language: r

cache: packages

os:

  - linux

  - osx

r_github_packages:

  - jimhester/covr

before_install: 

  - if [ "${TRAVIS_OS_NAME}" == "osx" ]; then sudo tlmgr install preprint url; fi 

after_success:

  - if [ "${TRAVIS_OS_NAME}" == "linux" ]; then echo 'covr::coveralls(quiet=FALSE)' | R --vanilla; fi