Move xorm logger bridge from log to models so that log module could be a standalone package (#6944)

* move xorm logger bridge from log to models so that log module could be a standalone package

* fix tests

* save logger on xorm log bridge

models/models.go

@@ -15,7 +15,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 
 	// Needed for the MySQL driver
@@ -261,7 +260,7 @@ func NewTestEngine(x *xorm.Engine) (err error) {
 	}
 
 	x.SetMapper(core.GonicMapper{})
-	x.SetLogger(log.XORMLogger)
+	x.SetLogger(NewXORMLogger(!setting.ProdMode))
 	x.ShowSQL(!setting.ProdMode)
 	return x.StoreEngine("InnoDB").Sync2(tables...)
 }
@@ -276,7 +275,7 @@ func SetEngine() (err error) {
 	x.SetMapper(core.GonicMapper{})
 	// WARNING: for serv command, MUST remove the output to os.stdout,
 	// so use log file to instead print to stdout.
-	x.SetLogger(log.XORMLogger)
+	x.SetLogger(NewXORMLogger(setting.LogSQL))
 	x.ShowSQL(setting.LogSQL)
 	return nil
 }