forgejo/modules/migrations/migrate.go
zeripath 722a7c902d
Add Close() method to gogitRepository (#8901)
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.

This PR adds this Close function and adds the Close functions as necessary.

In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.

Fixes #7947
2019-11-13 07:01:19 +00:00

267 lines
6.3 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Copyright 2018 Jonas Franz. 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"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/migrations/base"
"code.gitea.io/gitea/modules/structs"
)
// MigrateOptions is equal to base.MigrateOptions
type MigrateOptions = base.MigrateOptions
var (
factories []base.DownloaderFactory
)
// RegisterDownloaderFactory registers a downloader factory
func RegisterDownloaderFactory(factory base.DownloaderFactory) {
factories = append(factories, factory)
}
// MigrateRepository migrate repository according MigrateOptions
func MigrateRepository(doer *models.User, ownerName string, opts base.MigrateOptions) (*models.Repository, error) {
var (
downloader base.Downloader
uploader = NewGiteaLocalUploader(doer, ownerName, opts.RepoName)
theFactory base.DownloaderFactory
)
for _, factory := range factories {
if match, err := factory.Match(opts); err != nil {
return nil, err
} else if match {
downloader, err = factory.New(opts)
if err != nil {
return nil, err
}
theFactory = factory
break
}
}
if downloader == nil {
opts.Wiki = true
opts.Milestones = false
opts.Labels = false
opts.Releases = false
opts.Comments = false
opts.Issues = false
opts.PullRequests = false
opts.GitServiceType = structs.PlainGitService
downloader = NewPlainGitDownloader(ownerName, opts.RepoName, opts.CloneAddr)
log.Trace("Will migrate from git: %s", opts.CloneAddr)
} else if opts.GitServiceType == structs.NotMigrated {
opts.GitServiceType = theFactory.GitServiceType()
}
uploader.gitServiceType = opts.GitServiceType
if err := migrateRepository(downloader, uploader, opts); err != nil {
if err1 := uploader.Rollback(); err1 != nil {
log.Error("rollback failed: %v", err1)
}
if err2 := models.CreateRepositoryNotice(fmt.Sprintf("Migrate repository from %s failed: %v", opts.CloneAddr, err)); err2 != nil {
log.Error("create respotiry notice failed: ", err2)
}
return nil, err
}
return uploader.repo, nil
}
// migrateRepository will download informations and upload to Uploader, this is a simple
// process for small repository. For a big repository, save all the data to disk
// before upload is better
func migrateRepository(downloader base.Downloader, uploader base.Uploader, opts base.MigrateOptions) error {
repo, err := downloader.GetRepoInfo()
if err != nil {
return err
}
repo.IsPrivate = opts.Private
repo.IsMirror = opts.Mirror
if opts.Description != "" {
repo.Description = opts.Description
}
log.Trace("migrating git data")
if err := uploader.CreateRepo(repo, opts); err != nil {
return err
}
defer uploader.Close()
log.Trace("migrating topics")
topics, err := downloader.GetTopics()
if err != nil {
return err
}
if len(topics) > 0 {
if err := uploader.CreateTopics(topics...); err != nil {
return err
}
}
if opts.Milestones {
log.Trace("migrating milestones")
milestones, err := downloader.GetMilestones()
if err != nil {
return err
}
msBatchSize := uploader.MaxBatchInsertSize("milestone")
for len(milestones) > 0 {
if len(milestones) < msBatchSize {
msBatchSize = len(milestones)
}
if err := uploader.CreateMilestones(milestones...); err != nil {
return err
}
milestones = milestones[msBatchSize:]
}
}
if opts.Labels {
log.Trace("migrating labels")
labels, err := downloader.GetLabels()
if err != nil {
return err
}
lbBatchSize := uploader.MaxBatchInsertSize("label")
for len(labels) > 0 {
if len(labels) < lbBatchSize {
lbBatchSize = len(labels)
}
if err := uploader.CreateLabels(labels...); err != nil {
return err
}
labels = labels[lbBatchSize:]
}
}
if opts.Releases {
log.Trace("migrating releases")
releases, err := downloader.GetReleases()
if err != nil {
return err
}
relBatchSize := uploader.MaxBatchInsertSize("release")
for len(releases) > 0 {
if len(releases) < relBatchSize {
relBatchSize = len(releases)
}
if err := uploader.CreateReleases(releases[:relBatchSize]...); err != nil {
return err
}
releases = releases[relBatchSize:]
}
}
var commentBatchSize = uploader.MaxBatchInsertSize("comment")
if opts.Issues {
log.Trace("migrating issues and comments")
var issueBatchSize = uploader.MaxBatchInsertSize("issue")
for i := 1; ; i++ {
issues, isEnd, err := downloader.GetIssues(i, issueBatchSize)
if err != nil {
return err
}
if err := uploader.CreateIssues(issues...); err != nil {
return err
}
if !opts.Comments {
continue
}
var allComments = make([]*base.Comment, 0, commentBatchSize)
for _, issue := range issues {
comments, err := downloader.GetComments(issue.Number)
if err != nil {
return err
}
allComments = append(allComments, comments...)
if len(allComments) >= commentBatchSize {
if err := uploader.CreateComments(allComments[:commentBatchSize]...); err != nil {
return err
}
allComments = allComments[commentBatchSize:]
}
}
if len(allComments) > 0 {
if err := uploader.CreateComments(allComments...); err != nil {
return err
}
}
if isEnd {
break
}
}
}
if opts.PullRequests {
log.Trace("migrating pull requests and comments")
var prBatchSize = uploader.MaxBatchInsertSize("pullrequest")
for i := 1; ; i++ {
prs, err := downloader.GetPullRequests(i, prBatchSize)
if err != nil {
return err
}
if err := uploader.CreatePullRequests(prs...); err != nil {
return err
}
if !opts.Comments {
continue
}
var allComments = make([]*base.Comment, 0, commentBatchSize)
for _, pr := range prs {
comments, err := downloader.GetComments(pr.Number)
if err != nil {
return err
}
allComments = append(allComments, comments...)
if len(allComments) >= commentBatchSize {
if err := uploader.CreateComments(allComments[:commentBatchSize]...); err != nil {
return err
}
allComments = allComments[commentBatchSize:]
}
}
if len(allComments) > 0 {
if err := uploader.CreateComments(allComments...); err != nil {
return err
}
}
if len(prs) < prBatchSize {
break
}
}
}
return nil
}