From 03af5f1806d6a9d7052a8836d07b2135277bc2d5 Mon Sep 17 00:00:00 2001
From: Wu Sheng <wu.sheng@foxmail.com>
Date: Mon, 20 Aug 2018 22:05:31 +0800
Subject: [PATCH] Support m2 cache in CI.

---
 .travis.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 217dc70c2..37b7548af 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,9 @@
 sudo: required
 
+cache:
+  directories:
+    - "$HOME/.m2"
+
 language: java
 before_install:
   - mkdir ci-dependencies