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gitea/modules/migrations/base/downloader.go

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// 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 base
import (
"time"
"code.gitea.io/gitea/modules/structs"
)
// Downloader downloads the site repo informations
type Downloader interface {
GetRepoInfo() (*Repository, error)
GetTopics() ([]string, error)
GetMilestones() ([]*Milestone, error)
GetReleases() ([]*Release, error)
GetLabels() ([]*Label, error)
GetIssues(page, perPage int) ([]*Issue, bool, error)
GetComments(issueNumber int64) ([]*Comment, error)
GetPullRequests(page, perPage int) ([]*PullRequest, error)
}
// DownloaderFactory defines an interface to match a downloader implementation and create a downloader
type DownloaderFactory interface {
Match(opts MigrateOptions) (bool, error)
New(opts MigrateOptions) (Downloader, error)
GitServiceType() structs.GitServiceType
}
// RetryDownloader retry the downloads
type RetryDownloader struct {
Downloader
RetryTimes int // the total execute times
RetryDelay int // time to delay seconds
}
// NewRetryDownloader creates a retry downloader
func NewRetryDownloader(downloader Downloader, retryTimes, retryDelay int) *RetryDownloader {
return &RetryDownloader{
Downloader: downloader,
RetryTimes: retryTimes,
RetryDelay: retryDelay,
}
}
// GetRepoInfo returns a repository information with retry
func (d *RetryDownloader) GetRepoInfo() (*Repository, error) {
var (
times = d.RetryTimes
repo *Repository
err error
)
for ; times > 0; times-- {
if repo, err = d.Downloader.GetRepoInfo(); err == nil {
return repo, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetTopics returns a repository's topics with retry
func (d *RetryDownloader) GetTopics() ([]string, error) {
var (
times = d.RetryTimes
topics []string
err error
)
for ; times > 0; times-- {
if topics, err = d.Downloader.GetTopics(); err == nil {
return topics, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetMilestones returns a repository's milestones with retry
func (d *RetryDownloader) GetMilestones() ([]*Milestone, error) {
var (
times = d.RetryTimes
milestones []*Milestone
err error
)
for ; times > 0; times-- {
if milestones, err = d.Downloader.GetMilestones(); err == nil {
return milestones, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetReleases returns a repository's releases with retry
func (d *RetryDownloader) GetReleases() ([]*Release, error) {
var (
times = d.RetryTimes
releases []*Release
err error
)
for ; times > 0; times-- {
if releases, err = d.Downloader.GetReleases(); err == nil {
return releases, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetLabels returns a repository's labels with retry
func (d *RetryDownloader) GetLabels() ([]*Label, error) {
var (
times = d.RetryTimes
labels []*Label
err error
)
for ; times > 0; times-- {
if labels, err = d.Downloader.GetLabels(); err == nil {
return labels, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetIssues returns a repository's issues with retry
func (d *RetryDownloader) GetIssues(page, perPage int) ([]*Issue, bool, error) {
var (
times = d.RetryTimes
issues []*Issue
isEnd bool
err error
)
for ; times > 0; times-- {
if issues, isEnd, err = d.Downloader.GetIssues(page, perPage); err == nil {
return issues, isEnd, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, false, err
}
// GetComments returns a repository's comments with retry
func (d *RetryDownloader) GetComments(issueNumber int64) ([]*Comment, error) {
var (
times = d.RetryTimes
comments []*Comment
err error
)
for ; times > 0; times-- {
if comments, err = d.Downloader.GetComments(issueNumber); err == nil {
return comments, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}
// GetPullRequests returns a repository's pull requests with retry
func (d *RetryDownloader) GetPullRequests(page, perPage int) ([]*PullRequest, error) {
var (
times = d.RetryTimes
prs []*PullRequest
err error
)
for ; times > 0; times-- {
if prs, err = d.Downloader.GetPullRequests(page, perPage); err == nil {
return prs, nil
}
time.Sleep(time.Second * time.Duration(d.RetryDelay))
}
return nil, err
}