examples: Add example flatpak definition

This doesn't do much, just builds tracker inside a sandbox, but does
handle limiting access to certain graphs, and lets you do your own
queries/endpoint within the sandbox. It does rely on matching
Tracker 3.x services and portal running in the host.

With everything in place, queries to the FS miner will go through
the portal, and be limited to the Tracker3 policies defined in the
.flatpak-info file. This is done through --add-policy on "flatpak
build finish" as per the manifest, but can also be influenced at
"flatpak run" time for further testing.

1 files changed, 32 insertions, 0 deletions

diff --git a/examples/flatpak/org.example.TrackerSandbox.json b/examples/flatpak/org.example.TrackerSandbox.json
new file mode 100644
index 000000000..72e023b13
--- /dev/null
+++ b/examples/flatpak/org.example.TrackerSandbox.json
@@ -0,0 +1,32 @@
+{
+    "app-id" : "org.example.TrackerSandbox",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "master",
+    "sdk" : "org.gnome.Sdk",
+    "command" : "/bin/sh",
+    "tags" : [
+        "nightly"
+    ],
+    "finish-args" : [
+	/* Define policy for the XDG Tracker portal */
+	"--add-policy=Tracker3.dbus:org.freedesktop.Tracker3.Miner.Files=tracker:Audio"
+    ],
+    "modules" : [
+        {
+            "name" : "tracker",
+	    "buildsystem" : "meson",
+            "config-opts": [
+                "-Ddocs=false",
+                "-Dman=false",
+                "-Dsystemd_user_services=false"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://gitlab.gnome.org/GNOME/tracker.git",
+                    "branch" : "wip/carlosg/portal"
+                }
+            ]
+        }
+    ]
+}