.travis.yml

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

# Use new container based environment
sudo: false

dist: trusty

cache:
  directories:
    # Cache directory for older Composer versions.
    - $HOME/.composer/cache/files
    # Cache directory for more recent Composer versions.
    - $HOME/.cache/composer/files

# 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 5.4.x version
        - php: '5.4'
        # aliased to a recent 5.6.x version
        - php: '5.6'
        # aliased to a recent 7.0.x version
        - php: '7.0'
        # aliased to a recent 7.3.x version
        - php: '7.3'
          env: SNIFF=1
        # 7.4.x/develop version
        - php: "7.4snapshot"

before_script:
  # Speed up build time by disabling Xdebug when its not needed.
  - phpenv config-rm xdebug.ini || echo 'No xdebug config.'
  # Install CodeSniffer and external standards for the CS checks.
  - if [[ "$SNIFF" == "1" ]]; then composer install --dev; 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 . -path ./vendor -prune -o -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l
  # WordPress Coding Standards.
  # @link https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards
  # @link https://github.com/squizlabs/PHP_CodeSniffer
  # All of the usual config flags are held in phpcs.xml
  - if [[ "$SNIFF" == "1" ]]; then $(pwd)/vendor/bin/phpcs --runtime-set ignore_warnings_on_exit 1; fi
  # Validate the composer.json file.
  # @link https://getcomposer.org/doc/03-cli.md#validate
  - if [[ $TRAVIS_PHP_VERSION != "5.2" ]]; then composer validate --no-check-all; fi

notifications:
  email: false