IN-1729 - Introduce make sniff and sniff-fix to run code style check on self

* Imortant: not to fix 'not-allowed' files which are expected to be broken!

Author: vladimir-flyeralarm

Makefile

@@ -4,17 +4,16 @@ COMPOSER_BIN=$(PHP_BIN) composer.phar
 # ---------------------------------------------
 
 # make
-.DEFAULT_GOAL := install-dev
+.DEFAULT_GOAL := install
 
-# make test
-test:
-	$(PHP_BIN) tests/runner.php
-
-# make install
 install:
+	$(COMPOSER_BIN) install
 
-# ---------------------------------------------
-# functions
+sniff:
+	$(PHP_BIN) vendor/bin/phpcs -w -p -s --standard=ruleset.xml --ignore="tests/*not-allowed*" custom-standards/ tests/
 
-install-dev:
-	$(COMPOSER_BIN) install
+sniff-fix:
+	$(PHP_BIN) vendor/bin/phpcbf -w -p -s --standard=ruleset.xml --ignore="tests/*not-allowed*" custom-standards/ tests/
+
+test:
+	$(PHP_BIN) tests/runner.php

README.md

@@ -23,7 +23,13 @@ interpreted as described in [RFC 2119](http://www.ietf.org/rfc/rfc2119.txt).
 
 To prepare run command:
 ```bash
-make
+make install
+```
+
+To check code style compliance or to fix what can be autofixed run commands:
+```bash
+make sniff
+make sniff-fix
 ```
 
 To test ruleset run command: