Cache directories

Author: devinus

.travis.yml

@@ -1,18 +1,18 @@
-
 ---
-os:
-  - linux
-  - osx
-
 sudo: false
 
 language: elixir
 elixir:
   - 1.7.2
-  - 1.6.5
+  - 1.6.6
 otp_release:
   - 21.0
-  - 20.0
+  - 20.3
+
+cache:
+  directories:
+    - "$HOME/.hex/packages/hexpm"
+    - "$HOME/Library/Caches/Homebrew"
 
 addons:
   apt:
@@ -27,7 +27,3 @@ env:
   - EXECJS_RUNTIME=SpiderMonkey
   - EXECJS_RUNTIME=JavaScriptCore
   - EXECJS_RUNTIME=Rhino
-
-before_install:
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update; fi
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew install node spidermonkey rhino; fi