Fix CI.

Deploy packages to PackageCloud from tags and master. Also skip deploys for pull-requests, api and cron events.

Author: Satbek

.travis.yml

@@ -11,6 +11,16 @@ cache:
 git:
   depth: 100500
 
+stages:
+  - test
+  - name: deploy
+    # Deploy packages to PackageCloud from tags and master
+    # see:
+    #   * https://github.com/tarantool/tarantool/issues/3745
+    #   * https://github.com/travis-ci/travis-ci/issues/7780#issuecomment-302389370
+    # Also skip deploys for pull-requests, api and cron events.
+    if: (type = push) AND (branch = master OR tag IS present) AND (env(PACKAGECLOUD_TOKEN) IS present)
+
 env:
   global:
     - PRODUCT=tarantool-http