osx_image: xcode11

cache:
  directories:
    - $HOME/.stack
    - $HOME/.local

addons:
  apt:
    packages:
      - shunit2
      # for stack
      - libgmp-dev
      # for iverilog
      - flex
      - bison
      - autoconf
      - gperf
  homebrew:
    packages:
      - haskell-stack
      - shunit2
      - icarus-verilog

before_install:
  - |
      set -ex
      if [ "$TRAVIS_OS_NAME" == "linux" ]; then
        orig_pwd=$PWD
        mkdir -p ~/.local/bin
        export PATH=$HOME/.local/bin:$PATH
        # install the latest version of stack
        if [ ! -e "$HOME/.local/bin/stack" ]; then
          # based on: https://raw.githubusercontent.com/commercialhaskell/stack/stable/doc/travis-simple.yml
          travis_retry curl --retry-max-time 60 -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz > stack.tar.gz
          tar -xzf stack.tar.gz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
        fi
        # install iverilog 10.2
        if [ ! -e "$HOME/.local/bin/iverilog" ]; then
          travis_retry curl --retry-max-time 60 -L https://github.com/steveicarus/iverilog/archive/v10_2.tar.gz > v10_2.tar.gz
          tar -xzf v10_2.tar.gz
          cd iverilog-10_2
          autoconf
          ./configure --prefix=$HOME/.local
          make
          make install
          cd ..
        fi
        cd $orig_pwd
      fi
      set +ex
  - which stack iverilog shunit2
  - stack --numeric-version
  - iverilog -V 2> /dev/null | head -n 1

install:
  make

script:
  make test