[libpanel/alatiera/nightly] ci: Add Flatpak tests and Nightly builds

[Jordan Petridis <jpetridis src gnome org>]

commit 429bb731415f638d5f06a848aaf956e1285e470e
Author: Jordan Petridis <jordan centricular com>
Date:   Wed Sep 28 00:39:17 2022 +0300

    ci: Add Flatpak tests and Nightly builds

 .gitlab-ci.yml | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 804c45d..b75d431 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,33 @@
+include: 'https://gitlab.gnome.org/GNOME/citemplates/raw/master/flatpak/flatpak_ci_initiative.yml'
+
 stages:
 - build
+- test
+- deploy
 - pages
 
+.vars-devel:
+  variables:
+    MANIFEST_PATH: "org.gnome.libpanel.example.json"
+    FLATPAK_MODULE: "libpanel"
+    APP_ID: "org.gnome.libpanel.example.json"
+    RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
+    BUNDLE: "libpanel-dev.flatpak"
+
+flatpak@x86_64:
+  extends: ['.flatpak@x86_64', '.vars-devel']
+
+flatpak@aarch64:
+  extends: ['.flatpak@aarch64', '.vars-devel']
+
+nightly@x86_64:
+  extends: '.publish_nightly'
+  needs: ['flatpak@x86_64']
+
+nightly@aarch64:
+  extends: '.publish_nightly'
+  needs: ['flatpak@aach64']
+
 fedora:
   stage: build
   image: fedora:latest