From 74277db9aaadeb7cde1ded0b097bbaace193c1cd Mon Sep 17 00:00:00 2001
From: eeldill <elod.illes@ericsson.com>
Date: Fri, 27 Apr 2018 19:00:17 +0200
Subject: [PATCH] Fix sphinx-docs job

build-openstack-sphinx-docs jobs fail on all branches due to the new
pip version 10 introduces some previously Warning as Error: in case of
calling "pip install" without any package name, the command fails.
tox_install.sh is called during docs job without any package passed to pip.

Change-Id: I400d4acf93ab634683cd9c4b05db7c79a51810be
---
 tools/tox_install.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/tox_install.sh b/tools/tox_install.sh
index e61b63a8..05c58b33 100755
--- a/tools/tox_install.sh
+++ b/tools/tox_install.sh
@@ -26,5 +26,10 @@ pip install -c"$localfile" openstack-requirements
 # install will be constrained and we need to unconstrain it.
 edit-constraints "$localfile" -- "$CLIENT_NAME"
 
+if [ -z "$@" ]; then
+    echo "No packages to be installed."
+    exit 0
+fi
+
 pip install -c"$localfile" -U "$@"
 exit $?