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gitea/models/db/install/db.go
wxiaoguang 042cac5fed
Improve install code to avoid low-level mistakes. (#17779)
* Improve install code to avoid low-level mistakes.

If a user tries to do a re-install in a Gitea database, they gets a warning and double check.
When Gitea runs, it never create empty app.ini automatically.

Also some small (related) refactoring:

* Refactor db.InitEngine related logic make it more clean (especially for the install code)
* Move some i18n strings out from setting.go to make the setting.go can be easily maintained.
* Show errors in CLI code if an incorrect app.ini is used.
* APP_DATA_PATH is created when installing, and checked when starting (no empty directory is created any more).
2021-12-01 15:50:01 +08:00

65 lines
1.6 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package install
import (
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
)
func getXORMEngine() *xorm.Engine {
return db.DefaultContext.(*db.Context).Engine().(*xorm.Engine)
}
// CheckDatabaseConnection checks the database connection
func CheckDatabaseConnection() error {
e := db.GetEngine(db.DefaultContext)
_, err := e.Exec("SELECT 1")
return err
}
// GetMigrationVersion gets the database migration version
func GetMigrationVersion() (int64, error) {
var installedDbVersion int64
x := getXORMEngine()
exist, err := x.IsTableExist("version")
if err != nil {
return 0, err
}
if !exist {
return 0, nil
}
_, err = x.Table("version").Cols("version").Get(&installedDbVersion)
if err != nil {
return 0, err
}
return installedDbVersion, nil
}
// HasPostInstallationUsers checks whether there are users after installation
func HasPostInstallationUsers() (bool, error) {
x := getXORMEngine()
exist, err := x.IsTableExist("user")
if err != nil {
return false, err
}
if !exist {
return false, nil
}
// if there are 2 or more users in database, we consider there are users created after installation
threshold := 2
if !setting.IsProd {
// to debug easily, with non-prod RUN_MODE, we only check the count to 1
threshold = 1
}
res, err := x.Table("user").Cols("id").Limit(threshold).Query()
if err != nil {
return false, err
}
return len(res) >= threshold, nil
}