mirror of
https://github.com/go-gitea/gitea
synced 2024-08-20 22:31:08 +02:00
211 lines
6.1 KiB
Go
211 lines
6.1 KiB
Go
// Copyright 2018 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 (
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
|
|
"github.com/go-xorm/xorm"
|
|
)
|
|
|
|
var topicPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`)
|
|
|
|
func validateTopic(topic string) bool {
|
|
return len(topic) <= 35 && topicPattern.MatchString(topic)
|
|
}
|
|
|
|
func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) {
|
|
log.Info("This migration could take up to minutes, please be patient.")
|
|
|
|
type Topic struct {
|
|
ID int64
|
|
Name string `xorm:"UNIQUE VARCHAR(25)"`
|
|
RepoCount int
|
|
CreatedUnix int64 `xorm:"INDEX created"`
|
|
UpdatedUnix int64 `xorm:"INDEX updated"`
|
|
}
|
|
|
|
type RepoTopic struct {
|
|
RepoID int64 `xorm:"UNIQUE(s)"`
|
|
TopicID int64 `xorm:"UNIQUE(s)"`
|
|
}
|
|
|
|
type Repository struct {
|
|
ID int64 `xorm:"pk autoincr"`
|
|
Topics []string `xorm:"TEXT JSON"`
|
|
}
|
|
|
|
if err := x.Sync2(new(Topic)); err != nil {
|
|
return fmt.Errorf("Sync2: %v", err)
|
|
}
|
|
if err := x.Sync2(new(RepoTopic)); err != nil {
|
|
return fmt.Errorf("Sync2: %v", err)
|
|
}
|
|
|
|
sess := x.NewSession()
|
|
defer sess.Close()
|
|
|
|
const batchSize = 100
|
|
touchedRepo := make(map[int64]struct{})
|
|
delTopicIDs := make([]int64, 0, batchSize)
|
|
|
|
log.Info("Validating existed topics...")
|
|
if err := sess.Begin(); err != nil {
|
|
return err
|
|
}
|
|
for start := 0; ; start += batchSize {
|
|
topics := make([]*Topic, 0, batchSize)
|
|
if err := x.Cols("id", "name").Asc("id").Limit(batchSize, start).Find(&topics); err != nil {
|
|
return err
|
|
}
|
|
if len(topics) == 0 {
|
|
break
|
|
}
|
|
for _, topic := range topics {
|
|
if validateTopic(topic.Name) {
|
|
continue
|
|
}
|
|
log.Info("Incorrect topic: id = %v, name = %q", topic.ID, topic.Name)
|
|
|
|
topic.Name = strings.Replace(strings.TrimSpace(strings.ToLower(topic.Name)), " ", "-", -1)
|
|
|
|
ids := make([]int64, 0, 30)
|
|
if err := sess.Table("repo_topic").Cols("repo_id").
|
|
Where("topic_id = ?", topic.ID).Find(&ids); err != nil {
|
|
return err
|
|
}
|
|
log.Info("Touched repo ids: %v", ids)
|
|
for _, id := range ids {
|
|
touchedRepo[id] = struct{}{}
|
|
}
|
|
|
|
if validateTopic(topic.Name) {
|
|
unifiedTopic := Topic{Name: topic.Name}
|
|
exists, err := sess.Cols("id", "name").Get(&unifiedTopic)
|
|
log.Info("Exists topic with the name %q? %v, id = %v", topic.Name, exists, unifiedTopic.ID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if exists {
|
|
log.Info("Updating repo_topic rows with topic_id = %v to topic_id = %v", topic.ID, unifiedTopic.ID)
|
|
if _, err := sess.Where("topic_id = ? AND repo_id NOT IN "+
|
|
"(SELECT rt1.repo_id FROM repo_topic rt1 INNER JOIN repo_topic rt2 "+
|
|
"ON rt1.repo_id = rt2.repo_id WHERE rt1.topic_id = ? AND rt2.topic_id = ?)",
|
|
topic.ID, topic.ID, unifiedTopic.ID).Update(&RepoTopic{TopicID: unifiedTopic.ID}); err != nil {
|
|
return err
|
|
}
|
|
log.Info("Updating topic `repo_count` field")
|
|
if _, err := sess.Exec(
|
|
"UPDATE topic SET repo_count = (SELECT COUNT(*) FROM repo_topic WHERE topic_id = ? GROUP BY topic_id) WHERE id = ?",
|
|
unifiedTopic.ID, unifiedTopic.ID); err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
log.Info("Updating topic: id = %v, name = %q", topic.ID, topic.Name)
|
|
if _, err := sess.Table("topic").ID(topic.ID).
|
|
Update(&Topic{Name: topic.Name}); err != nil {
|
|
return err
|
|
}
|
|
continue
|
|
}
|
|
}
|
|
delTopicIDs = append(delTopicIDs, topic.ID)
|
|
}
|
|
}
|
|
if err := sess.Commit(); err != nil {
|
|
return err
|
|
}
|
|
|
|
sess.Init()
|
|
|
|
log.Info("Deleting incorrect topics...")
|
|
if err := sess.Begin(); err != nil {
|
|
return err
|
|
}
|
|
log.Info("Deleting 'repo_topic' rows for topics with ids = %v", delTopicIDs)
|
|
if _, err := sess.In("topic_id", delTopicIDs).Delete(&RepoTopic{}); err != nil {
|
|
return err
|
|
}
|
|
log.Info("Deleting topics with id = %v", delTopicIDs)
|
|
if _, err := sess.In("id", delTopicIDs).Delete(&Topic{}); err != nil {
|
|
return err
|
|
}
|
|
if err := sess.Commit(); err != nil {
|
|
return err
|
|
}
|
|
|
|
delRepoTopics := make([]*RepoTopic, 0, batchSize)
|
|
|
|
log.Info("Checking the number of topics in the repositories...")
|
|
for start := 0; ; start += batchSize {
|
|
repoTopics := make([]*RepoTopic, 0, batchSize)
|
|
if err := x.Cols("repo_id").Asc("repo_id").Limit(batchSize, start).
|
|
GroupBy("repo_id").Having("COUNT(*) > 25").Find(&repoTopics); err != nil {
|
|
return err
|
|
}
|
|
if len(repoTopics) == 0 {
|
|
break
|
|
}
|
|
|
|
log.Info("Number of repositories with more than 25 topics: %v", len(repoTopics))
|
|
for _, repoTopic := range repoTopics {
|
|
touchedRepo[repoTopic.RepoID] = struct{}{}
|
|
|
|
tmpRepoTopics := make([]*RepoTopic, 0, 30)
|
|
if err := x.Where("repo_id = ?", repoTopic.RepoID).Find(&tmpRepoTopics); err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Info("Repository with id = %v has %v topics", repoTopic.RepoID, len(tmpRepoTopics))
|
|
|
|
for i := len(tmpRepoTopics) - 1; i > 24; i-- {
|
|
delRepoTopics = append(delRepoTopics, tmpRepoTopics[i])
|
|
}
|
|
}
|
|
}
|
|
|
|
sess.Init()
|
|
|
|
log.Info("Deleting superfluous topics for repositories (more than 25 topics)...")
|
|
if err := sess.Begin(); err != nil {
|
|
return err
|
|
}
|
|
for _, repoTopic := range delRepoTopics {
|
|
log.Info("Deleting 'repo_topic' rows for 'repository' with id = %v. Topic id = %v",
|
|
repoTopic.RepoID, repoTopic.TopicID)
|
|
|
|
if _, err := sess.Where("repo_id = ? AND topic_id = ?", repoTopic.RepoID,
|
|
repoTopic.TopicID).Delete(&RepoTopic{}); err != nil {
|
|
return err
|
|
}
|
|
if _, err := sess.Exec(
|
|
"UPDATE topic SET repo_count = (SELECT repo_count FROM topic WHERE id = ?) - 1 WHERE id = ?",
|
|
repoTopic.TopicID, repoTopic.TopicID); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
log.Info("Updating repositories 'topics' fields...")
|
|
for repoID := range touchedRepo {
|
|
topicNames := make([]string, 0, 30)
|
|
if err := sess.Table("topic").Cols("name").
|
|
Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id").
|
|
Where("repo_topic.repo_id = ?", repoID).Desc("topic.repo_count").Find(&topicNames); err != nil {
|
|
return err
|
|
}
|
|
log.Info("Updating 'topics' field for repository with id = %v", repoID)
|
|
if _, err := sess.ID(repoID).Cols("topics").
|
|
Update(&Repository{Topics: topicNames}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return sess.Commit()
|
|
}
|