47 lines
1,022 B
Go
47 lines
1,022 B
Go
package migrations
|
|
|
|
import (
|
|
"errors"
|
|
"github.com/go-xorm/xorm"
|
|
)
|
|
|
|
type migration func(*xorm.Engine) error
|
|
|
|
// The version table. Should have only one row with id==1
|
|
type Version struct {
|
|
Id int64 `xorm:"pk"`
|
|
Version int64
|
|
}
|
|
|
|
// This is a sequence of migrations. Add new migrations to the bottom of the list.
|
|
// If you want to "retire" a migration, replace it with "expiredMigration"
|
|
var migrations = []migration{}
|
|
|
|
// Migrate database to current version
|
|
func Migrate(x *xorm.Engine) error {
|
|
x.Sync(new(Version))
|
|
|
|
currentVersion := &Version{Id: 1}
|
|
has, err := x.Get(currentVersion)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !has {
|
|
_, err = x.InsertOne(currentVersion)
|
|
}
|
|
|
|
v := currentVersion.Version
|
|
|
|
for i, migration := range migrations[v:] {
|
|
if err = migration(x); err != nil {
|
|
return err
|
|
}
|
|
currentVersion.Version = v + int64(i) + 1
|
|
x.Id(1).Update(currentVersion)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func expiredMigration(x *xorm.Engine) error {
|
|
return errors.New("You are migrating from a too old gogs version")
|
|
}
|