gitea/models/migrations/migrations.go
2015-12-10 19:52:06 -05:00

425 lines
11 KiB
Go

// Copyright 2015 The Gogs 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 (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"github.com/Unknwon/com"
"github.com/go-xorm/xorm"
"gopkg.in/ini.v1"
"github.com/gogits/gogs/modules/log"
"github.com/gogits/gogs/modules/setting"
gouuid "github.com/gogits/gogs/modules/uuid"
)
const _MIN_DB_VER = 4
type Migration interface {
Description() string
Migrate(*xorm.Engine) error
}
type migration struct {
description string
migrate func(*xorm.Engine) error
}
func NewMigration(desc string, fn func(*xorm.Engine) error) Migration {
return &migration{desc, fn}
}
func (m *migration) Description() string {
return m.description
}
func (m *migration) Migrate(x *xorm.Engine) error {
return m.migrate(x)
}
// The version table. Should have only one row with id==1
type Version struct {
Id int64
Version int64
}
// This is a sequence of migrations. Add new migrations to the bottom of the list.
// If you want to "retire" a migration, remove it from the top of the list and
// update _MIN_VER_DB accordingly
var migrations = []Migration{
NewMigration("fix locale file load panic", fixLocaleFileLoadPanic), // V4 -> V5:v0.6.0
NewMigration("trim action compare URL prefix", trimCommitActionAppUrlPrefix), // V5 -> V6:v0.6.3
NewMigration("generate issue-label from issue", issueToIssueLabel), // V6 -> V7:v0.6.4
NewMigration("refactor attachment table", attachmentRefactor), // V7 -> V8:v0.6.4
NewMigration("rename pull request fields", renamePullRequestFields), // V8 -> V9:v0.6.16
NewMigration("clean up migrate repo info", cleanUpMigrateRepoInfo), // V9 -> V10:v0.6.20
}
// Migrate database to current version
func Migrate(x *xorm.Engine) error {
if err := x.Sync(new(Version)); err != nil {
return fmt.Errorf("sync: %v", err)
}
currentVersion := &Version{Id: 1}
has, err := x.Get(currentVersion)
if err != nil {
return fmt.Errorf("get: %v", err)
} else if !has {
// If the version record does not exist we think
// it is a fresh installation and we can skip all migrations.
currentVersion.Version = int64(_MIN_DB_VER + len(migrations))
if _, err = x.InsertOne(currentVersion); err != nil {
return fmt.Errorf("insert: %v", err)
}
}
v := currentVersion.Version
if _MIN_DB_VER > v {
log.Fatal(4, `Gogs no longer supports auto-migration from your previously installed version.
Please try to upgrade to a lower version (>= v0.6.0) first, then upgrade to current version.`)
return nil
}
if int(v-_MIN_DB_VER) > len(migrations) {
// User downgraded Gogs.
currentVersion.Version = int64(len(migrations) + _MIN_DB_VER)
_, err = x.Id(1).Update(currentVersion)
return err
}
for i, m := range migrations[v-_MIN_DB_VER:] {
log.Info("Migration: %s", m.Description())
if err = m.Migrate(x); err != nil {
return fmt.Errorf("do migrate: %v", err)
}
currentVersion.Version = v + int64(i) + 1
if _, err = x.Id(1).Update(currentVersion); err != nil {
return err
}
}
return nil
}
func sessionRelease(sess *xorm.Session) {
if !sess.IsCommitedOrRollbacked {
sess.Rollback()
}
sess.Close()
}
func fixLocaleFileLoadPanic(_ *xorm.Engine) error {
cfg, err := ini.Load(setting.CustomConf)
if err != nil {
return fmt.Errorf("load custom config: %v", err)
}
cfg.DeleteSection("i18n")
if err = cfg.SaveTo(setting.CustomConf); err != nil {
return fmt.Errorf("save custom config: %v", err)
}
setting.Langs = strings.Split(strings.Replace(strings.Join(setting.Langs, ","), "fr-CA", "fr-FR", 1), ",")
return nil
}
func trimCommitActionAppUrlPrefix(x *xorm.Engine) error {
type PushCommit struct {
Sha1 string
Message string
AuthorEmail string
AuthorName string
}
type PushCommits struct {
Len int
Commits []*PushCommit
CompareUrl string
}
type Action struct {
ID int64 `xorm:"pk autoincr"`
Content string `xorm:"TEXT"`
}
results, err := x.Query("SELECT `id`,`content` FROM `action` WHERE `op_type`=?", 5)
if err != nil {
return fmt.Errorf("select commit actions: %v", err)
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
var pushCommits *PushCommits
for _, action := range results {
actID := com.StrTo(string(action["id"])).MustInt64()
if actID == 0 {
continue
}
pushCommits = new(PushCommits)
if err = json.Unmarshal(action["content"], pushCommits); err != nil {
return fmt.Errorf("unmarshal action content[%d]: %v", actID, err)
}
infos := strings.Split(pushCommits.CompareUrl, "/")
if len(infos) <= 4 {
continue
}
pushCommits.CompareUrl = strings.Join(infos[len(infos)-4:], "/")
p, err := json.Marshal(pushCommits)
if err != nil {
return fmt.Errorf("marshal action content[%d]: %v", actID, err)
}
if _, err = sess.Id(actID).Update(&Action{
Content: string(p),
}); err != nil {
return fmt.Errorf("update action[%d]: %v", actID, err)
}
}
return sess.Commit()
}
func issueToIssueLabel(x *xorm.Engine) error {
type IssueLabel struct {
ID int64 `xorm:"pk autoincr"`
IssueID int64 `xorm:"UNIQUE(s)"`
LabelID int64 `xorm:"UNIQUE(s)"`
}
issueLabels := make([]*IssueLabel, 0, 50)
results, err := x.Query("SELECT `id`,`label_ids` FROM `issue`")
if err != nil {
if strings.Contains(err.Error(), "no such column") ||
strings.Contains(err.Error(), "Unknown column") {
return nil
}
return fmt.Errorf("select issues: %v", err)
}
for _, issue := range results {
issueID := com.StrTo(issue["id"]).MustInt64()
// Just in case legacy code can have duplicated IDs for same label.
mark := make(map[int64]bool)
for _, idStr := range strings.Split(string(issue["label_ids"]), "|") {
labelID := com.StrTo(strings.TrimPrefix(idStr, "$")).MustInt64()
if labelID == 0 || mark[labelID] {
continue
}
mark[labelID] = true
issueLabels = append(issueLabels, &IssueLabel{
IssueID: issueID,
LabelID: labelID,
})
}
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = sess.Sync2(new(IssueLabel)); err != nil {
return fmt.Errorf("sync2: %v", err)
} else if _, err = sess.Insert(issueLabels); err != nil {
return fmt.Errorf("insert issue-labels: %v", err)
}
return sess.Commit()
}
func attachmentRefactor(x *xorm.Engine) error {
type Attachment struct {
ID int64 `xorm:"pk autoincr"`
UUID string `xorm:"uuid INDEX"`
// For rename purpose.
Path string `xorm:"-"`
NewPath string `xorm:"-"`
}
results, err := x.Query("SELECT * FROM `attachment`")
if err != nil {
return fmt.Errorf("select attachments: %v", err)
}
attachments := make([]*Attachment, 0, len(results))
for _, attach := range results {
if !com.IsExist(string(attach["path"])) {
// If the attachment is already missing, there is no point to update it.
continue
}
attachments = append(attachments, &Attachment{
ID: com.StrTo(attach["id"]).MustInt64(),
UUID: gouuid.NewV4().String(),
Path: string(attach["path"]),
})
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = sess.Sync2(new(Attachment)); err != nil {
return fmt.Errorf("Sync2: %v", err)
}
// Note: Roll back for rename can be a dead loop,
// so produces a backup file.
var buf bytes.Buffer
buf.WriteString("# old path -> new path\n")
// Update database first because this is where error happens the most often.
for _, attach := range attachments {
if _, err = sess.Id(attach.ID).Update(attach); err != nil {
return err
}
attach.NewPath = path.Join(setting.AttachmentPath, attach.UUID[0:1], attach.UUID[1:2], attach.UUID)
buf.WriteString(attach.Path)
buf.WriteString("\t")
buf.WriteString(attach.NewPath)
buf.WriteString("\n")
}
// Then rename attachments.
isSucceed := true
defer func() {
if isSucceed {
return
}
dumpPath := path.Join(setting.LogRootPath, "attachment_path.dump")
ioutil.WriteFile(dumpPath, buf.Bytes(), 0666)
fmt.Println("Fail to rename some attachments, old and new paths are saved into:", dumpPath)
}()
for _, attach := range attachments {
if err = os.MkdirAll(path.Dir(attach.NewPath), os.ModePerm); err != nil {
isSucceed = false
return err
}
if err = os.Rename(attach.Path, attach.NewPath); err != nil {
isSucceed = false
return err
}
}
return sess.Commit()
}
func renamePullRequestFields(x *xorm.Engine) (err error) {
type PullRequest struct {
ID int64 `xorm:"pk autoincr"`
PullID int64 `xorm:"INDEX"`
PullIndex int64
HeadBarcnh string
IssueID int64 `xorm:"INDEX"`
Index int64
HeadBranch string
}
if err = x.Sync(new(PullRequest)); err != nil {
return fmt.Errorf("sync: %v", err)
}
results, err := x.Query("SELECT `id`,`pull_id`,`pull_index`,`head_barcnh` FROM `pull_request`")
if err != nil {
if strings.Contains(err.Error(), "no such column") {
return nil
}
return fmt.Errorf("select pull requests: %v", err)
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
var pull *PullRequest
for _, pr := range results {
pull = &PullRequest{
ID: com.StrTo(pr["id"]).MustInt64(),
IssueID: com.StrTo(pr["pull_id"]).MustInt64(),
Index: com.StrTo(pr["pull_index"]).MustInt64(),
HeadBranch: string(pr["head_barcnh"]),
}
if pull.Index == 0 {
continue
}
if _, err = sess.Id(pull.ID).Update(pull); err != nil {
return err
}
}
return sess.Commit()
}
func cleanUpMigrateRepoInfo(x *xorm.Engine) (err error) {
type (
User struct {
ID int64 `xorm:"pk autoincr"`
LowerName string
}
Repository struct {
ID int64 `xorm:"pk autoincr"`
OwnerID int64
LowerName string
}
)
repos := make([]*Repository, 0, 25)
if err = x.Where("is_mirror=?", false).Find(&repos); err != nil {
return fmt.Errorf("select all non-mirror repositories: %v", err)
}
var user *User
for _, repo := range repos {
user = &User{ID: repo.OwnerID}
has, err := x.Get(user)
if err != nil {
return fmt.Errorf("get owner of repository[%d - %d]: %v", repo.ID, repo.OwnerID, err)
} else if !has {
continue
}
configPath := filepath.Join(setting.RepoRootPath, user.LowerName, repo.LowerName+".git/config")
// In case repository file is somehow missing.
if !com.IsFile(configPath) {
continue
}
cfg, err := ini.Load(configPath)
if err != nil {
return fmt.Errorf("open config file: %v", err)
}
cfg.DeleteSection("remote \"origin\"")
if err = cfg.SaveToIndent(configPath, "\t"); err != nil {
return fmt.Errorf("save config file: %v", err)
}
}
return nil
}