[retro-gtk] ci: Add GitLab CI support

[Adrien Plazas <aplazas src gnome org>]

commit 3c76cd804daeb52bd17b3af42ac1b0c6aec42ece
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Apr 24 19:51:47 2018 +0200

    ci: Add GitLab CI support

 .gitlab-ci.yml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..015b332
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,15 @@
+
+.build_template: &distro_build
+  script:
+    - meson -Dmanpage=false _build
+    - ninja -C _build install
+
+stages:
+  - build-flatpak
+
+flatpak:master:
+  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
+  stage: build-flatpak
+  script:
+    - flatpak-builder unit-tests flatpak/org.gnome.Retro.UnitTests.json
+    - xvfb-run -a -s "-screen 0 1024x768x24" flatpak-builder --run unit-tests 
flatpak/org.gnome.Retro.UnitTests.json retro-unit-tests