Use the Travis cache to persist the composer cache

stof · stof · commit 2754863575e8 · 2015-10-07T16:44:52.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,10 @@ language: php
 
 sudo: false
 
+cache:
+    directories:
+        - $HOME/.composer/cache/files
+
 php:
     - 5.3
     - 5.4
