language: node_js
node_js:
  - 6
cache: yarn
before_install:
  - mkdir .tmp
  - curl -L https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-linux.zip -o .tmp/ninja-linux.zip
  - unzip .tmp/ninja-linux.zip -d .tmp
before_script:
  - export PATH=$PATH:$PWD/.tmp