language: node_js
node_js:
- '6'
before_install: if [[ `npm -v` != 3* ]]; then npm i -g npm@3; fi
cache:
directories:
- node_modules
env:
- CXX=g++-4.8
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-4.8
sudo: false