From a1c0ef220a1a0788e17a88724547e7013f4b83f2 Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Fri, 23 Sep 2016 00:50:36 -0400
Subject: [PATCH] Don't build on *.md change [skip ci]

---
 .travis.yml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index a770a0a082..b8a8afdcb0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,14 @@
 sudo: false
 language: node_js
-
+before_install:
+- |
+    if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
+      TRAVIS_COMMIT_RANGE="FETCH_HEAD...$TRAVIS_BRANCH"
+    fi
+    git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.md$)|(^(ast))/' || {
+      echo "Only docs were updated, stopping build process."
+      exit
+    }
 node_js:
   - "6"
   - "5"