forgejo/services/migrations/gogs.go
wxiaoguang 4647660776
Rewrite logger system (#24726)
## ⚠️ Breaking

The `log.<mode>.<logger>` style config has been dropped. If you used it,
please check the new config manual & app.example.ini to make your
instance output logs as expected.

Although many legacy options still work, it's encouraged to upgrade to
the new options.

The SMTP logger is deleted because SMTP is not suitable to collect logs.

If you have manually configured Gitea log options, please confirm the
logger system works as expected after upgrading.

## Description

Close #12082 and maybe more log-related issues, resolve some related
FIXMEs in old code (which seems unfixable before)

Just like rewriting queue #24505 : make code maintainable, clear legacy
bugs, and add the ability to support more writers (eg: JSON, structured
log)

There is a new document (with examples): `logging-config.en-us.md`

This PR is safer than the queue rewriting, because it's just for
logging, it won't break other logic.

## The old problems

The logging system is quite old and difficult to maintain:
* Unclear concepts: Logger, NamedLogger, MultiChannelledLogger,
SubLogger, EventLogger, WriterLogger etc
* Some code is diffuclt to konw whether it is right:
`log.DelNamedLogger("console")` vs `log.DelNamedLogger(log.DEFAULT)` vs
`log.DelLogger("console")`
* The old system heavily depends on ini config system, it's difficult to
create new logger for different purpose, and it's very fragile.
* The "color" trick is difficult to use and read, many colors are
unnecessary, and in the future structured log could help
* It's difficult to add other log formats, eg: JSON format
* The log outputer doesn't have full control of its goroutine, it's
difficult to make outputer have advanced behaviors
* The logs could be lost in some cases: eg: no Fatal error when using
CLI.
* Config options are passed by JSON, which is quite fragile.
* INI package makes the KEY in `[log]` section visible in `[log.sub1]`
and `[log.sub1.subA]`, this behavior is quite fragile and would cause
more unclear problems, and there is no strong requirement to support
`log.<mode>.<logger>` syntax.


## The new design

See `logger.go` for documents.


## Screenshot

<details>


![image](https://github.com/go-gitea/gitea/assets/2114189/4462d713-ba39-41f5-bb08-de912e67e1ff)


![image](https://github.com/go-gitea/gitea/assets/2114189/b188035e-f691-428b-8b2d-ff7b2199b2f9)


![image](https://github.com/go-gitea/gitea/assets/2114189/132e9745-1c3b-4e00-9e0d-15eaea495dee)

</details>

## TODO

* [x] add some new tests
* [x] fix some tests
* [x] test some sub-commands (manually ....)

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>
2023-05-21 22:35:11 +00:00

323 lines
8.5 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package migrations
import (
"context"
"fmt"
"net/http"
"net/url"
"strings"
"time"
"code.gitea.io/gitea/modules/log"
base "code.gitea.io/gitea/modules/migration"
"code.gitea.io/gitea/modules/proxy"
"code.gitea.io/gitea/modules/structs"
"github.com/gogs/go-gogs-client"
)
var (
_ base.Downloader = &GogsDownloader{}
_ base.DownloaderFactory = &GogsDownloaderFactory{}
)
func init() {
RegisterDownloaderFactory(&GogsDownloaderFactory{})
}
// GogsDownloaderFactory defines a gogs downloader factory
type GogsDownloaderFactory struct{}
// New returns a Downloader related to this factory according MigrateOptions
func (f *GogsDownloaderFactory) New(ctx context.Context, opts base.MigrateOptions) (base.Downloader, error) {
u, err := url.Parse(opts.CloneAddr)
if err != nil {
return nil, err
}
baseURL := u.Scheme + "://" + u.Host
repoNameSpace := strings.TrimSuffix(u.Path, ".git")
repoNameSpace = strings.Trim(repoNameSpace, "/")
fields := strings.Split(repoNameSpace, "/")
if len(fields) < 2 {
return nil, fmt.Errorf("invalid path: %s", repoNameSpace)
}
log.Trace("Create gogs downloader. BaseURL: %s RepoOwner: %s RepoName: %s", baseURL, fields[0], fields[1])
return NewGogsDownloader(ctx, baseURL, opts.AuthUsername, opts.AuthPassword, opts.AuthToken, fields[0], fields[1]), nil
}
// GitServiceType returns the type of git service
func (f *GogsDownloaderFactory) GitServiceType() structs.GitServiceType {
return structs.GogsService
}
// GogsDownloader implements a Downloader interface to get repository information
// from gogs via API
type GogsDownloader struct {
base.NullDownloader
ctx context.Context
client *gogs.Client
baseURL string
repoOwner string
repoName string
userName string
password string
openIssuesFinished bool
openIssuesPages int
transport http.RoundTripper
}
// String implements Stringer
func (g *GogsDownloader) String() string {
return fmt.Sprintf("migration from gogs server %s %s/%s", g.baseURL, g.repoOwner, g.repoName)
}
func (g *GogsDownloader) LogString() string {
if g == nil {
return "<GogsDownloader nil>"
}
return fmt.Sprintf("<GogsDownloader %s %s/%s>", g.baseURL, g.repoOwner, g.repoName)
}
// SetContext set context
func (g *GogsDownloader) SetContext(ctx context.Context) {
g.ctx = ctx
}
// NewGogsDownloader creates a gogs Downloader via gogs API
func NewGogsDownloader(ctx context.Context, baseURL, userName, password, token, repoOwner, repoName string) *GogsDownloader {
downloader := GogsDownloader{
ctx: ctx,
baseURL: baseURL,
userName: userName,
password: password,
repoOwner: repoOwner,
repoName: repoName,
}
var client *gogs.Client
if len(token) != 0 {
client = gogs.NewClient(baseURL, token)
downloader.userName = token
} else {
transport := NewMigrationHTTPTransport()
transport.Proxy = func(req *http.Request) (*url.URL, error) {
req.SetBasicAuth(userName, password)
return proxy.Proxy()(req)
}
downloader.transport = transport
client = gogs.NewClient(baseURL, "")
client.SetHTTPClient(&http.Client{
Transport: &downloader,
})
}
downloader.client = client
return &downloader
}
// RoundTrip wraps the provided request within this downloader's context and passes it to our internal http.Transport.
// This implements http.RoundTripper and makes the gogs client requests cancellable even though it is not cancellable itself
func (g *GogsDownloader) RoundTrip(req *http.Request) (*http.Response, error) {
return g.transport.RoundTrip(req.WithContext(g.ctx))
}
// GetRepoInfo returns a repository information
func (g *GogsDownloader) GetRepoInfo() (*base.Repository, error) {
gr, err := g.client.GetRepo(g.repoOwner, g.repoName)
if err != nil {
return nil, err
}
// convert gogs repo to stand Repo
return &base.Repository{
Owner: g.repoOwner,
Name: g.repoName,
IsPrivate: gr.Private,
Description: gr.Description,
CloneURL: gr.CloneURL,
OriginalURL: gr.HTMLURL,
DefaultBranch: gr.DefaultBranch,
}, nil
}
// GetMilestones returns milestones
func (g *GogsDownloader) GetMilestones() ([]*base.Milestone, error) {
perPage := 100
milestones := make([]*base.Milestone, 0, perPage)
ms, err := g.client.ListRepoMilestones(g.repoOwner, g.repoName)
if err != nil {
return nil, err
}
for _, m := range ms {
milestones = append(milestones, &base.Milestone{
Title: m.Title,
Description: m.Description,
Deadline: m.Deadline,
State: string(m.State),
Closed: m.Closed,
})
}
return milestones, nil
}
// GetLabels returns labels
func (g *GogsDownloader) GetLabels() ([]*base.Label, error) {
perPage := 100
labels := make([]*base.Label, 0, perPage)
ls, err := g.client.ListRepoLabels(g.repoOwner, g.repoName)
if err != nil {
return nil, err
}
for _, label := range ls {
labels = append(labels, convertGogsLabel(label))
}
return labels, nil
}
// GetIssues returns issues according start and limit, perPage is not supported
func (g *GogsDownloader) GetIssues(page, _ int) ([]*base.Issue, bool, error) {
var state string
if g.openIssuesFinished {
state = string(gogs.STATE_CLOSED)
page -= g.openIssuesPages
} else {
state = string(gogs.STATE_OPEN)
g.openIssuesPages = page
}
issues, isEnd, err := g.getIssues(page, state)
if err != nil {
return nil, false, err
}
if isEnd {
if g.openIssuesFinished {
return issues, true, nil
}
g.openIssuesFinished = true
}
return issues, false, nil
}
func (g *GogsDownloader) getIssues(page int, state string) ([]*base.Issue, bool, error) {
allIssues := make([]*base.Issue, 0, 10)
issues, err := g.client.ListRepoIssues(g.repoOwner, g.repoName, gogs.ListIssueOption{
Page: page,
State: state,
})
if err != nil {
return nil, false, fmt.Errorf("error while listing repos: %w", err)
}
for _, issue := range issues {
if issue.PullRequest != nil {
continue
}
allIssues = append(allIssues, convertGogsIssue(issue))
}
return allIssues, len(issues) == 0, nil
}
// GetComments returns comments according issueNumber
func (g *GogsDownloader) GetComments(commentable base.Commentable) ([]*base.Comment, bool, error) {
allComments := make([]*base.Comment, 0, 100)
comments, err := g.client.ListIssueComments(g.repoOwner, g.repoName, commentable.GetForeignIndex())
if err != nil {
return nil, false, fmt.Errorf("error while listing repos: %w", err)
}
for _, comment := range comments {
if len(comment.Body) == 0 || comment.Poster == nil {
continue
}
allComments = append(allComments, &base.Comment{
IssueIndex: commentable.GetLocalIndex(),
Index: comment.ID,
PosterID: comment.Poster.ID,
PosterName: comment.Poster.Login,
PosterEmail: comment.Poster.Email,
Content: comment.Body,
Created: comment.Created,
Updated: comment.Updated,
})
}
return allComments, true, nil
}
// GetTopics return repository topics
func (g *GogsDownloader) GetTopics() ([]string, error) {
return []string{}, nil
}
// FormatCloneURL add authentication into remote URLs
func (g *GogsDownloader) FormatCloneURL(opts MigrateOptions, remoteAddr string) (string, error) {
if len(opts.AuthToken) > 0 || len(opts.AuthUsername) > 0 {
u, err := url.Parse(remoteAddr)
if err != nil {
return "", err
}
if len(opts.AuthToken) != 0 {
u.User = url.UserPassword(opts.AuthToken, "")
} else {
u.User = url.UserPassword(opts.AuthUsername, opts.AuthPassword)
}
return u.String(), nil
}
return remoteAddr, nil
}
func convertGogsIssue(issue *gogs.Issue) *base.Issue {
var milestone string
if issue.Milestone != nil {
milestone = issue.Milestone.Title
}
labels := make([]*base.Label, 0, len(issue.Labels))
for _, l := range issue.Labels {
labels = append(labels, convertGogsLabel(l))
}
var closed *time.Time
if issue.State == gogs.STATE_CLOSED {
// gogs client haven't provide closed, so we use updated instead
closed = &issue.Updated
}
return &base.Issue{
Title: issue.Title,
Number: issue.Index,
PosterID: issue.Poster.ID,
PosterName: issue.Poster.Login,
PosterEmail: issue.Poster.Email,
Content: issue.Body,
Milestone: milestone,
State: string(issue.State),
Created: issue.Created,
Updated: issue.Updated,
Labels: labels,
Closed: closed,
ForeignIndex: issue.Index,
}
}
func convertGogsLabel(label *gogs.Label) *base.Label {
return &base.Label{
Name: label.Name,
Color: label.Color,
}
}