Match Flatpak app identities and repair dock reconnects

.github/workflows/ci.yml

@@ -52,6 +52,23 @@ jobs:
       - name: Tests
         run: cargo test --workspace
 
+      - name: GTK application identity
+        run: |
+          export XDG_RUNTIME_DIR=$(mktemp -d)
+          export XDG_CONFIG_HOME=$(mktemp -d)
+          export GDK_BACKEND=broadway BROADWAY_DISPLAY=:5
+          export PIPEWIRE_REMOTE=pipedeck-ui-no-server
+          gtk4-broadwayd :5 > /tmp/pipedeck-broadway.log 2>&1 &
+          broadway_pid=$!
+          trap 'kill "$broadway_pid" 2>/dev/null || true' EXIT
+          for attempt in $(seq 50); do
+            [ -S "$XDG_RUNTIME_DIR/broadway6.socket" ] && break
+            sleep 0.1
+          done
+          dbus-run-session cargo test -p pipedeck --bin pipedeck \
+            channel_dialog::tests::legacy_assignments_follow_late_identity \
+            -- --ignored --test-threads=1
+
       # What software centres read of Pipedeck, as they read it.
       - name: Software centre listing
         run: appstreamcli validate --no-net crates/pipedeck/data/dev._2c2t.Pipedeck.metainfo.xml

CHANGELOG.md

@@ -8,6 +8,12 @@ follow [Semantic Versioning](https://semver.org/).
 
 ### Fixed
 
+- Match Flatpak playback streams using client portal ids, retaining legacy
+  aliases for routing, focus matching, playing status and picker deduplication.
+- Preserve remaining application assignments when an alias or row is removed.
+- Explicitly retire loopbacks when dock devices disappear and restore them
+  on reconnection, including a replacement with the same name.
+
 - Pipedeck crashed when a device it played to or read from went away, a
   dock unplugged or a USB card waking up again, then a mix's output was
   switched off or a channel removed. The loopbacks that went with the

README.md

@@ -74,6 +74,8 @@ with its icon, under `~/.local/share` on its first start.
 virtual output, which any application can pick in its audio settings, or a
 capture device such as a microphone. You can attach applications to a
 channel: Pipedeck moves their audio there whenever they start playing.
+Flatpak applications are matched by their application id, so an app picked
+from the installed list follows the same channel when it starts playing.
 
 **Mixes** (columns) are where sound goes. Each mix is an input device named
 after it: OBS, Discord or a browser list it with the microphones. A mix can