From 66af403f7d06b7f93d2e6e78f4e445c7a47e35cd Mon Sep 17 00:00:00 2001
From: Clint Wylie <cjwylie@gmail.com>
Date: Mon, 30 Jul 2018 13:36:49 -0700
Subject: [PATCH] skip travis on doc only changes (#6061)

* skip travis on doc only changes

* more selective ignoring of examples folder
---
 .travis.yml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 4ec30507b4f..0a37b3f9873 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,15 @@ jdk:
 cache:
   directories:
     - $HOME/.m2
-
+before_install:
+  - |
+    if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
+      TRAVIS_COMMIT_RANGE="FETCH_HEAD...$TRAVIS_BRANCH"
+    fi
+    git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.md$)|(^(docs|examples/(bin|conf|conf-quickstart|quickstart)|publications))/' || {
+      echo "Only docs were updated, stopping build process."
+      exit
+    }
 matrix:
   include:
       # strict compilation