Merge pull request #115 from php-school/faster-travis

Cache composer assets on travis

Author: AydinHassan

.travis.yml

@@ -1,12 +1,16 @@
 language: php
 
+cache:
+  directories:
+    - $HOME/.composer/cache/files
+
 php:
   - 7.1
   - 7.2
 
 install:
   - composer self-update
-  - composer install
+  - composer install --prefer-dist
 
 before_script:
   - mkdir -p build/logs