gitea/models/migrations/migrations.go
2015-02-04 16:03:39 +02:00

161 lines
3.5 KiB
Go

package migrations
import (
"errors"
"strconv"
"strings"
"time"
"github.com/go-xorm/xorm"
)
type migration func(*xorm.Engine) error
// 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, replace it with "expiredMigration"
var migrations = []migration{
accessToCollaboration,
}
// Migrate database to current version
func Migrate(x *xorm.Engine) error {
if err := x.Sync(new(Version)); err != nil {
return err
}
currentVersion := &Version{Id: 1}
has, err := x.Get(currentVersion)
if err != nil {
return err
} else if !has {
needsMigration, err := x.IsTableExist("user")
if err != nil {
return err
}
if needsMigration {
isEmpty, err := x.IsTableEmpty("user")
if err != nil {
return err
}
needsMigration = !isEmpty
}
if !needsMigration {
currentVersion.Version = int64(len(migrations))
}
if _, err = x.InsertOne(currentVersion); err != nil {
return err
}
}
v := currentVersion.Version
for i, migration := range migrations[v:] {
if err = migration(x); err != nil {
return err
}
currentVersion.Version = v + int64(i) + 1
if _, err = x.Id(1).Update(currentVersion); err != nil {
return err
}
}
return nil
}
func expiredMigration(x *xorm.Engine) error {
return errors.New("You are migrating from a too old gogs version")
}
func mustParseInt64(in []byte) int64 {
i, err := strconv.ParseInt(string(in), 10, 64)
if err != nil {
i = 0
}
return i
}
func accessToCollaboration(x *xorm.Engine) 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 `xorm:"CREATED"`
}
x.Sync(new(Collaboration))
sql := `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`
results, err := x.Query(sql)
if err != nil {
return err
}
for _, result := range results {
userID := mustParseInt64(result["uid"])
repoRefName := string(result["repo"])
mode := mustParseInt64(result["mode"])
created := result["created"]
//Collaborators must have write access
if mode < 2 {
continue
}
// find owner of repository
parts := strings.SplitN(repoRefName, "/", 2)
ownerName := parts[0]
repoName := parts[1]
sql = `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=?`
results, err := x.Query(sql, ownerName)
if err != nil {
return err
}
if len(results) < 1 {
continue
}
ownerID := mustParseInt64(results[0]["uid"])
if ownerID == userID {
continue
}
// test if user is member of owning organization
isMember := false
for _, member := range results {
memberID := mustParseInt64(member["memberid"])
// We can skip all cases that a user is member of the owning organization
if memberID == userID {
isMember = true
}
}
if isMember {
continue
}
sql = `SELECT id FROM repository WHERE owner_id=? AND lower_name=?`
results, err = x.Query(sql, ownerID, repoName)
if err != nil {
return err
}
if len(results) < 1 {
continue
}
repoID := results[0]["id"]
sql = `INSERT INTO collaboration (user_id, repo_id, created) VALUES (?,?,?)`
_, err = x.Exec(sql, userID, repoID, created)
if err != nil {
return err
}
}
return nil
}