unify all panic event to panic log file (#2250)

pkg/logger/panic.go

@@ -2,12 +2,15 @@ package logger
 
 import (
 	"fmt"
+	"io"
 	"os"
 	"path/filepath"
 	"runtime/debug"
 	"time"
 )
 
+var panicWriter io.WriteCloser
+
 func InitPanic(filePath string) (func(), error) {
 	if err := os.MkdirAll(filepath.Dir(filePath), 0o755); err != nil {
 		return nil, fmt.Errorf("failed to create log directory: %w", err)
@@ -16,21 +19,36 @@ func InitPanic(filePath string) (func(), error) {
 	if writer == nil {
 		return nil, fmt.Errorf("failed to create log file: %s", filePath)
 	}
+	if panicWriter != nil {
+		_ = panicWriter.Close()
+	}
+	panicWriter = writer
 	return func() {
-		defer writer.Close()
+		defer func() {
+			writer.Close()
+			panicWriter = nil
+		}()
 		if err := recover(); err != nil {
-			now := time.Now().Format("2006-01-02 15:04:05")
-			stack := debug.Stack()
-			logMsg := "\n\n====================\n[" + now + "] PANIC OCCURRED: " + fmt.Sprintf(
-				"%v",
-				err,
-			) + "\n" + string(
-				stack,
-			)
-
-			writer.Write([]byte(logMsg))
+			RecoverPanicNoExit(err)
 
 			os.Exit(1)
 		}
 	}, nil
 }
+
+func RecoverPanicNoExit(err any) {
+	if panicWriter == nil {
+		Errorf("panicWriter is nil, should not happen")
+		return
+	}
+	now := time.Now().Format("2006-01-02 15:04:05")
+	stack := debug.Stack()
+	logMsg := "\n\n====================\n[" + now + "] PANIC OCCURRED: " + fmt.Sprintf(
+		"%v",
+		err,
+	) + "\n" + string(
+		stack,
+	)
+
+	panicWriter.Write([]byte(logMsg))
+}