[gnome-screenshot: 1/3] CI: Add initial job that builds a flatpak

[Cosimo Cecchi <cosimoc src gnome org>]

commit 194169554fa8a25a387c6013de69dc270683664e
Author: Jordan Petridis <jpetridis gnome org>
Date:   Sat Dec 8 19:08:56 2018 +0200

    CI: Add initial job that builds a flatpak

 .gitlab-ci.yml | 11 +++++++++++
 1 file changed, 11 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..5a92d12
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,11 @@
+include: 'https://gitlab.gnome.org/GNOME/citemplates/raw/master/flatpak/flatpak_ci_initiative.yml'
+
+flatpak:
+  extends: '.flatpak'
+  variables:
+    MANIFEST_PATH: 'org.gnome.Screenshot.json'
+    MESON_ARGS: ''
+    FLATPAK_MODULE: 'gnome-screenshot'
+    RUNTIME_REPO: 'https://sdk.gnome.org/gnome-nightly.flatpakrepo'
+    APP_ID: 'org.gnome.Screenshot'
+    BUNDLE: 'org.gnome.Screenshot.Devel.flatpak'