Require PHP 7.1, add phpstan, doctrine cs standards, travis ci updates and scrutinizer ci

.gitignore

@@ -1,4 +1,5 @@
 vendor
-composer.lock
 data/public-suffix-list.txt
 phpunit.xml
+.phpcs-cache
+

.scrutinizer.yml

@@ -0,0 +1,29 @@
+build:
+    nodes:
+        analysis:
+            environment:
+                php:
+                    version: 7.1
+            cache:
+                disabled: false
+                directories:
+                    - ~/.composer/cache
+            project_setup:
+                override: true
+            tests:
+                override:
+                    - php-scrutinizer-run
+                    - phpcs-run
+    dependencies:
+        override:
+            - composer install --ignore-platform-reqs --no-interaction
+
+tools:
+    external_code_coverage:
+        timeout: 600
+
+build_failure_conditions:
+    - 'elements.rating(<= C).new.exists'                        # No new classes/methods with a rating of C or worse allowed
+    - 'issues.label("coding-style").new.exists'                 # No new coding style issues allowed
+    - 'issues.severity(>= MAJOR).new.exists'                    # New issues of major or higher severity
+    - 'project.metric_change("scrutinizer.test_coverage", < 0)' # Code Coverage decreased from previous inspection

.travis.yml

@@ -1,19 +1,56 @@
+dist: trusty
+sudo: false
 language: php
 
 php:
-  - 5.4
-  - 5.5
-  - 5.6
-  - 7.0
   - 7.1
   - 7.2
   - nightly
 
-matrix:
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+before_install:
+  - mv ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini{,.disabled} || echo "xdebug not available"
+  - travis_retry composer self-update
+  - travis_retry composer config --unset platform.php
+
+install:
+  - rm composer.lock
+  - travis_retry composer update --prefer-dist
+
+script:
+  - ./vendor/bin/phpunit
+
+jobs:
   allow_failures:
     - php: nightly
+
   include:
-    - php: 5.3
-      dist: precise
+    - stage: Test
+      env: DEPENDENCIES=low
+      install:
+        - rm composer.lock
+        - travis_retry composer update --prefer-dist --prefer-lowest
+
+    - stage: Test
+      env: COVERAGE
+      before_script:
+        - mv ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini{.disabled,}
+        - if [[ ! $(php -m | grep -si xdebug) ]]; then echo "xdebug required for coverage"; exit 1; fi
+      script:
+        - ./vendor/bin/phpunit --coverage-clover clover.xml
+      after_script:
+        - wget https://scrutinizer-ci.com/ocular.phar
+        - php ocular.phar code-coverage:upload --format=php-clover clover.xml
+
+    - stage: Code Quality
+      env: CODING_STANDARDS
+      install: travis_retry composer install --prefer-dist
+      script: ./vendor/bin/phpcs
 
-before_script: composer install
+    - stage: Code Quality
+      env: STATIC_ANALYSIS
+      install: travis_retry composer install --prefer-dist
+      script: vendor/bin/phpstan analyse -l 7 -c phpstan.neon src

README.markdown

@@ -120,7 +120,7 @@ echo $url->canonical; // com.jwage.about/
 #### Staying Up To Date
 
 The list of domains used to parse a URL into its component parts is updated from time to time.
-To ensure that you have the latest copy of the public suffix list, you can refresh 
+To ensure that you have the latest copy of the public suffix list, you can refresh
 the local copy of the list by running `./vendor/bin/pdp-psl data`
 
 ### Extract URLs

composer.json

@@ -14,11 +14,22 @@
     "autoload-dev": {
         "psr-4": {"Purl\\Test\\": "tests/Purl/Test"}
     },
+    "config": {
+        "sort-packages": true
+    },
     "require": {
-    	"php": ">=5.3.0",
+    	"php": "^7.1",
         "jeremykendall/php-domain-parser": "^1.3.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8|^5.5|^6.5|^7.0"
+        "doctrine/coding-standard": "^4.0",
+        "phpstan/phpstan": "^0.9.2",
+        "phpstan/phpstan-strict-rules": "^0.9",
+        "phpunit/phpunit": "^5.5|^6.5|^7.0"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
     }
 }