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// Copyright 2019 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 migrations
import (
"os"
"path"
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
)
func deleteOrphanedAttachments(x *xorm.Engine) error {
type Attachment struct {
ID int64 `xorm:"pk autoincr"`
UUID string `xorm:"uuid UNIQUE"`
IssueID int64 `xorm:"INDEX"`
ReleaseID int64 `xorm:"INDEX"`
CommentID int64
}
// AttachmentLocalPath returns where attachment is stored in local file
// system based on given UUID.
AttachmentLocalPath := func(uuid string) string {
return path.Join(setting.AttachmentPath, uuid[0:1], uuid[1:2], uuid)
}
sess := x.NewSession()
defer sess.Close()
var limit = setting.Database.IterateBufferSize
if limit <= 0 {
limit = 50
}
for {
attachements := make([]Attachment, 0, limit)
if err := sess.Where("`issue_id` = 0 and (`release_id` = 0 or `release_id` not in (select `id` from `release`))").
Cols("id, uuid").Limit(limit).
Asc("id").
Find(&attachements); err != nil {
return err
}
if len(attachements) == 0 {
return nil
}
var ids = make([]int64, 0, limit)
for _, attachment := range attachements {
ids = append(ids, attachment.ID)
}
if _, err := sess.In("id", ids).Delete(new(Attachment)); err != nil {
return err
}
for _, attachment := range attachements {
if err := os.RemoveAll(AttachmentLocalPath(attachment.UUID)); err != nil {
return err
}
}
if len(attachements) < limit {
return nil
}
}
}
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