[Develop] Add travis script

.travis.yml

@@ -0,0 +1,49 @@
+# 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.
+php:
+    # Aliased to a recent high PHP version
+    - 5.6
+    # Might as well test HHVM too
+    - hhvm
+    # Lowest currently possible in travis
+    - 5.2
+
+before_script:
+    # Install CodeSniffer for WordPress Coding Standards checks.
+    - git clone https://github.com/squizlabs/PHP_CodeSniffer.git phpcs
+    # Install WordPress Coding Standards.
+    - git clone -b master https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards.git wpcs
+    # Hop into CodeSniffer directory.
+    - cd phpcs
+    # Set install path for WordPress Coding Standards.
+    # @link https://github.com/squizlabs/PHP_CodeSniffer/blob/4237c2fc98cc838730b76ee9cee316f99286a2a7/CodeSniffer.php#L1941
+    - scripts/phpcs --config-set installed_paths ../wpcs
+    # Hop into project dir.
+    - cd $TRAVIS_BUILD_DIR
+    # After CodeSniffer install you should refresh your path.
+    - phpenv rehash
+
+# Run test script commands.
+# All commands must exit with code 0 on success. Anything else is considered failure.
+script:
+    # Search for PHP syntax errors. Ignore the phpcs and wpcs directories.
+    - find -L . -path "./*pcs" -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 http://pear.php.net/package/PHP_CodeSniffer/
+    # -p flag: Show progress of the run.
+    # -s flag: Show sniff codes in all reports.
+    # -v flag: Print verbose output.
+    # -n flag: Do not print warnings (shortcut for --warning-severity=0)
+    # --standard: Use WordPress as the standard.
+    # --extensions: Only sniff PHP files.
+    - $TRAVIS_BUILD_DIR/phpcs/scripts/phpcs -p -s -v -n . --standard=./ruleset.xml --extensions=php