cmd/pkgserver: search endpoint

cmd/pkgserver/main.go

@@ -64,10 +64,22 @@ func main() {
 		}
 
 		var index packageIndex
+		index.search = make(searchCache)
 		if err := index.populate(cache, report); err != nil {
 			return err
 		}
-
+		ticker := time.NewTicker(1 * time.Minute)
+		go func() {
+			for {
+				select {
+				case <-ctx.Done():
+					ticker.Stop()
+					return
+				case <-ticker.C:
+					index.search.clean()
+				}
+			}
+		}()
 		var mux http.ServeMux
 		uiRoutes(&mux)
 		index.registerAPI(&mux)