.travis.yml

# Travis CI (MIT License) configuration file
# @link https://travis-ci.org/

# Use new container based environment
sudo: false

# Declare project language.
# @link http://about.travis-ci.org/docs/user/languages/php/
language: php

# Declare versions of PHP to use. Use one decimal max.
# @link http://docs.travis-ci.com/user/build-configuration/
matrix:
    fast_finish: true

    include:
        # Current $required_php_version for WordPress: 5.2.4
        # aliased to 5.2.17
        - php: '5.2'
          dist: precise
        # aliased to a recent 5.6.x version
        - php: '5.6'
          dist: trusty
          env: SNIFF=1
        # aliased to a recent 7.1 version
        - php: '7.1'
          dist: trusty

before_script:
  - export PHPCS_DIR=/tmp/phpcs
  - export WPCS_DIR=/tmp/wpcs
  - export PHPCOMPAT_DIR=/tmp/phpcompatibility
  # Install CodeSniffer for WordPress Coding Standards checks.
  - if [[ "$SNIFF" == "1" ]]; then git clone -b master --depth 1 https://github.com/squizlabs/PHP_CodeSniffer.git $PHPCS_DIR; fi
  # Install WordPress Coding Standards.
  - if [[ "$SNIFF" == "1" ]]; then git clone -b master --depth 1 https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards.git $WPCS_DIR; fi
  # Install PHPCompatibility.
  - if [[ "$SNIFF" == "1" ]]; then git clone -b master --depth 1 https://github.com/wimg/PHPCompatibility.git $PHPCOMPAT_DIR; fi
  # Hop into CodeSniffer directory.
  - if [[ "$SNIFF" == "1" ]]; then cd $PHPCS_DIR; fi
  # Set install path for WordPress Coding Standards.
  # @link https://github.com/squizlabs/PHP_CodeSniffer/blob/4237c2fc98cc838730b76ee9cee316f99286a2a7/CodeSniffer.php#L1941
  - if [[ "$SNIFF" == "1" ]]; then $PHPCS_DIR/bin/phpcs --config-set installed_paths $WPCS_DIR,$PHPCOMPAT_DIR; fi
  # Hop back into project dir.
  - if [[ "$SNIFF" == "1" ]]; then cd $TRAVIS_BUILD_DIR; fi
  # After CodeSniffer install you should refresh your path.
  - if [[ "$SNIFF" == "1" ]]; then phpenv rehash; fi


# Run test script commands.
# All commands must exit with code 0 on success. Anything else is considered failure.
script:
  # Search for PHP syntax errors.
  - find -L . -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l
  # Check for code style using the WordPress Coding Standards and for PHP cross-version compatibility.
  # @link https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards
  # @link https://github.com/wimg/PHPCompatibility
  # @link https://github.com/squizlabs/PHP_CodeSniffer
  - if [[ "$SNIFF" == "1" ]]; then $PHPCS_DIR/bin/phpcs -p -s -v . --standard=WordPress,PHPCompatibility --runtime-set testVersion 5.2-; fi

notifications:
  email: false