From ad10c32a89b770c08e8c21f65d2ddc961e1e6d48 Mon Sep 17 00:00:00 2001
From: wangxiyuan <wangxiyuan@huawei.com>
Date: Fri, 20 Apr 2018 16:43:19 +0800
Subject: [PATCH] Fix the doc CI failure

CI job now uses pip >= 10.0.0 to install the package.

In pip >= 10.0.0, if the package name is missing, the command
"pip install -U" returns error, but in pip < 10.0.0 it
just logs warning.

So this patch make sure the package name exists first.

Change-Id: Id900640a7133f837ece8c6c0e7d2e4c17665a53d
---
 tools/tox_install.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/tox_install.sh b/tools/tox_install.sh
index e61b63a8..f3423d95 100755
--- a/tools/tox_install.sh
+++ b/tools/tox_install.sh
@@ -26,5 +26,7 @@ pip install -c"$localfile" openstack-requirements
 # install will be constrained and we need to unconstrain it.
 edit-constraints "$localfile" -- "$CLIENT_NAME"
 
-pip install -c"$localfile" -U "$@"
+if [[ -n "$@" ]]; then
+    pip install -c"$localfile" -U "$@"
+fi
 exit $?