From cebbd9fb7b306f32b47146a2be0f67fecd7e61a1 Mon Sep 17 00:00:00 2001
From: Steven Dake <stdake@cisco.com>
Date: Mon, 23 Feb 2015 12:45:20 -0700
Subject: [PATCH] Quote array index with -n so -n works properly

For some reason -n doesn't work with arrays, probably becuase
the array has an entry by the array's indexed value is empty.

By quoting it we get it as one unit, which behaves as expected.

Change-Id: Ic3243d13d3f8fc9978c460f816e33ad348302d8e
---
 tools/build-all-docker-images | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build-all-docker-images b/tools/build-all-docker-images
index 0f2ba03cb6..5f016f72c4 100755
--- a/tools/build-all-docker-images
+++ b/tools/build-all-docker-images
@@ -80,7 +80,7 @@ function init_image {
 
 function process_image {
     local image=$1
-    if [ -n ${dependency[$image]} ]; then
+    if [ -n "${dependency[$image]}" ]; then
         process_image ${dependency[$image]}
     fi
     if requires_build $image; then