Add the ability to sync kube config files (#2567)

* Add the ability to sync kube config files

- Will update when the files changes

- add KUBECONFIG_SYNC label

- fix rebase and change to addObservableSource

- move UI to user settings

- support shallow folder watching

- add some unit tests for the diff-er

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* responding to review comments

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix tests and add try/catch

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* always sync c&p folder, remove bad rebase

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix preferences

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix settings saving and catalog view

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix unit tests

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix synced clusters not connectable

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* change to non-complete shallow watching

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix sizing

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Catch readStream errors

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* don't clear UserStore on non-existant preference field, fix unlinking not removing items from source

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* change label to file

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/main/index.ts

@@ -33,6 +33,7 @@ import { CatalogPusher } from "./catalog-pusher";
 import { catalogEntityRegistry } from "../common/catalog";
 import { HotbarStore } from "../common/hotbar-store";
 import { HelmRepoManager } from "./helm/helm-repo-manager";
+import { KubeconfigSyncManager } from "./catalog-sources";
 
 const workingDir = path.join(app.getPath("appData"), appName);
 
@@ -131,6 +132,9 @@ app.on("ready", async () => {
 
   const clusterManager = ClusterManager.getInstance();
 
+  // create kubeconfig sync manager
+  KubeconfigSyncManager.createInstance().startSync(clusterManager.port);
+
   // run proxy
   try {
     logger.info("🔌 Starting LensProxy");
@@ -237,6 +241,7 @@ app.on("will-quit", (event) => {
   logger.info("APP:QUIT");
   appEventBus.emit({name: "app", action: "close"});
   ClusterManager.getInstance(false)?.stop(); // close cluster connections
+  KubeconfigSyncManager.getInstance(false)?.stopSync();
 
   if (blockQuit) {
     event.preventDefault(); // prevent app's default shutdown (e.g. required for telemetry, etc.)