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transfer.go
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transfer.go
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package main
import (
"errors"
"fmt"
"github.com/jorben/osd-tool/config"
"github.com/jorben/osd-tool/helper"
"github.com/jorben/osd-tool/provider"
"io/fs"
"log"
"os"
"path"
"path/filepath"
"strings"
"sync"
)
// CloudTransfer 对象存储文件传输器
type CloudTransfer struct {
Provider provider.Provider
Config *config.TransferConfig
}
// NewTransfer 获取CloudTransfer实例
func NewTransfer(cfg *config.TransferConfig) (transfer *CloudTransfer, err error) {
transfer = &CloudTransfer{Config: cfg}
storage := strings.ToLower(cfg.Storage)
switch storage {
case provider.COS:
transfer.Provider = provider.NewQcloudCos(cfg)
case provider.OSS:
transfer.Provider = provider.NewAliyunOss(cfg)
default:
return nil, errors.New(fmt.Sprintf("storage type '%s' is not supported", cfg.Storage))
}
return transfer, nil
}
// Upload 上传本地配置的文件目录到云端对象存储
func (t *CloudTransfer) Upload() error {
t.PrintUploadConfig()
// 多线程执行
keysCh := make(chan []string, 8)
var wg sync.WaitGroup
threads := 8
for i := 0; i < threads; i++ {
wg.Add(1)
go t.AsyncUpload(&wg, keysCh)
}
defer func() {
// 关闭管道
close(keysCh)
// 等待上传完成
wg.Wait()
}()
for _, dir := range t.Config.Upload.List {
log.Printf("begin to upload, from local: %s, to osd: %s", dir.Source, dir.Dest)
err := filepath.Walk(dir.Source, func(path string, info fs.FileInfo, err error) error {
if info == nil {
log.Printf("no such file or directory: %s", path)
return nil
}
if info.IsDir() {
// 跳过需要忽略的文件夹
if helper.InArray(info.Name(), t.Config.Upload.Ignore) {
log.Printf("skipping a dir: %s", path)
return filepath.SkipDir
}
log.Printf("into dir:%s", path)
return nil
}
// 跳过需要忽略的文件
if helper.InArray(info.Name(), t.Config.Upload.Ignore) {
log.Printf("skipping a file:%s", path)
return nil
}
// 获取 osd 中的文件路径
//osdPath := strings.Replace(path, dir.Source, dir.Dest, 1)
osdPath := strings.TrimLeft(strings.Replace(path, dir.Source, dir.Dest, 1), "/")
// 丢进管道,异步上传
keysCh <- []string{osdPath, path}
return nil
})
if err != nil {
log.Printf("filewalk error:%s", err.Error())
return err
}
}
return nil
}
// Download 下载配置的云端对象存储的文件到本地
func (t *CloudTransfer) Download() error {
t.PrintDownloadConfig()
// 多线程执行
keysCh := make(chan []string, 8)
var wg sync.WaitGroup
threads := 8
for i := 0; i < threads; i++ {
wg.Add(1)
go t.AsyncDownload(&wg, keysCh)
}
defer func() {
// 关闭管道
close(keysCh)
// 等待上传完成
wg.Wait()
}()
for _, dir := range t.Config.Download.List {
log.Printf("begin to download, from osd: %s, to local: %s", dir.Source, dir.Dest)
prefix := strings.TrimLeft(dir.Source, "/")
objs := t.Provider.List(prefix, "")
for _, source := range objs {
dest := strings.Replace(source, prefix, dir.Dest, 1)
// 创建本地目录
if _, err := os.Stat(path.Dir(dest)); err != nil && os.IsNotExist(err) {
err := os.MkdirAll(path.Dir(dest), os.ModePerm)
if err != nil {
log.Printf("mkdir error:%s", err.Error())
continue
}
}
// 目录不需要下载
if strings.HasSuffix(source, "/") {
continue
}
// 丢进管道,异步下载
keysCh <- []string{source, dest}
}
}
return nil
}
// AsyncUpload 多协程上传
func (t *CloudTransfer) AsyncUpload(wg *sync.WaitGroup, keysCh <-chan []string) {
defer wg.Done()
for keys := range keysCh {
key := keys[0]
filename := keys[1]
// 上传到对象存储
err := t.Provider.PutFile(key, filename)
if err != nil {
continue
}
log.Printf("upload success, file:%s", key)
}
}
// AsyncDownload 多协程下载
func (t *CloudTransfer) AsyncDownload(wg *sync.WaitGroup, ch <-chan []string) {
defer wg.Done()
for keys := range ch {
key := keys[0]
filename := keys[1]
err := t.Provider.GetFile(key, filename)
if err != nil {
continue
}
log.Printf("download success, file:%s", filename)
}
}
// PrintUploadConfig 打印上传相关配置
func (t *CloudTransfer) PrintUploadConfig() {
fmt.Println("--------------- CONFIG ---------------")
fmt.Println("storage:", t.Config.Storage)
fmt.Println("osd config:")
fmt.Printf(" bucket: %s\n", t.Config.Osd.Bucket)
fmt.Println(" region:", t.Config.Osd.Region)
fmt.Println(" secret_id:", helper.HideSecret(t.Config.Osd.SecretId, 8))
fmt.Println(" secret_key:", helper.HideSecret(t.Config.Osd.SecretKey, 8))
fmt.Println("upload config:")
fmt.Println(" ignore:", t.Config.Upload.Ignore)
fmt.Println(" list:")
for _, p := range t.Config.Upload.List {
fmt.Printf(" %s -> %s\n", p.Source, p.Dest)
}
fmt.Println("--------------------------------------")
}
// PrintDownloadConfig 打印下载相关配置
func (t *CloudTransfer) PrintDownloadConfig() {
fmt.Println("--------------- CONFIG ---------------")
fmt.Println("storage:", t.Config.Storage)
fmt.Println("osd config:")
fmt.Printf(" bucket: %s\n", t.Config.Osd.Bucket)
fmt.Println(" region:", t.Config.Osd.Region)
fmt.Println(" secret_id:", helper.HideSecret(t.Config.Osd.SecretId, 8))
fmt.Println(" secret_key:", helper.HideSecret(t.Config.Osd.SecretKey, 8))
fmt.Println("download config:")
fmt.Println(" list:")
for _, p := range t.Config.Download.List {
fmt.Printf(" %s -> %s\n", p.Source, p.Dest)
}
fmt.Println("--------------------------------------")
}