Update Travis configuration to new style, add phpcs configuration

.travis.yml

@@ -1,22 +1,33 @@
 language: php
 
-php:
-    - 5.6
-    - 7.0
-    - 7.1
-
 env:
-    - DB=MYSQL CORE_RELEASE=4
+  global:
+    - COMPOSER_ROOT_VERSION=4.0.x-dev
+
+matrix:
+  include:
+    - php: 5.6
+      env: DB=MYSQL PHPCS_TEST=1 PHPUNIT_TEST=1
+    - php: 7.0
+      env: DB=MYSQL PHPUNIT_TEST=1
+    - php: 7.1
+      env: DB=MYSQL PHPUNIT_COVERAGE_TEST=1
 
 before_script:
-    - git clone git://github.com/silverstripe/silverstripe-travis-support.git ~/travis-support
-    - php ~/travis-support/travis_setup.php --source `pwd` --target ~/builds/ss
-    - cd ~/builds/ss
+  # Init PHP
+  - phpenv rehash
+  - phpenv config-rm xdebug.ini
+  - echo 'memory_limit = 2048M' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+
+  # Install composer dependencies
+  - composer install --prefer-dist
+  - composer require --prefer-dist --no-update silverstripe/framework:4.0.x-dev silverstripe/cms:4.0.x-dev silverstripe/admin:1.0.x-dev
+  - composer update
 
 script:
-    - vendor/bin/phpunit --coverage-clover segment-field/coverage.clover segment-field/tests
+  - if [[ $PHPUNIT_TEST ]]; then vendor/bin/phpunit; fi
+  - if [[ $PHPUNIT_COVERAGE_TEST ]]; then phpdbg -qrr vendor/bin/phpunit --coverage-clover=coverage.xml; fi
+  - if [[ $PHPCS_TEST ]]; then vendor/bin/phpcs src/ tests/; fi
 
 after_success:
-    - cd segment-field
-    - wget https://scrutinizer-ci.com/ocular.phar
-    - php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+  - if [[ $PHPUNIT_COVERAGE_TEST ]]; then bash <(curl -s https://codecov.io/bash) -f coverage.xml; fi

_config.php

@@ -1,4 +1 @@
 <?php
-
-define('SEGMENT_FIELD_PATH', __DIR__);
-define('SEGMENT_FIELD_DIR', basename(__DIR__));

codecov.yml

@@ -0,0 +1 @@
+comment: false

composer.json

@@ -17,6 +17,7 @@
 	"require-dev": {
 		"phpunit/phpunit": "^5.7",
 		"mockery/mockery": "^0.9",
+        "squizlabs/php_codesniffer": "^3",
 		"silverstripe/reports": "^4.0@dev",
 		"silverstripe/siteconfig": "^4.0@dev"
 	},
@@ -27,12 +28,10 @@
 	},
 	"autoload": {
 		"psr-4": {
-			"SilverStripe\\Forms\\": "code"
+			"SilverStripe\\Forms\\": "code/",
+			"SilverStripe\\Forms\\Tests\\": "tests/"
 		}
 	},
-	"autoload-dev": {
-		"psr-4": {
-			"SilverStripe\\Forms\\Tests\\": "tests"
-		}
-	}
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }

phpcs.xml.dist

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ruleset name="SilverStripe">
+    <description>CodeSniffer ruleset for SilverStripe coding conventions.</description>
+
+    <!-- base rules are PSR-2 -->
+    <rule ref="PSR2" >
+        <!-- Current exclusions -->
+        <exclude name="PSR1.Methods.CamelCapsMethodName" />
+        <exclude name="PSR1.Files.SideEffects.FoundWithSymbols" />
+        <exclude name="PSR2.Classes.PropertyDeclaration" />
+        <exclude name="PSR2.ControlStructures.SwitchDeclaration" /> <!-- causes php notice while linting -->
+        <exclude name="PSR2.ControlStructures.SwitchDeclaration.WrongOpenercase" />
+        <exclude name="PSR2.ControlStructures.SwitchDeclaration.WrongOpenerdefault" />
+        <exclude name="PSR2.ControlStructures.SwitchDeclaration.TerminatingComment" />
+        <exclude name="PSR2.Methods.MethodDeclaration.Underscore" />
+        <exclude name="Squiz.Scope.MethodScope" />
+        <exclude name="Squiz.Classes.ValidClassName.NotCamelCaps" />
+        <exclude name="Generic.Files.LineLength.TooLong" />
+        <exclude name="PEAR.Functions.ValidDefaultValue.NotAtEnd" />
+    </rule>
+</ruleset>

phpunit.xml.dist

@@ -0,0 +1,13 @@
+<phpunit bootstrap="cms/tests/bootstrap.php" colors="true">
+    <testsuite name="Default">
+        <directory>tests/</directory>
+    </testsuite>
+    <filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src/</directory>
+            <exclude>
+                <directory suffix=".php">tests/</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>