language: node_js
cache:
  directories:
    - node_modules
notifications:
  email: false
services:
  - mongodb
  - mysql
  - postgresql
  - redis-server
node_js:
  - 'stable'
  - '8'
env:
  global:
    - MYSQL_URI=mysql://root:@localhost/test
    - PG_URI=postgres://postgres:@localhost:5432/test
    - MONGODB_URI=mongodb://localhost/test
before_script:
  - mysql -e 'CREATE DATABASE IF NOT EXISTS test;'
  - psql -c 'create database test;' -U postgres
  - npm prune
branches:
  except:
    - /^v\d+\.\d+\.\d+$/