ENH removed large artefact and try to use cache again #2

.gitlab-ci.yml

@@ -15,10 +15,13 @@ stages:
 
 env_install:
     stage: env
-    artifacts:
+#    artifacts:
+#        paths:
+#            - ./
+#        expire_in: 1 day
+    cache:
         paths:
-            - ./
-        expire_in: 1 day
+            - libs/
 
     before_script:
         - 'yum -y install gcc gcc-c++ autoconf automake libtool git make cmake wget'