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// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package migration
import (
"context"
"time"
)
var _ Downloader = &RetryDownloader{}
// RetryDownloader retry the downloads
type RetryDownloader struct {
Downloader
ctx context.Context
RetryTimes int // the total execute times
RetryDelay int // time to delay seconds
}
// NewRetryDownloader creates a retry downloader
func NewRetryDownloader(ctx context.Context, downloader Downloader, retryTimes, retryDelay int) *RetryDownloader {
return &RetryDownloader{
Downloader: downloader,
ctx: ctx,
RetryTimes: retryTimes,
RetryDelay: retryDelay,
}
}
func (d *RetryDownloader) retry(work func() error) error {
var (
times = d.RetryTimes
err error
)
for ; times > 0; times-- {
if err = work(); err == nil {
return nil
}
if IsErrNotSupported(err) {
return err
}
select {
case <-d.ctx.Done():
return d.ctx.Err()
case <-time.After(time.Second * time.Duration(d.RetryDelay)):
}
}
return err
}
// SetContext set context
func (d *RetryDownloader) SetContext(ctx context.Context) {
d.ctx = ctx
d.Downloader.SetContext(ctx)
}
// GetRepoInfo returns a repository information with retry
func (d *RetryDownloader) GetRepoInfo() (*Repository, error) {
var (
repo *Repository
err error
)
err = d.retry(func() error {
repo, err = d.Downloader.GetRepoInfo()
return err
})
return repo, err
}
// GetTopics returns a repository's topics with retry
func (d *RetryDownloader) GetTopics() ([]string, error) {
var (
topics []string
err error
)
err = d.retry(func() error {
topics, err = d.Downloader.GetTopics()
return err
})
return topics, err
}
// GetMilestones returns a repository's milestones with retry
func (d *RetryDownloader) GetMilestones() ([]*Milestone, error) {
var (
milestones []*Milestone
err error
)
err = d.retry(func() error {
milestones, err = d.Downloader.GetMilestones()
return err
})
return milestones, err
}
// GetReleases returns a repository's releases with retry
func (d *RetryDownloader) GetReleases() ([]*Release, error) {
var (
releases []*Release
err error
)
err = d.retry(func() error {
releases, err = d.Downloader.GetReleases()
return err
})
return releases, err
}
// GetLabels returns a repository's labels with retry
func (d *RetryDownloader) GetLabels() ([]*Label, error) {
var (
labels []*Label
err error
)
err = d.retry(func() error {
labels, err = d.Downloader.GetLabels()
return err
})
return labels, err
}
// GetIssues returns a repository's issues with retry
func (d *RetryDownloader) GetIssues(page, perPage int) ([]*Issue, bool, error) {
var (
issues []*Issue
isEnd bool
err error
)
err = d.retry(func() error {
issues, isEnd, err = d.Downloader.GetIssues(page, perPage)
return err
})
return issues, isEnd, err
}
// GetComments returns a repository's comments with retry
func (d *RetryDownloader) GetComments(commentable Commentable) ([]*Comment, bool, error) {
var (
comments []*Comment
isEnd bool
err error
)
err = d.retry(func() error {
comments, isEnd, err = d.Downloader.GetComments(commentable)
return err
})
return comments, isEnd, err
}
// GetPullRequests returns a repository's pull requests with retry
func (d *RetryDownloader) GetPullRequests(page, perPage int) ([]*PullRequest, bool, error) {
var (
prs []*PullRequest
err error
isEnd bool
)
err = d.retry(func() error {
prs, isEnd, err = d.Downloader.GetPullRequests(page, perPage)
return err
})
return prs, isEnd, err
}
// GetReviews returns pull requests reviews
func (d *RetryDownloader) GetReviews(reviewable Reviewable) ([]*Review, error) {
var (
reviews []*Review
err error
)
err = d.retry(func() error {
reviews, err = d.Downloader.GetReviews(reviewable)
return err
})
return reviews, err
}
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