sudo: false

language: php

php:
- 5.5
- 5.6
- 7.0
- 7.1
- 7.2

cache:
  directories:
  - vendor
  - $HOME/.composer/cache

env:
  matrix:
  - DEPENDENCIES=latest
  - DEPENDENCIES=oldest

install:
- >
  echo;
  if [ "$DEPENDENCIES" = "latest" ]; then
    echo "Installing the latest dependencies";
    composer update --with-dependencies --prefer-stable --prefer-dist
  else
    echo "Installing the lowest dependencies";
    composer update --with-dependencies --prefer-stable --prefer-dist --prefer-lowest
  fi;
  composer show;

before_script:
  - |
    if [ -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini ]; then
      phpenv config-rm xdebug.ini
    else
      echo "xdebug.ini does not exist"
    fi
  - vendor/bin/phpcs --config-set encoding utf-8
  - if [ "$GITHUB_COMPOSER_AUTH" ]; then composer config -g github-oauth.github.com $GITHUB_COMPOSER_AUTH; fi

script:
  # Run PHP lint on all PHP files.
  - find Classes/ Tests/ -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l
  # Check the coding style.
  - vendor/bin/phpcs --standard=Configuration/PhpCodeSniffer/Standards/Emogrifier/ Classes/ Tests/
  # Run the unit tests.
  - vendor/bin/phpunit Tests/