Improve Travis CI build Performance

chenzhang22 · chenzhang22 · commit 62e27bf7bb58 · 2021-08-16T21:06:53.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,4 +13,7 @@ install: /bin/true
 
 script:
   - mvn clean
-  - mvn install
+  - mvn install
+cache:
+  directories:
+  - $HOME/.m2
