Improve Travis CI build Performance (#67)

chenzhang22 · web-flow · commit 912adde71f67 · 2021-08-17T13:01:19.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -18,3 +18,7 @@ addons:
 branches:
   only:
     - master
+
+cache:
+  directories:
+  - $HOME/.m2
