.travis.yml

language: r
#sudo: false
pandoc_version: 2.3
script: 
  - Rscript --no-save --verbose --no-save ci_test.R
cache: 
  packages: true
  directories:
    - $HOME/.ghc
    - $HOME/.cabal
    - $HOME/.local
    - $HOME/.stack
warnings_are_errors: false
jobs:
  include:
    - os: linux
      r: oldrel
    - os: linux
      r: release
    - os: linux
      r: devel
    - os: osx
      osx_image: xcode8.3
#addons:
#  homebrew: 
#    packages: pandoc-crossref
before_install:
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then 
    wget -q -O-  https://github.com/lierdakil/pandoc-crossref/releases/download/v0.3.3.0/osx-ghc84-pandoc23.tar.gz|tar -xz &&
    sudo mv pandoc-crossref /usr/local/bin &&
    echo "  DEPLOYED pandoc-crossref"; fi
    #travis_wait 30 brew install llvm &&
    #echo "  DEPLOYED llvm " &&
    #export PATH="/usr/local/opt/llvm/bin:$PATH" &&
    #export LDFLAGS="-L/usr/local/opt/llvm/lib" &&
    #export CFLAGS="-I/usr/local/opt/llvm/include"; fi
  - if [[ "$TRAVIS_OS_NAME" == "linux" && 
    ! -f $HOME/.local/bin/pandoc-crossref ]]; 
    then wget -qO- https://get.haskellstack.org/ | sh && 
    git clone https://github.com/lierdakil/pandoc-crossref.git &&
    cd pandoc-crossref && git checkout v0.3.3.0 &&
    stack install && cd ..; fi
  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
    sudo ln -s $HOME/.local/bin/* /usr/local/bin/; fi