language: node_js

sudo: false

node_js:
  # https://github.com/nodejs/LTS
  - "6" # ends April 2019
  - "8" # ends December 2019
  - "10" # ends April 2021

cache:
  directories:
  - node_modules

env:
  - HUSKY_SKIP_INSTALL=true

before_script:
  - npm install coveralls

  # Make npm run work for the script phase:
  - if [ "x$TRAVIS_NODE_VERSION" = "x6" ]; then npm config set ignore-scripts false; fi
  # these build targets only need to run once per build, so let's conserve a few resources
  - if [ "x$TRAVIS_NODE_VERSION" = "x10" ]; then npm run lint; fi

script:
  - npm run test-check-coverage

after_success:
  - if [ "x$TRAVIS_NODE_VERSION" = "x10" ]; then cat ./coverage/lcov.info | coveralls lib; fi

git:
  depth: 3