Add Gitlab CI support

.gitlab-ci.yml

@@ -0,0 +1,34 @@
+# Night Theme Switcher Gnome Shell extension
+#
+# Copyright (C) 2020 Romain Vigier
+#
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http s ://www.gnu.org/licenses/>.
+
+
+image: fedora:latest
+
+stages:
+  - build
+
+before_script:
+  - dnf update -y
+
+build:
+  stage: build
+  script:
+    - make build
+  artifacts:
+    name: "$CI_COMMIT_REF_NAME"
+    expose_as: "extension"
+    paths:
+      - build/*.zip