Add command to convert mysql database from utf8 to utf8mb4 (#7144)
* add command to convert mysql database from utf8 to utf8mb4 * Update cmd/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update cmd/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update cmd/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update models/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update models/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update cmd/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com> * Update cmd/convert.go Co-Authored-By: John Olheiser <42128690+jolheiser@users.noreply.github.com>
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49
cmd/convert.go
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49
cmd/convert.go
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package cmd
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import (
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"fmt"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"github.com/urfave/cli"
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)
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// CmdConvert represents the available convert sub-command.
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var CmdConvert = cli.Command{
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Name: "convert",
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Usage: "Convert the database",
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Description: "A command to convert an existing MySQL database from utf8 to utf8mb4",
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Action: runConvert,
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}
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func runConvert(ctx *cli.Context) error {
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if err := initDB(); err != nil {
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return err
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}
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log.Trace("AppPath: %s", setting.AppPath)
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log.Trace("AppWorkPath: %s", setting.AppWorkPath)
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log.Trace("Custom path: %s", setting.CustomPath)
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log.Trace("Log path: %s", setting.LogRootPath)
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models.LoadConfigs()
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if models.DbCfg.Type != "mysql" {
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fmt.Println("This command can only be used with a MySQL database")
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return nil
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}
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if err := models.ConvertUtf8ToUtf8mb4(); err != nil {
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log.Fatal("Failed to convert database from utf8 to utf8mb4: %v", err)
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return err
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}
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fmt.Println("Converted successfully, please confirm your database's character set is now utf8mb4")
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return nil
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}
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1
main.go
1
main.go
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@ -67,6 +67,7 @@ arguments - which can alternatively be run by running the subcommand web.`
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cmd.CmdGenerate,
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cmd.CmdGenerate,
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cmd.CmdMigrate,
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cmd.CmdMigrate,
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cmd.CmdKeys,
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cmd.CmdKeys,
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cmd.CmdConvert,
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}
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}
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// Now adjust these commands to add our global configuration options
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// Now adjust these commands to add our global configuration options
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27
models/convert.go
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27
models/convert.go
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import "fmt"
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// ConvertUtf8ToUtf8mb4 converts database and tables from utf8 to utf8mb4 if it's mysql
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func ConvertUtf8ToUtf8mb4() error {
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_, err := x.Exec(fmt.Sprintf("ALTER DATABASE `%s` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci", DbCfg.Name))
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if err != nil {
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return err
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}
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tables, err := x.DBMetas()
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if err != nil {
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return err
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}
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for _, table := range tables {
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if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;", table.Name)); err != nil {
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return err
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}
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}
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return nil
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}
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