add sending of additional information to disk during a panic, changed the name of the called routing method

cmd/serve.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
+	"runtime/debug"
 	"syscall"
 
 	"git.oblat.lv/alex/triggerssmith/api"
@@ -81,7 +82,20 @@ var serveCmd = &cobra.Command{
 		}
 		defer func() {
 			if r := recover(); r != nil {
-				slog.Error("Application panicked", slog.Any("error", r))
+				stack := debug.Stack()
+
+				f, err := os.OpenFile("panic.log", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
+				if err != nil {
+					slog.Error("Failed to open panic.log", slog.Any("error", err))
+				} else {
+					defer f.Close()
+					f.WriteString(fmt.Sprintf("Panic: %v\n", r))
+					f.Write(stack)
+					f.WriteString("\n\n")
+				}
+
+				slog.Error("Application panicked: the stack is flushed to disk", slog.Any("error", r))
+
 				os.Exit(-1)
 			}
 		}()
@@ -130,7 +144,7 @@ var serveCmd = &cobra.Command{
 
 		router := api.NewRouter(cfg)
 
-		srv.SetHandler(router.RouteHandler())
+		srv.SetHandler(router.MustRoute())
 		srv.Init()
 
 		var addr = net.JoinHostPort(cfg.Server.Addr, fmt.Sprintf("%d", cfg.Server.Port))