1 files changed, 56 insertions, 0 deletions
diff --git a/cmd/doctor_convert.go b/cmd/doctor_convert.go
new file mode 100644
index 0000000000..2385f23e52
--- /dev/null
+++ b/cmd/doctor_convert.go
@@ -0,0 +1,56 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/urfave/cli/v2"
+)
+
+// cmdDoctorConvert represents the available convert sub-command.
+var cmdDoctorConvert = &cli.Command{
+	Name:        "convert",
+	Usage:       "Convert the database",
+	Description: "A command to convert an existing MySQL database from utf8 to utf8mb4 or MSSQL database from varchar to nvarchar",
+	Action:      runDoctorConvert,
+}
+
+func runDoctorConvert(ctx *cli.Context) error {
+	stdCtx, cancel := installSignals()
+	defer cancel()
+
+	if err := initDB(stdCtx); err != nil {
+		return err
+	}
+
+	log.Info("AppPath: %s", setting.AppPath)
+	log.Info("AppWorkPath: %s", setting.AppWorkPath)
+	log.Info("Custom path: %s", setting.CustomPath)
+	log.Info("Log path: %s", setting.Log.RootPath)
+	log.Info("Configuration file: %s", setting.CustomConf)
+
+	switch {
+	case setting.Database.Type.IsMySQL():
+		if err := db.ConvertUtf8ToUtf8mb4(); err != nil {
+			log.Fatal("Failed to convert database from utf8 to utf8mb4: %v", err)
+			return err
+		}
+		fmt.Println("Converted successfully, please confirm your database's character set is now utf8mb4")
+	case setting.Database.Type.IsMSSQL():
+		if err := db.ConvertVarcharToNVarchar(); err != nil {
+			log.Fatal("Failed to convert database from varchar to nvarchar: %v", err)
+			return err
+		}
+		fmt.Println("Converted successfully, please confirm your database's all columns character is NVARCHAR now")
+	default:
+		fmt.Println("This command can only be used with a MySQL or MSSQL database")
+	}
+
+	return nil
+}