Update DB WAL before backup

database/db.go

@@ -110,3 +110,12 @@ func IsSQLiteDB(file io.Reader) (bool, error) {
 	}
 	return bytes.Equal(buf, signature), nil
 }
+
+func Checkpoint() error {
+	// Update WAL
+	err := db.Exec("PRAGMA wal_checkpoint;").Error
+	if err != nil {
+		return err
+	}
+	return nil
+}

web/service/server.go

@@ -418,6 +418,11 @@ func (s *ServerService) GetConfigJson() (interface{}, error) {
 }
 
 func (s *ServerService) GetDb() ([]byte, error) {
+	// Update by manually trigger a checkpoint operation
+	err := database.Checkpoint()
+	if err != nil {
+		return nil, err
+	}
 	// Open the file for reading
 	file, err := os.Open(config.GetDBPath())
 	if err != nil {

web/service/tgbot.go

@@ -9,6 +9,7 @@ import (
 	"strings"
 	"time"
 	"x-ui/config"
+	"x-ui/database"
 	"x-ui/database/model"
 	"x-ui/logger"
 	"x-ui/util/common"
@@ -697,12 +698,18 @@ func (t *Tgbot) sendBackup(chatId int64) {
 		return
 	}
 
+	// Update by manually trigger a checkpoint operation
+	err := database.Checkpoint()
+	if err != nil {
+		logger.Warning("Error in trigger a checkpoint operation: ", err)
+	}
+
 	output := t.I18nBot("tgbot.messages.backupTime", "Time=="+time.Now().Format("2006-01-02 15:04:05"))
 	t.SendMsgToTgbot(chatId, output)
 
 	file := tgbotapi.FilePath(config.GetDBPath())
 	msg := tgbotapi.NewDocument(chatId, file)
-	_, err := bot.Send(msg)
+	_, err = bot.Send(msg)
 	if err != nil {
 		logger.Warning("Error in uploading backup: ", err)
 	}