Install PHPStan PHAR to tools directory

[MAILPOET-2405]

.circleci/config.yml

@@ -73,10 +73,10 @@ jobs:
         name: "Set up environment"
         command: |
           source ./.circleci/setup.bash && setup php7
-          wget https://github.com/phpstan/phpstan/releases/download/0.11.5/phpstan.phar
     - run:
         name: "Static analysis"
         command: ./do qa:phpstan
+
   php5_unit:
     resource_class: small
     working_directory: /home/circleci/mailpoet

.gitignore

@@ -2,7 +2,6 @@
 TODO
 composer.phar
 php-scoper.phar
-phpstan.phar
 /vendor
 /vendor-prefixed
 /vendor_backup

RoboFile.php

@@ -429,7 +429,7 @@ class RoboFile extends \Robo\Tasks {
       ->taskExec(
         'WP_ROOT="' . getenv('WP_ROOT') . '" ' .
         'php -d memory_limit=2G ' .
-        "$dir/phpstan.phar analyse " .
+        "$dir/tools/vendor/phpstan.phar analyse " .
         "--configuration $dir/tasks/phpstan/phpstan.neon " .
         '--level 5 ' .
         "$dir/lib"

tasks/phpstan/phpstan.neon

@@ -1,5 +1,7 @@
 parameters:
   tmpDir: ../../temp/phpstan
+  autoload_files:
+    - %rootDir%/../../../vendor/autoload.php
   bootstrap: bootstrap.php
   ignoreErrors:
     - '#Function members_register_.+ not found#'

tools/install.php

@@ -1,6 +1,7 @@
 <?php
 
 $tools = [
+  'https://github.com/phpstan/phpstan/releases/download/0.11.5/phpstan.phar' => 'phpstan.phar',
   'https://github.com/nette/tracy/releases/download/v2.6.4/tracy.phar' => 'tracy.phar',
 ];