[file-roller] Add CI job for flatpak

[Jan Tojnar <jtojnar src gnome org>]

commit cabd1d5485229c1faf011492561131121ceaa9a8
Author: Maximiliano Sandoval R <msandova protonmail com>
Date:   Fri Jul 23 13:32:13 2021 +0200

    Add CI job for flatpak
    
    Also pushes nightly builds to the gnome-nightly repo.

 ci/gitlab-ci.yaml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/ci/gitlab-ci.yaml b/ci/gitlab-ci.yaml
new file mode 100644
index 00000000..35d58944
--- /dev/null
+++ b/ci/gitlab-ci.yaml
@@ -0,0 +1,16 @@
+include: 'https://gitlab.gnome.org/GNOME/citemplates/raw/master/flatpak/flatpak_ci_initiative.yml'
+
+flatpak:
+    image: 'registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master'
+    extends: '.flatpak'
+    variables:
+        MANIFEST_PATH: "flatpak/org.gnome.FileRoller.json"
+        FLATPAK_MODULE: "file-roller"
+        APP_ID: "org.gnome.FileRoller"
+        RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
+        BUNDLE: "file-roller-dev.flatpak"
+
+nightly:
+  extends: '.publish_nightly'
+  dependencies: ['flatpak']
+  needs: ['flatpak']