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// 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("make authorize 4 if team is owners", ownerTeamUpdate), // V1 -> V2
NewMigration("refactor access table to use id's", accessRefactor), // V2 -> V3
NewMigration("generate team-repo from team", teamToTeamRepo), // V3 -> V4
}
// 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 ownerTeamUpdate(x *xorm.Engine) (err error) {
if _, err := x.Exec("UPDATE `team` SET authorize=4 WHERE lower_name=?", "owners"); err != nil {
return fmt.Errorf("update owner team table: %v", err)
}
return nil
}
func accessRefactor(x *xorm.Engine) (err error) {
type (
AccessMode int
Access struct {
ID int64 `xorm:"pk autoincr"`
UserID int64 `xorm:"UNIQUE(s)"`
RepoID int64 `xorm:"UNIQUE(s)"`
Mode AccessMode
}
UserRepo struct {
UserID int64
RepoID int64
}
)
// We consiously don't start a session yet as we make only reads for now, no writes
accessMap := make(map[UserRepo]AccessMode, 50)
results, err := x.Query("SELECT r.id AS `repo_id`, r.is_private AS `is_private`, r.owner_id AS `owner_id`, u.type AS `owner_type` FROM `repository` r LEFT JOIN `user` u ON r.owner_id=u.id")
if err != nil {
return fmt.Errorf("select repositories: %v", err)
}
for _, repo := range results {
repoID := com.StrTo(repo["repo_id"]).MustInt64()
isPrivate := com.StrTo(repo["is_private"]).MustInt() > 0
ownerID := com.StrTo(repo["owner_id"]).MustInt64()
ownerIsOrganization := com.StrTo(repo["owner_type"]).MustInt() > 0
results, err := x.Query("SELECT `user_id` FROM `collaboration` WHERE repo_id=?", repoID)
if err != nil {
return fmt.Errorf("select collaborators: %v", err)
}
for _, user := range results {
userID := com.StrTo(user["user_id"]).MustInt64()
accessMap[UserRepo{userID, repoID}] = 2 // WRITE ACCESS
}
if !ownerIsOrganization {
continue
}
// The minimum level to add a new access record,
// because public repository has implicit open access.
minAccessLevel := AccessMode(0)
if !isPrivate {
minAccessLevel = 1
}
repoString := "$" + string(repo["repo_id"]) + "|"
results, err = x.Query("SELECT `id`,`authorize`,`repo_ids` FROM `team` WHERE org_id=? AND authorize>? ORDER BY `authorize` ASC", ownerID, int(minAccessLevel))
if err != nil {
return fmt.Errorf("select teams from org: %v", err)
}
for _, team := range results {
if !strings.Contains(string(team["repo_ids"]), repoString) {
continue
}
teamID := com.StrTo(team["id"]).MustInt64()
mode := AccessMode(com.StrTo(team["authorize"]).MustInt())
results, err := x.Query("SELECT `uid` FROM `team_user` WHERE team_id=?", teamID)
if err != nil {
return fmt.Errorf("select users from team: %v", err)
}
for _, user := range results {
userID := com.StrTo(user["user_id"]).MustInt64()
accessMap[UserRepo{userID, repoID}] = mode
}
}
}
// Drop table can't be in a session (at least not in sqlite)
if _, err = x.Exec("DROP TABLE `access`"); err != nil {
return fmt.Errorf("drop access table: %v", err)
}
// Now we start writing so we make a session
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, len(accessMap))
for ur, mode := range accessMap {
accesses = append(accesses, &Access{UserID: ur.UserID, RepoID: ur.RepoID, Mode: mode})
}
if _, err = sess.Insert(accesses); err != nil {
return fmt.Errorf("insert accesses: %v", err)
}
return sess.Commit()
}
func teamToTeamRepo(x *xorm.Engine) error {
type TeamRepo struct {
ID int64 `xorm:"pk autoincr"`
OrgID int64 `xorm:"INDEX"`
TeamID int64 `xorm:"UNIQUE(s)"`
RepoID int64 `xorm:"UNIQUE(s)"`
}
teamRepos := make([]*TeamRepo, 0, 50)
results, err := x.Query("SELECT `id`,`org_id`,`repo_ids` FROM `team`")
if err != nil {
return fmt.Errorf("select teams: %v", err)
}
for _, team := range results {
orgID := com.StrTo(team["org_id"]).MustInt64()
teamID := com.StrTo(team["id"]).MustInt64()
for _, idStr := range strings.Split(string(team["repo_ids"]), "|") {
repoID := com.StrTo(strings.TrimPrefix(idStr, "$")).MustInt64()
if repoID == 0 {
continue
}
teamRepos = append(teamRepos, &TeamRepo{
OrgID: orgID,
TeamID: teamID,
RepoID: repoID,
})
}
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
if err = sess.Sync2(new(TeamRepo)); err != nil {
return fmt.Errorf("sync: %v", err)
} else if _, err = sess.Insert(teamRepos); err != nil {
return fmt.Errorf("insert team-repos: %v", err)
}
return sess.Commit()
}