From a8b54bda6e1ef61752fb1acf27caa2d08e90dcbb Mon Sep 17 00:00:00 2001
From: Tianon Gravi <admwiggin@gmail.com>
Date: Fri, 16 Aug 2019 15:53:33 -0700
Subject: [PATCH] Remove use of "TRAVIS_COMMIT_RANGE" variable

---
 .travis/check-pr-no-readme.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis/check-pr-no-readme.sh b/.travis/check-pr-no-readme.sh
index 645e6e2c2..010854117 100755
--- a/.travis/check-pr-no-readme.sh
+++ b/.travis/check-pr-no-readme.sh
@@ -4,7 +4,8 @@ set -Eeuo pipefail
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")/.."
 
 if [ "$TRAVIS_PULL_REQUEST" != 'false' ]; then
-	if [ "$(git diff --numstat "$TRAVIS_COMMIT_RANGE" -- '*/README.md')" ]; then
+	git fetch -q https://github.com/docker-library/docs.git master
+	if [ -n "$(git diff --numstat FETCH_HEAD...HEAD -- '*/README.md')" ]; then
 		echo >&2 'Error: at least one repo README.md has changed'
 		echo >&2 'These files are autogenerated, so it is unnecessary to modify them'
 		echo >&2 'Please update content.md and docker-library-bot will take care of README.md'