From d7533e899f3d89bd7269a36618a3d6606cc399db Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Thu, 22 Sep 2016 17:59:47 -0400
Subject: [PATCH] Internal: cancel build with only .md changes (#4547)

---
 .travis.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 73b20a1c8d..4ca458d5ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,15 @@ language: node_js
 cache:
   directories:
   - node_modules
+before_install:
+- |
+    if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
+      TRAVIS_COMMIT_RANGE="FETCH_HEAD...$TRAVIS_BRANCH"
+    fi
+    git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.md$)|(^(doc))/' || {
+      echo "Only docs were updated, stopping build process."
+      exit
+    }
 node_js:
 - '6'
 - '5'