.travis.yml

language: node_js
node_js:
  - "0.10"
  - "4.9"
  - "6.17"
  - "8.16"
  - "10.16"
  - "12.11"
sudo: false
cache:
  directories:
    - node_modules
before_install:
  # Configure npm
  - |
    # Skip updating shrinkwrap / lock
    npm config set shrinkwrap false
  # Setup Node.js version-specific dependencies
  - |
    # eslint for linting
    # - remove for Node.js < 8
    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 8 ]]; then
      npm rm --save-dev eslint
    fi
  - |
    # mocha for testing
    # - use 3.x for Node.js < 4
    # - use 5.x for Node.js < 6
    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 4 ]]; then
      npm install --save-dev mocha@3.5.3
    elif [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
      npm install --save-dev mocha@5.2.0
    fi
  - |
    # nyc for coverage
    # - use 10.x for Node.js < 4
    # - use 11.x for Node.js < 6
    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 4 ]]; then
      npm install --save-dev nyc@10.3.2
    elif [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
      npm install --save-dev nyc@11.9.0
    fi
  - |
    # supertest for http calls
    # - use 2.0.0 for Node.js < 4
    # - use 3.4.2 for Node.js < 6
    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 4 ]]; then
      npm install --save-dev supertest@2.0.0
    elif [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
      npm install --save-dev supertest@3.4.2
    fi
  # Update Node.js modules
  - |
    # Prune & rebuild node_modules
    if [[ -d node_modules ]]; then
      npm prune
      npm rebuild
    fi

script:
  - |
    # Run test script
    npm run-script test-ci
  - |
    # Run linting
    if npm -ps ls eslint | grep -q eslint; then
      npm run-script lint
    fi
after_script:
  - |
    # Upload coverage to coveralls, if exists
    if [[ -d .nyc_output ]]; then
      npm install --save-dev coveralls@2
      nyc report --reporter=text-lcov | coveralls
    fi