[gedit/gnome-3-30] ci: Add Snap build

[Jeremy Bicha <jbicha src gnome org>]

commit 835995e49b6ac2d20753fe0d456637f97beee58e
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Thu Jan 31 21:09:12 2019 -0500

    ci: Add Snap build

 .gitlab-ci.yml | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 000000000..5e9232083
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,9 @@
+build:snap:
+  stage: build
+  image: ubuntudesktop/gnome-3-28-1804
+  script: snapcraft
+  allow_failure: true
+  artifacts:
+    paths: ['./*.snap']
+    expire_in: 3 days
+