language: node_js
os:
 - linux
node_js:
  - "8"
  - "7"
  - "6"
  - "5"
  - "4"
before_install:
  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then npm install -g npm@1.3 ; elif [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then case "$(npm --version)" in 1.*) npm install -g npm@1.4.28 ;; 2.*) npm install -g npm@2 ;; esac ; fi'
  - 'if [ "${TRAVIS_NODE_VERSION}" != "0.6" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then if [ "${TRAVIS_NODE_VERSION%${TRAVIS_NODE_VERSION#[0-9]}}" = "0" ] || [ "${TRAVIS_NODE_VERSION:0:4}" = "iojs" ]; then npm install -g npm@4.5 ; else npm install -g npm; fi; fi'
install:
  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then nvm install 0.8 && npm install -g npm@1.3 && npm install -g npm@1.4.28 && npm install -g npm@2 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
script:
  - 'if [ -n "${PRETEST-}" ]; then npm run pretest ; fi'
  - 'if [ -n "${POSTTEST-}" ]; then npm run posttest ; fi'
  - 'if [ -n "${COVERAGE-}" ]; then npm run coverage ; fi'
  - 'if [ -n "${TEST-}" ]; then npm run tests-only ; fi'
sudo: false
env:
  - TEST=true
matrix:
  fast_finish: true
  include:
    - node_js: "lts/*"
      env: PRETEST=true
  allow_failures:
    - os: osx
    - env: TEST=true ALLOW_FAILURE=true
    - env: COVERAGE=true