Add a function for sending desktop notifications

src/plugin/utils.cpp

@@ -391,3 +391,15 @@ Configuration load_config_for(const fs::path& yabridge_path) {
 
     return Configuration(*config_file, yabridge_path);
 }
+
+bool send_notification(const std::string& title, const std::string body) {
+    try {
+        return bp::system(bp::search_path("notify-send"), "--urgency=critical",
+                          "--expire-time=20000", "--app-name=yabridge", title,
+                          body) == EXIT_SUCCESS;
+    } catch (const boost::process::process_error&) {
+        // We will have printed the message to the terminal anyways, so if the
+        // user doesn't have libnotify installed we'll just fail silently
+        return false;
+    }
+}