From 7af1dfa0227ba39c0b2844fbaf3597f87de65dc2 Mon Sep 17 00:00:00 2001
From: Shawn Allen <shawn.allen@github.com>
Date: Thu, 20 Jul 2017 17:34:17 -0700
Subject: [PATCH] fix branch variable setting

---
 script/cibuild | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/script/cibuild b/script/cibuild
index 6ec6f4ec..bdb64a9b 100755
--- a/script/cibuild
+++ b/script/cibuild
@@ -6,7 +6,11 @@ set -e
 args=$@
 
 event="$TRAVIS_EVENT_TYPE"
-branch="${TRAVIS_PULL_REQUEST_BRANCH=${TRAVIS_BRANCH}}"
+branch="$TRAVIS_BRANCH"
+# use $TRAVIS_PULL_REQUEST_BRANCH if this is a PR
+if [[ "$event" = "pull_request" ]]; then
+  branch="$TRAVIS_PULL_REQUEST_BRANCH"
+fi
 
 echo "==== CI env ===="
 echo "event:  $event"