gitea/services/migrations/gitbucket.go
Lunny Xiao b6379d2f16
Change the default maxPerPage for gitbucket (#30392) (#30471)
Backport #30392 

This patch improves the migration from gitbucket to gitea.

The gitbucket uses it's own internal perPage value (= 25) for paging and
ignore per_page arguments in the requested URL. This cause gitea to
migrate only 25 issues and 25 PRs from gitbucket repository. This may
not happens on old gitbucket. But recent gitbucket 4.40 or 4.38.4 has
this problem.

This patch change to use this internally hardcoded perPage of gitbucket
as gitea's maxPerPage numer when migrating from gitbucket. There are
several perPage values in gitbucket like 25 for Isseus/PRs and 10 for
Releases. Some of those API doesn't support paging yet. It sounds
difficult to implement, but using the minimum number among them worked
out very well. So, I use 10 in this patch.

Brief descriptions of problems and this patch are also available in
https://github.com/go-gitea/gitea/issues/30316.

In addition, I'm not sure what kind of test cases are possible to write
here. It's a test for migration, so it requires testing gitbucket server
and gitea server, I guess. Please let me know if it is possible to write
such test cases here. Thanks!

Co-authored-by: Kazushi (Jam) Marukawa <jam@pobox.com>
2024-04-14 12:42:50 +00:00

91 lines
3.0 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package migrations
import (
"context"
"fmt"
"net/url"
"strings"
"code.gitea.io/gitea/modules/log"
base "code.gitea.io/gitea/modules/migration"
"code.gitea.io/gitea/modules/structs"
)
var (
_ base.Downloader = &GitBucketDownloader{}
_ base.DownloaderFactory = &GitBucketDownloaderFactory{}
)
func init() {
RegisterDownloaderFactory(&GitBucketDownloaderFactory{})
}
// GitBucketDownloaderFactory defines a GitBucket downloader factory
type GitBucketDownloaderFactory struct{}
// New returns a Downloader related to this factory according MigrateOptions
func (f *GitBucketDownloaderFactory) New(ctx context.Context, opts base.MigrateOptions) (base.Downloader, error) {
u, err := url.Parse(opts.CloneAddr)
if err != nil {
return nil, err
}
fields := strings.Split(u.Path, "/")
if len(fields) < 2 {
return nil, fmt.Errorf("invalid path: %s", u.Path)
}
baseURL := u.Scheme + "://" + u.Host + strings.TrimSuffix(strings.Join(fields[:len(fields)-2], "/"), "/git")
oldOwner := fields[len(fields)-2]
oldName := strings.TrimSuffix(fields[len(fields)-1], ".git")
log.Trace("Create GitBucket downloader. BaseURL: %s RepoOwner: %s RepoName: %s", baseURL, oldOwner, oldName)
return NewGitBucketDownloader(ctx, baseURL, opts.AuthUsername, opts.AuthPassword, opts.AuthToken, oldOwner, oldName), nil
}
// GitServiceType returns the type of git service
func (f *GitBucketDownloaderFactory) GitServiceType() structs.GitServiceType {
return structs.GitBucketService
}
// GitBucketDownloader implements a Downloader interface to get repository information
// from GitBucket via GithubDownloader
type GitBucketDownloader struct {
*GithubDownloaderV3
}
// String implements Stringer
func (g *GitBucketDownloader) String() string {
return fmt.Sprintf("migration from gitbucket server %s %s/%s", g.baseURL, g.repoOwner, g.repoName)
}
func (g *GitBucketDownloader) LogString() string {
if g == nil {
return "<GitBucketDownloader nil>"
}
return fmt.Sprintf("<GitBucketDownloader %s %s/%s>", g.baseURL, g.repoOwner, g.repoName)
}
// NewGitBucketDownloader creates a GitBucket downloader
func NewGitBucketDownloader(ctx context.Context, baseURL, userName, password, token, repoOwner, repoName string) *GitBucketDownloader {
githubDownloader := NewGithubDownloaderV3(ctx, baseURL, userName, password, token, repoOwner, repoName)
// Gitbucket 4.40 uses different internal hard-coded perPage values.
// Issues, PRs, and other major parts use 25. Release page uses 10.
// Some API doesn't support paging yet. Sounds difficult, but using
// minimum number among them worked out very well.
githubDownloader.maxPerPage = 10
githubDownloader.SkipReactions = true
githubDownloader.SkipReviews = true
return &GitBucketDownloader{
githubDownloader,
}
}
// SupportGetRepoComments return true if it supports get repo comments
func (g *GitBucketDownloader) SupportGetRepoComments() bool {
return false
}