build: Add .deps, apt cache to Travis cache

coditva · coditva · commit 42c1c67d28ce · 2018-10-17T01:10:44.000+05:30
diff --git a/.travis.yml b/.travis.yml
@@ -27,4 +27,6 @@ script:
   - make test
 
 cache:
-  - .deps
+  apt: true
+  directories:
+    - .deps
