From ee9e504d6827bbb71b4faae0beb6d247d2c17b9f Mon Sep 17 00:00:00 2001
From: Oleg Kalachev <okalachev@gmail.com>
Date: Wed, 26 May 2021 23:56:41 +0300
Subject: [PATCH] CI: fix authentication in Docker

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 1fb63cb8..2ac36fcc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ jobs:
         directories:
         - imgcache
       before_script:
-        - if [ -z "$DOCKER_USERNAME" ]; then
+        - if [ ! -z "$DOCKER_USERNAME" ]; then
             echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin;
           fi
         - docker pull ${DOCKER}