ci: Add manual job to test Flatpak build against stable runtime

.gitlab-ci/build.yml

@@ -23,3 +23,27 @@ build@aarch64:
   extends:
     - .flatpak@aarch64
   stage: build
+
+# Test builds with the stable runtime to make sure that the Flatpak will build on Flathub.
+# Should be run manually before tagging a new release.
+.build-stable:
+  image: 'quay.io/gnome_infrastructure/gnome-runtime-images:gnome-46'
+  variables:
+    MANIFEST_PATH: ".gitlab-ci/org.gnome.Fractal.CiTest.json"
+    APP_ID: "org.gnome.Fractal.CiTest"
+    RUNTIME_REPO: "https://flathub.org/repo/flathub.flatpakrepo"
+    BUNDLE: "${APP_ID}.flatpak"
+
+build-stable@x86_64:
+  extends:
+    - .flatpak@x86_64
+    - .build-stable
+  stage: build
+  when: manual
+
+build-stable@aarch64:
+  extends:
+    - .flatpak@aarch64
+    - .build-stable
+  stage: build
+  when: manual

.gitlab-ci/org.gnome.Fractal.CiTest.json

@@ -0,0 +1,117 @@
+{
+    "id": "org.gnome.Fractal.CiTest",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "46",
+    "sdk": "org.gnome.Sdk",
+    "sdk-extensions": [
+        "org.freedesktop.Sdk.Extension.rust-stable",
+        "org.freedesktop.Sdk.Extension.llvm16"
+    ],
+    "command": "fractal",
+    "finish-args": [
+        "--socket=fallback-x11",
+        "--socket=wayland",
+        "--socket=pulseaudio",
+        "--share=network",
+        "--share=ipc",
+        "--device=dri"
+    ],
+    "build-options": {
+        "append-ld-library-path": "/usr/lib/sdk/llvm16/lib",
+        "append-path": "/usr/lib/sdk/llvm16/bin:/usr/lib/sdk/rust-stable/bin",
+        "build-args": [
+            "--share=network"
+        ],
+        "test-args": [
+            "--socket=x11",
+            "--share=network"
+        ]
+    },
+    "modules": [
+        {
+            "name": "abseil",
+            "buildsystem": "cmake-ninja",
+            "config-opts": [
+              "-DCMAKE_CXX_STANDARD=17",
+              "-DCMAKE_POSITION_INDEPENDENT_CODE=ON",
+              "-DBUILD_SHARED_LIBS=ON",
+              "-DABSL_PROPAGATE_CXX_STD=ON"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/abseil/abseil-cpp.git",
+                    "tag": "20240116.2",
+                    "commit": "d7aaad83b488fd62bd51c81ecf16cd938532cc0a"
+                }
+            ]
+        },
+        {
+            "name": "protobuf",
+            "buildsystem": "cmake-ninja",
+            "config-opts": [
+                "-DCMAKE_POSITION_INDEPENDENT_CODE=ON",
+                "-Dprotobuf_ABSL_PROVIDER=package",
+                "-Dprotobuf_BUILD_SHARED_LIBS=ON",
+                "-Dprotobuf_BUILD_TESTS=OFF"
+            ],
+            "cleanup": [
+                "/bin/protoc*",
+                "/lib/libprotoc*",
+                "/lib/libprotobuf-lite*"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/protocolbuffers/protobuf.git",
+                    "tag": "v25.3",
+                    "commit": "4a2aef570deb2bfb8927426558701e8bfc26f2a4"
+                }
+            ]
+        },
+        {
+            "name": "protobuf-c",
+            "buildsystem": "autotools",
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/protobuf-c/protobuf-c.git",
+                    "tag": "v1.5.0",
+                    "commit": "8c201f6e47a53feaab773922a743091eb6c8972a"
+                }
+            ]
+        },
+        {
+            "name": "libshumate",
+            "buildsystem": "meson",
+            "config-opts": [
+                "-Dgir=false",
+                "-Dvapi=false",
+                "-Dgtk_doc=false",
+                "-Dvector_renderer=true"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/libshumate.git",
+                    "tag": "1.2.2",
+                    "commit": "fab290f36bb7043fe6107308ff4f91c80492aa11"
+                }
+            ]
+        },
+        {
+            "name": "fractal",
+            "buildsystem": "meson",
+            "run-tests": true,
+            "config-opts": [
+                "-Dprofile=default"
+            ],
+            "sources": [
+                {
+                    "type": "dir",
+                    "path": "../"
+                }
+            ]
+        }
+    ]
+}