Merge pull request #31 from localheinz/feature/make-rule-syntax

Enhancement: Leverage Makefile rule syntax

Makefile

@@ -1,20 +1,20 @@
-.PHONY: composer coverage cs infection it test
+.PHONY: coverage cs infection it test
 
 it: cs test
 
-composer:
-	composer self-update
-	composer validate
-	composer install
-
-coverage: composer
+coverage: vendor
 	vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-text
 
-cs: composer
+cs: vendor
 	vendor/bin/php-cs-fixer fix --config=.php_cs --diff --verbose
 
 infection:
 	vendor/bin/infection --min-covered-msi=80 --min-msi=80
 
-test: composer
+test: vendor
 	vendor/bin/phpunit --configuration=test/Unit/phpunit.xml
+
+vendor: composer.json composer.lock
+	composer self-update
+	composer validate
+	composer install