forgejo/modules/migrations/migrate.go
Lunny Xiao 08069dc465
Improve migrations to support migrating milestones/labels/issues/comments/pullrequests (#6290)
* add migrations

* fix package dependency

* fix lints

* implements migrations except pull requests

* add releases

* migrating releases

* fix bug

* fix lint

* fix migrate releases

* fix tests

* add rollback

* pull request migtations

* fix import

* fix go module vendor

* add tests for upload to gitea

* more migrate options

* fix swagger-check

* fix misspell

* add options on migration UI

* fix log error

* improve UI options on migrating

* add support for username password when migrating from github

* fix tests

* remove comments and fix migrate limitation

* improve error handles

* migrate API will also support migrate milestones/labels/issues/pulls/releases

* fix tests and remove unused codes

* add DownloaderFactory and docs about how to create a new Downloader

* fix misspell

* fix migration docs

* Add hints about migrate options on migration page

* fix tests
2019-05-07 09:12:51 +08:00

205 lines
4.7 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"
)
// 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.Name)
)
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
}
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
downloader = NewPlainGitDownloader(ownerName, opts.Name, opts.RemoteURL)
log.Trace("Will migrate from git: %s", opts.RemoteURL)
}
if err := migrateRepository(downloader, uploader, opts); err != nil {
if err1 := uploader.Rollback(); err1 != nil {
log.Error("rollback failed: %v", err1)
}
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
log.Trace("migrating git data")
if err := uploader.CreateRepo(repo, opts.Wiki); err != nil {
return err
}
if opts.Milestones {
log.Trace("migrating milestones")
milestones, err := downloader.GetMilestones()
if err != nil {
return err
}
for _, milestone := range milestones {
if err := uploader.CreateMilestone(milestone); err != nil {
return err
}
}
}
if opts.Labels {
log.Trace("migrating labels")
labels, err := downloader.GetLabels()
if err != nil {
return err
}
for _, label := range labels {
if err := uploader.CreateLabel(label); err != nil {
return err
}
}
}
if opts.Releases {
log.Trace("migrating releases")
releases, err := downloader.GetReleases()
if err != nil {
return err
}
for _, release := range releases {
if err := uploader.CreateRelease(release); err != nil {
return err
}
}
}
if opts.Issues {
log.Trace("migrating issues and comments")
for {
issues, err := downloader.GetIssues(0, 100)
if err != nil {
return err
}
for _, issue := range issues {
if !opts.IgnoreIssueAuthor {
issue.Content = fmt.Sprintf("Author: @%s \n\n%s", issue.PosterName, issue.Content)
}
if err := uploader.CreateIssue(issue); err != nil {
return err
}
if !opts.Comments {
continue
}
comments, err := downloader.GetComments(issue.Number)
if err != nil {
return err
}
for _, comment := range comments {
if !opts.IgnoreIssueAuthor {
comment.Content = fmt.Sprintf("Author: @%s \n\n%s", comment.PosterName, comment.Content)
}
if err := uploader.CreateComment(issue.Number, comment); err != nil {
return err
}
}
}
if len(issues) < 100 {
break
}
}
}
if opts.PullRequests {
log.Trace("migrating pull requests and comments")
for {
prs, err := downloader.GetPullRequests(0, 100)
if err != nil {
return err
}
for _, pr := range prs {
if !opts.IgnoreIssueAuthor {
pr.Content = fmt.Sprintf("Author: @%s \n\n%s", pr.PosterName, pr.Content)
}
if err := uploader.CreatePullRequest(pr); err != nil {
return err
}
if !opts.Comments {
continue
}
comments, err := downloader.GetComments(pr.Number)
if err != nil {
return err
}
for _, comment := range comments {
if !opts.IgnoreIssueAuthor {
comment.Content = fmt.Sprintf("Author: @%s \n\n%s", comment.PosterName, comment.Content)
}
if err := uploader.CreateComment(pr.Number, comment); err != nil {
return err
}
}
}
if len(prs) < 100 {
break
}
}
}
return nil
}