language: node_js
node_js:
    # make sure we work with a range of node versions.
    # As of the time of writing:
    #  - 4.x is still in LTS (until April 2018), but some of our deps (notably
    #    extract-zip) don't work with it
    #  - 5.x has been EOLed for nearly a year.
    #  - 6.x is the current 'LTS' version
    #  - 7.x is the current 'current' version (until October 2017)
    #
    # see: https://github.com/nodejs/LTS/
    - 6.0
    - 6
    - 7
install:
    # clone the deps with depth 1: we know we will only ever need that one
    # commit.
    - scripts/fetch-develop.deps.sh --depth 1 && npm install