forked from upyun/upx
/
fsdriver.go
478 lines (425 loc) · 9.83 KB
/
fsdriver.go
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package main
import (
"errors"
"fmt"
"github.com/gosuri/uiprogress"
"github.com/upyun/go-sdk/upyun"
"log"
"os"
"path"
"path/filepath"
"strings"
"sync"
"time"
)
type FsDriver struct {
// base infomation
curDir string
operator string
bucket string
// config
maxConc int
up *upyun.UpYun
logger *log.Logger
progress *uiprogress.Progress
}
func NewFsDriver(bucket, username, password, curDir string, conc int,
logger *log.Logger) (*FsDriver, error) {
driver := &FsDriver{
curDir: curDir,
operator: username,
bucket: bucket,
up: upyun.NewUpYun(bucket, username, password),
maxConc: conc,
logger: logger,
}
var err error
_, err = driver.up.Usage()
if err != nil {
return nil, err
}
driver.progress = uiprogress.New()
driver.progress.RefreshInterval = time.Millisecond * 100
driver.progress.Start()
return driver, nil
}
// Make directory on UPYUN
func (driver *FsDriver) MakeDir(path string) error {
path = driver.AbsPath(path)
return driver.up.Mkdir(path)
}
func (dr *FsDriver) ListDirWithCount(path string,
maxCount int) (infos []*upyun.FileInfo, err error) {
path = dr.AbsPath(path)
if info, err := dr.up.GetInfo(path); err != nil {
return nil, err
} else {
if info.Type != "folder" {
return []*upyun.FileInfo{info}, nil
}
}
ch, errChannel := dr.up.GetLargeList(path, false, false)
for {
select {
case info, more := <-ch:
if !more {
return infos, nil
}
infos = append(infos, info)
case err := <-errChannel:
if err != nil {
return nil, err
}
}
}
return infos, nil
}
// Download <src> from UPYUN to <des>. <src> <des> must be file-path
func (driver *FsDriver) dlFile(src, des string) error {
// Make dir
if err := os.MkdirAll(filepath.Dir(des), os.ModePerm); err != nil {
return err
}
fd, err := os.Create(des)
if err != nil {
return err
}
defer fd.Close()
_, err = driver.up.Get(src, fd)
return err
}
func (driver *FsDriver) NewProgressBar(barSize int, skip bool,
f func(src, des string) error, srcPath, desPath string) *uiprogress.Bar {
var err error
bar := driver.progress.AddBar(barSize).AppendCompleted()
bar.PrependFunc(func(b *uiprogress.Bar) string {
status := "WAIT"
if skip {
status = "SKIP"
} else {
if b.Current() == int(barSize) {
status = "OK"
}
}
if err != nil {
return fmt.Sprintf("%-40s ERR %s", driver.short(desPath), err)
}
return fmt.Sprintf("%-40s %+4s", driver.short(desPath), status)
})
go func() {
if skip==false {
err = f(srcPath, desPath)
}
bar.Set(bar.Total)
}()
return bar
}
func (driver *FsDriver) dlFileWithProgress(src, des string) {
src = driver.AbsPath(src)
des, _ = filepath.Abs(des)
barSize := 1
upInfo, err := driver.up.GetInfo(src)
if err == nil && upInfo.Size != 0 {
barSize = int(upInfo.Size)
}
skip := false
if dkInfo,e := os.Lstat(des);e==nil && int(upInfo.Size)==int(dkInfo.Size()) {
return
}
bar := driver.NewProgressBar(barSize, skip, driver.dlFile, src, des)
for upInfo != nil && bar.Current() != bar.Total {
time.Sleep(time.Millisecond * 40)
if dkInfo, e := os.Lstat(des); e == nil {
v := int(dkInfo.Size())
if v == int(upInfo.Size) {
bar.Set(bar.Total)
break
}
bar.Set(v)
}
}
}
func (driver *FsDriver) dlDir(src, des string) {
var wg sync.WaitGroup
ups, _ := driver.up.GetLargeList(src, false, true)
desDir := filepath.Join(des, path.Base(src))
wg.Add(driver.maxConc)
for w := 0; w < driver.maxConc; w++ {
go func() {
defer wg.Done()
for {
upInfo, more := <-ups
if !more {
break
}
if upInfo.Type == "file" {
driver.dlFileWithProgress(path.Join(src, upInfo.Name),
filepath.Join(desDir, upInfo.Name))
}
}
}()
}
wg.Wait()
}
// Download <src> on UPYUN to <des> in local disk
// <src>, <des> are files or <src>, <des> are folders.
func (driver *FsDriver) Downloads(src, des string) error {
srcPath := driver.AbsPath(src)
if desPath, ok := driver.parseDiskDes(srcPath, des); ok {
if driver.IsUPDir(srcPath) {
driver.dlDir(srcPath, desPath)
} else {
driver.dlFileWithProgress(srcPath, desPath)
}
return nil
} else {
return errors.New("no support download folder to file.")
}
}
func (driver *FsDriver) uploadFile(src, des string) error {
if fd, err := os.Open(src); err == nil {
_, err = driver.up.Put(des, fd, false, nil)
return err
} else {
return err
}
}
func (driver *FsDriver) uploadFileWithProgress(src, des string) {
var dkInfo os.FileInfo
var err error
des = driver.AbsPath(des)
barSize := 1
if dkInfo, err = os.Lstat(src); err == nil && dkInfo.Size() != 0 {
barSize = int(dkInfo.Size())
}
skip := false
bar := driver.NewProgressBar(barSize, skip, driver.uploadFile, src, des)
for {
time.Sleep(time.Millisecond * 20)
v := bar.Current()
if v == int(barSize) {
return
}
add := 102400
if add+v < int(barSize)*98/100 {
bar.Set(add + v)
}
}
}
func (driver *FsDriver) uploadDir(src, des string) {
var wg sync.WaitGroup
fnames := make(chan string, driver.maxConc)
desDir := path.Join(des, filepath.Base(src))
wg.Add(driver.maxConc)
for w := 0; w < driver.maxConc; w++ {
go func() {
defer wg.Done()
for {
fname, more := <-fnames
if !more {
return
}
rel, _ := filepath.Rel(src, fname)
rel = filepath.ToSlash(rel)
desPath := path.Join(desDir, rel)
if driver.IsDiskDir(fname) {
driver.MakeDir(desPath)
} else {
driver.uploadFileWithProgress(fname, desPath)
}
}
}()
}
filepath.Walk(src, func(path string, info os.FileInfo, err error) error {
fnames <- path
return nil
})
close(fnames)
wg.Wait()
}
// Upload <src> in local disk to <des> on UPYUN.
func (driver *FsDriver) Uploads(src, des string) error {
desPath := driver.AbsPath(des)
if desPath, ok := driver.parseUPYUNDes(src, desPath); ok {
if driver.IsDiskDir(src) {
driver.uploadDir(src, desPath)
} else {
driver.uploadFileWithProgress(src, desPath)
}
return nil
} else {
return errors.New("no support upload folder to file.")
}
}
func (driver *FsDriver) rmFile(path string, async bool) {
path = driver.AbsPath(path)
remove := driver.up.Delete
if async {
remove = driver.up.AsyncDelete
}
err := remove(path)
if err != nil {
driver.logger.Printf("DELETE %s FAIL %v", path, err)
} else {
driver.logger.Printf("DELETE %s OK", path)
}
}
func (driver *FsDriver) rmDir(path string, async bool) {
// more friendly
path = driver.AbsPath(path)
infoChannel, errChannel := driver.up.GetLargeList(path, false, true)
var wg sync.WaitGroup
maxWorker := 1
if async {
maxWorker = 200
}
wg.Add(maxWorker)
for w := 0; w < maxWorker; w++ {
go func() {
defer wg.Done()
for {
select {
case upInfo, more := <-infoChannel:
if !more {
return
}
driver.rmFile(path+"/"+upInfo.Name, async)
case err := <-errChannel:
if err != nil {
driver.logger.Printf("rmDir GetLargeList error %v", err)
return
}
}
}
}()
}
wg.Wait()
driver.rmFile(path, async)
}
func (driver *FsDriver) Remove(path string, async bool) {
path = driver.AbsPath(path)
if driver.IsUPDir(path) {
driver.rmDir(path, async)
} else {
driver.rmFile(path, async)
}
}
// path MUST be a folder
func (driver *FsDriver) RemoveMatched(path string, mc *MatchConfig, async bool) {
path = driver.AbsPath(path)
if mc.wildcard != "" {
upInfos, errChannel := driver.up.GetLargeList(path, false, false)
for {
select {
case upInfo, more := <-upInfos:
if !more {
return
}
if mc.IsMatched(upInfo) {
driver.Remove(path+"/"+upInfo.Name, async)
}
case err := <-errChannel:
if err != nil {
driver.logger.Printf("RemoveMatched GetLargeList error %v", err)
}
}
}
} else {
upInfo, err := driver.up.GetInfo(path)
if err == nil && mc.IsMatched(upInfo) {
driver.Remove(path, async)
} else {
driver.logger.Printf("DELETE %s: Not matched", path)
}
}
}
// Get current working diretory
func (driver *FsDriver) GetCurDir() string {
return driver.curDir
}
// Change working directory
func (driver *FsDriver) ChangeDir(path string) error {
rPath := driver.AbsPath(path)
if !driver.IsUPDir(rPath) {
return errors.New(fmt.Sprintf("%s: Not a directory", rPath))
}
driver.curDir = rPath
return nil
}
func (driver *FsDriver) MaybeUPDir(path string) bool {
if driver.IsUPDir(path) || strings.HasSuffix(path, "/") {
return true
}
return false
}
func (driver *FsDriver) IsUPDir(path string) bool {
upInfo, err := driver.up.GetInfo(path)
if err == nil {
if upInfo.Type == "folder" {
return true
}
}
return false
}
func (driver *FsDriver) MaybeDiskDir(path string) bool {
if driver.IsDiskDir(path) || strings.HasSuffix(path, string(filepath.Separator)) {
return true
}
return false
}
func (driver *FsDriver) IsDiskDir(path string) bool {
dkInfo, err := os.Lstat(path)
if err == nil {
if dkInfo.IsDir() {
return true
}
}
return false
}
func (driver *FsDriver) parseDiskDes(src, des string) (string, bool) {
if driver.IsUPDir(src) {
if driver.MaybeDiskDir(des) {
return des, true
}
return "", false
}
if driver.MaybeDiskDir(des) {
des = filepath.Join(des, path.Base(src))
}
return des, true
}
func (driver *FsDriver) parseUPYUNDes(src, des string) (string, bool) {
if driver.IsDiskDir(src) {
if driver.MaybeUPDir(des + "/") {
return des, true
}
return "", false
}
if driver.MaybeUPDir(des) {
des = path.Join(des, filepath.Base(src))
}
return des, true
}
func (dr *FsDriver) short(s string) string {
l := len(s)
if l <= 40 {
return s
}
return s[0:17] + "..." + s[l-20:l]
}
func (driver *FsDriver) AbsPath(_path string) string {
suffix := ""
if strings.HasSuffix(_path, "/") {
suffix = "/"
}
_path = filepath.ToSlash(_path)
if _path[0] != '/' {
_path = path.Join(driver.curDir, _path)
}
_path = path.Join(_path)
// fix when _path == "/"
if !strings.HasSuffix(_path, "/") && suffix == "/" {
return _path + suffix
}
return _path
}