Implement catalog startup diagnostics (T-616)

app-modern/cmd/softbox/catalog_bootstrap_test.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"context"
+	"testing"
+
+	"softbox.local/core/application"
+)
+
+func TestStartCatalogBootstrapPublishesThroughRuntime(t *testing.T) {
+	runtime := application.NewRuntime(1)
+	done := startCatalogBootstrap(context.Background(), runtime, application.CatalogSnapshotLoaderFunc(func(context.Context) (application.CatalogSnapshot, error) {
+		return application.CatalogSnapshot{Source: application.CatalogSourceRemote, Items: []application.CatalogListItem{{ID: "tool", Name: "Tool", Version: "1.0.0"}}}, nil
+	}))
+	if err := <-done; err != nil {
+		t.Fatalf("bootstrap error = %v", err)
+	}
+	event := <-runtime.Events()
+	if event.Type != application.EventCatalogRefreshed {
+		t.Fatalf("event type = %q", event.Type)
+	}
+}

app-modern/cmd/softbox/main.go

@@ -35,6 +35,10 @@ func main() {
 }
 
 func run() error {
+	return runWithCatalogLoader(application.UnconfiguredCatalogLoader{})
+}
+
+func runWithCatalogLoader(loader application.CatalogSnapshotLoader) error {
 	platform := windows.New()
 	window := new(app.Window)
 	window.Option(
@@ -59,10 +63,18 @@ func run() error {
 			window.Invalidate,
 		)
 	}()
+	catalogDone := startCatalogBootstrap(eventContext, runtime, loader)
 	defer func() {
 		cancelEvents()
 		runtime.Close()
 		relay.Close()
+		if bootstrapErr := <-catalogDone; bootstrapErr != nil &&
+			!errors.Is(bootstrapErr, context.Canceled) &&
+			!errors.Is(bootstrapErr, application.ErrCatalogSourceUnconfigured) &&
+			!errors.Is(bootstrapErr, application.ErrRuntimeClosed) &&
+			!errors.Is(bootstrapErr, application.ErrEventRelayClosed) {
+			log.Printf("%s catalog bootstrap failed", core.ProductName)
+		}
 		if pumpErr := <-pumpDone; pumpErr != nil &&
 			!errors.Is(pumpErr, context.Canceled) &&
 			!errors.Is(pumpErr, application.ErrEventRelayClosed) {
@@ -85,3 +97,15 @@ func run() error {
 		}
 	}
 }
+
+func startCatalogBootstrap(
+	ctx context.Context,
+	runtime *application.Runtime,
+	loader application.CatalogSnapshotLoader,
+) <-chan error {
+	done := make(chan error, 1)
+	go func() {
+		done <- application.NewCatalogBootstrap(loader, runtime).Run(ctx)
+	}()
+	return done
+}