gitea/models/migrations/migrations.go
2015-02-12 22:43:32 -05:00

302 lines
7.5 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 (
"fmt"
"strings"
"time"
"github.com/Unknwon/com"
"github.com/go-xorm/xorm"
"github.com/gogits/gogs/modules/log"
"github.com/gogits/gogs/modules/setting"
)
const _MIN_DB_VER = 0
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("generate collaboration from access", accessToCollaboration), // V0 -> V1
NewMigration("refactor access table to use id's", accessRefactor), // V1 -> V2
}
// 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 user table does not exist it is a fresh installation and we
// can skip all migrations.
needsMigration, err := x.IsTableExist("user")
if err != nil {
return err
}
if needsMigration {
isEmpty, err := x.IsTableEmpty("user")
if err != nil {
return err
}
// If the user table is empty it is a fresh installation and we can
// skip all migrations.
needsMigration = !isEmpty
}
if !needsMigration {
currentVersion.Version = int64(_MIN_DB_VER + len(migrations))
}
if _, err = x.InsertOne(currentVersion); err != nil {
return fmt.Errorf("insert: %v", err)
}
}
v := currentVersion.Version
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 accessToCollaboration(x *xorm.Engine) (err error) {
type Collaboration struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
UserID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
Created time.Time
}
if err = x.Sync(new(Collaboration)); err != nil {
return fmt.Errorf("sync: %v", err)
}
results, err := x.Query("SELECT u.id AS `uid`, a.repo_name AS `repo`, a.mode AS `mode`, a.created as `created` FROM `access` a JOIN `user` u ON a.user_name=u.lower_name")
if err != nil {
return err
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
offset := strings.Split(time.Now().String(), " ")[2]
for _, result := range results {
mode := com.StrTo(result["mode"]).MustInt64()
// Collaborators must have write access.
if mode < 2 {
continue
}
userID := com.StrTo(result["uid"]).MustInt64()
repoRefName := string(result["repo"])
var created time.Time
switch {
case setting.UseSQLite3:
created, _ = time.Parse(time.RFC3339, string(result["created"]))
case setting.UseMySQL:
created, _ = time.Parse("2006-01-02 15:04:05-0700", string(result["created"])+offset)
case setting.UsePostgreSQL:
created, _ = time.Parse("2006-01-02T15:04:05Z-0700", string(result["created"])+offset)
}
// find owner of repository
parts := strings.SplitN(repoRefName, "/", 2)
ownerName := parts[0]
repoName := parts[1]
results, err := sess.Query("SELECT u.id as `uid`, ou.uid as `memberid` FROM `user` u LEFT JOIN org_user ou ON ou.org_id=u.id WHERE u.lower_name=?", ownerName)
if err != nil {
return err
}
if len(results) < 1 {
continue
}
ownerID := com.StrTo(results[0]["uid"]).MustInt64()
if ownerID == userID {
continue
}
// test if user is member of owning organization
isMember := false
for _, member := range results {
memberID := com.StrTo(member["memberid"]).MustInt64()
// We can skip all cases that a user is member of the owning organization
if memberID == userID {
isMember = true
}
}
if isMember {
continue
}
results, err = sess.Query("SELECT id FROM `repository` WHERE owner_id=? AND lower_name=?", ownerID, repoName)
if err != nil {
return err
} else if len(results) < 1 {
continue
}
collaboration := &Collaboration{
UserID: userID,
RepoID: com.StrTo(results[0]["id"]).MustInt64(),
}
has, err := sess.Get(collaboration)
if err != nil {
return err
} else if has {
continue
}
collaboration.Created = created
if _, err = sess.InsertOne(collaboration); err != nil {
return err
}
}
return sess.Commit()
}
func accessRefactor(x *xorm.Engine) (err error) {
type (
AccessMode int
Access struct {
ID int64 `xorm:"pk autoincr"`
UserName string
RepoName string
UserID int64 `xorm:"UNIQUE(s)"`
RepoID int64 `xorm:"UNIQUE(s)"`
Mode AccessMode
}
)
var rawSQL string
switch {
case setting.UseSQLite3, setting.UsePostgreSQL:
rawSQL = "DROP INDEX IF EXISTS `UQE_access_S`"
case setting.UseMySQL:
rawSQL = "DROP INDEX `UQE_access_S` ON `access`"
}
if _, err = x.Exec(rawSQL); err != nil &&
!strings.Contains(err.Error(), "check that column/key exists") {
return fmt.Errorf("drop index: %v", err)
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = sess.Sync2(new(Access)); err != nil {
return fmt.Errorf("sync: %v", err)
}
accesses := make([]*Access, 0, 50)
if err = sess.Iterate(new(Access), func(idx int, bean interface{}) error {
a := bean.(*Access)
// Update username to user ID.
users, err := sess.Query("SELECT `id` FROM `user` WHERE lower_name=?", a.UserName)
if err != nil {
return fmt.Errorf("query user: %v", err)
} else if len(users) < 1 {
return nil
}
a.UserID = com.StrTo(users[0]["id"]).MustInt64()
// Update repository name(username/reponame) to repository ID.
names := strings.Split(a.RepoName, "/")
ownerName := names[0]
repoName := names[1]
// Check if user is the owner of the repository.
ownerID := a.UserID
if ownerName != a.UserName {
users, err := sess.Query("SELECT `id` FROM `user` WHERE lower_name=?", ownerName)
if err != nil {
return fmt.Errorf("query owner: %v", err)
} else if len(users) < 1 {
return nil
}
ownerID = com.StrTo(users[0]["id"]).MustInt64()
}
repos, err := sess.Query("SELECT `id` FROM `repository` WHERE owner_id=? AND lower_name=?", ownerID, repoName)
if err != nil {
return fmt.Errorf("query repository: %v", err)
} else if len(repos) < 1 {
return nil
}
a.RepoID = com.StrTo(repos[0]["id"]).MustInt64()
accesses = append(accesses, a)
return nil
}); err != nil {
return fmt.Errorf("iterate: %v", err)
}
for i := range accesses {
if _, err = sess.Id(accesses[i].ID).Update(accesses[i]); err != nil {
return fmt.Errorf("update: %v", err)
}
}
return sess.Commit()
}