perf: Speed ​​of database initialization (#7694)

* perf: 优化非sqlite3数据库时初始化慢的问题

* refactor

internal/bootstrap/data/setting.go

@@ -3,6 +3,7 @@ package data
 import (
 	"github.com/alist-org/alist/v3/cmd/flags"
 	"github.com/alist-org/alist/v3/internal/conf"
+	"github.com/alist-org/alist/v3/internal/db"
 	"github.com/alist-org/alist/v3/internal/model"
 	"github.com/alist-org/alist/v3/internal/offline_download/tool"
 	"github.com/alist-org/alist/v3/internal/op"
@@ -21,17 +22,19 @@ func initSettings() {
 	if err != nil {
 		utils.Log.Fatalf("failed get settings: %+v", err)
 	}
-	for i := range settings {
-		if !isActive(settings[i].Key) && settings[i].Flag != model.DEPRECATED {
-			settings[i].Flag = model.DEPRECATED
-			err = op.SaveSettingItem(&settings[i])
+	settingMap := map[string]*model.SettingItem{}
+	for _, v := range settings {
+		if !isActive(v.Key) && v.Flag != model.DEPRECATED {
+			v.Flag = model.DEPRECATED
+			err = op.SaveSettingItem(&v)
 			if err != nil {
 				utils.Log.Fatalf("failed save setting: %+v", err)
 			}
 		}
+		settingMap[v.Key] = &v
 	}
-
 	// create or save setting
+	save := false
 	for i := range initialSettingItems {
 		item := &initialSettingItems[i]
 		item.Index = uint(i)
@@ -39,26 +42,33 @@ func initSettings() {
 			item.PreDefault = item.Value
 		}
 		// err
-		stored, err := op.GetSettingItemByKey(item.Key)
+		stored, ok := settingMap[item.Key]
+		if !ok {
+			stored, err = op.GetSettingItemByKey(item.Key)
 			if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
 				utils.Log.Fatalf("failed get setting: %+v", err)
 				continue
 			}
-		// save
+		}
 		if stored != nil && item.Key != conf.VERSION && stored.Value != item.PreDefault {
 			item.Value = stored.Value
 		}
-		if stored == nil || *item != *stored {
-			err = op.SaveSettingItem(item)
-			if err != nil {
-				utils.Log.Fatalf("failed save setting: %+v", err)
-			}
-		} else {
-			// Not save so needs to execute hook
 		_, err = op.HandleSettingItemHook(item)
 		if err != nil {
 			utils.Log.Errorf("failed to execute hook on %s: %+v", item.Key, err)
+			continue
 		}
+		// save
+		if stored == nil || *item != *stored {
+			save = true
+		}
+	}
+	if save {
+		err = db.SaveSettingItems(initialSettingItems)
+		if err != nil {
+			utils.Log.Fatalf("failed save setting: %+v", err)
+		} else {
+			op.SettingCacheUpdate()
 		}
 	}
 }

internal/bootstrap/db.go

@@ -56,20 +56,20 @@ func InitDB() {
 			}
 		case "mysql":
 			{
+				dsn := database.DSN
+				if dsn == "" {
 					//[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
-				dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&tls=%s",
+					dsn = fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&tls=%s",
 						database.User, database.Password, database.Host, database.Port, database.Name, database.SSLMode)
-				if database.DSN != "" {
-					dsn = database.DSN
 				}
 				dB, err = gorm.Open(mysql.Open(dsn), gormConfig)
 			}
 		case "postgres":
 			{
-				dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=%s TimeZone=Asia/Shanghai",
+				dsn := database.DSN
+				if dsn == "" {
+					dsn = fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=%s TimeZone=Asia/Shanghai",
 						database.Host, database.User, database.Password, database.Name, database.Port, database.SSLMode)
-				if database.DSN != "" {
-					dsn = database.DSN
 				}
 				dB, err = gorm.Open(postgres.Open(dsn), gormConfig)
 			}

internal/op/setting.go

@@ -26,7 +26,7 @@ var settingGroupCacheF = func(key string, item []model.SettingItem) {
 	settingGroupCache.Set(key, item, cache.WithEx[[]model.SettingItem](time.Hour))
 }
 
-func settingCacheUpdate() {
+func SettingCacheUpdate() {
 	settingCache.Clear()
 	settingGroupCache.Clear()
 }
@@ -167,7 +167,7 @@ func SaveSettingItems(items []model.SettingItem) error {
 		}
 	}
 	if len(errs) < len(items)-len(noHookItems)+1 {
-		settingCacheUpdate()
+		SettingCacheUpdate()
 	}
 	return utils.MergeErrors(errs...)
 }
@@ -181,7 +181,7 @@ func SaveSettingItem(item *model.SettingItem) (err error) {
 	if err = db.SaveSettingItem(item); err != nil {
 		return err
 	}
-	settingCacheUpdate()
+	SettingCacheUpdate()
 	return nil
 }
 
@@ -193,6 +193,6 @@ func DeleteSettingItemByKey(key string) error {
 	if !old.IsDeprecated() {
 		return errors.Errorf("setting [%s] is not deprecated", key)
 	}
-	settingCacheUpdate()
+	SettingCacheUpdate()
 	return db.DeleteSettingItemByKey(key)
 }

server/common/base.go

@@ -12,16 +12,16 @@ import (
 func GetApiUrl(r *http.Request) string {
 	api := conf.Conf.SiteURL
 	if strings.HasPrefix(api, "http") {
-		return api
+		return strings.TrimSuffix(api, "/")
 	}
 	if r != nil {
 		protocol := "http"
 		if r.TLS != nil || r.Header.Get("X-Forwarded-Proto") == "https" {
 			protocol = "https"
 		}
-		host := r.Host
-		if r.Header.Get("X-Forwarded-Host") != "" {
-			host = r.Header.Get("X-Forwarded-Host")
+		host := r.Header.Get("X-Forwarded-Host")
+		if host == "" {
+			host = r.Host
 		}
 		api = fmt.Sprintf("%s://%s", protocol, stdpath.Join(host, api))
 	}