swift: make all operations work from the root #3421

This commit is contained in:
Nick Craig-Wood 2019-08-06 22:17:40 +01:00
parent d266a171c2
commit eaeef4811f

View File

@ -8,10 +8,8 @@ import (
"fmt"
"io"
"path"
"regexp"
"strconv"
"strings"
"sync"
"time"
"github.com/ncw/swift"
@ -24,6 +22,7 @@ import (
"github.com/rclone/rclone/fs/hash"
"github.com/rclone/rclone/fs/operations"
"github.com/rclone/rclone/fs/walk"
"github.com/rclone/rclone/lib/bucket"
"github.com/rclone/rclone/lib/pacer"
"github.com/rclone/rclone/lib/readers"
)
@ -213,10 +212,9 @@ type Fs struct {
features *fs.Features // optional features
opt Options // options for this backend
c *swift.Connection // the connection to the swift server
container string // the container we are working on
containerOKMu sync.Mutex // mutex to protect container OK
containerOK bool // true if we have created the container
segmentsContainer string // container to store the segments (if any) in
rootContainer string // container part of root (if any)
rootDirectory string // directory part of root (if any)
cache *bucket.Cache // cache of container status
noCheckContainer bool // don't check the container before creating it
pacer *fs.Pacer // To pace the API calls
}
@ -243,18 +241,18 @@ func (f *Fs) Name() string {
// Root of the remote (as passed into NewFs)
func (f *Fs) Root() string {
if f.root == "" {
return f.container
}
return f.container + "/" + f.root
return f.root
}
// String converts this Fs to a string
func (f *Fs) String() string {
if f.root == "" {
return fmt.Sprintf("Swift container %s", f.container)
if f.rootContainer == "" {
return fmt.Sprintf("Swift root")
}
return fmt.Sprintf("Swift container %s path %s", f.container, f.root)
if f.rootDirectory == "" {
return fmt.Sprintf("Swift container %s", f.rootContainer)
}
return fmt.Sprintf("Swift container %s path %s", f.rootContainer, f.rootDirectory)
}
// Features returns the optional features of this Fs
@ -313,21 +311,23 @@ func shouldRetryHeaders(headers swift.Headers, err error) (bool, error) {
return shouldRetry(err)
}
// Pattern to match a swift path
var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
// parseParse parses a swift 'url'
func parsePath(path string) (container, directory string, err error) {
parts := matcher.FindStringSubmatch(path)
if parts == nil {
err = errors.Errorf("couldn't find container in swift path %q", path)
} else {
container, directory = parts[1], parts[2]
directory = strings.Trim(directory, "/")
}
// parsePath parses a remote 'url'
func parsePath(path string) (root string) {
root = strings.Trim(path, "/")
return
}
// split returns container and containerPath from the rootRelativePath
// relative to f.root
func (f *Fs) split(rootRelativePath string) (container, containerPath string) {
return bucket.Split(path.Join(f.root, rootRelativePath))
}
// split returns container and containerPath from the object
func (o *Object) split() (container, containerPath string) {
return o.fs.split(o.remote)
}
// swiftConnection makes a connection to swift
func swiftConnection(opt *Options, name string) (*swift.Connection, error) {
c := &swift.Connection{
@ -410,47 +410,48 @@ func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error)
return
}
// setRoot changes the root of the Fs
func (f *Fs) setRoot(root string) {
f.root = parsePath(root)
f.rootContainer, f.rootDirectory = bucket.Split(f.root)
}
// NewFsWithConnection constructs an Fs from the path, container:path
// and authenticated connection.
//
// if noCheckContainer is set then the Fs won't check the container
// exists before creating it.
func NewFsWithConnection(opt *Options, name, root string, c *swift.Connection, noCheckContainer bool) (fs.Fs, error) {
container, directory, err := parsePath(root)
if err != nil {
return nil, err
}
f := &Fs{
name: name,
opt: *opt,
c: c,
container: container,
segmentsContainer: container + "_segments",
root: directory,
noCheckContainer: noCheckContainer,
pacer: fs.NewPacer(pacer.NewS3(pacer.MinSleep(minSleep))),
cache: bucket.NewCache(),
}
f.setRoot(root)
f.features = (&fs.Features{
ReadMimeType: true,
WriteMimeType: true,
BucketBased: true,
BucketBasedRootOK: true,
}).Fill(f)
if f.root != "" {
f.root += "/"
if f.rootContainer != "" && f.rootDirectory != "" {
// Check to see if the object exists - ignoring directory markers
var info swift.Object
var err error
err = f.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
info, rxHeaders, err = f.c.Object(container, directory)
info, rxHeaders, err = f.c.Object(f.rootContainer, f.rootDirectory)
return shouldRetryHeaders(rxHeaders, err)
})
if err == nil && info.ContentType != directoryMarkerContentType {
f.root = path.Dir(directory)
if f.root == "." {
f.root = ""
} else {
f.root += "/"
newRoot := path.Dir(f.root)
if newRoot == "." {
newRoot = ""
}
f.setRoot(newRoot)
// return an error with an fs which points to the parent
return f, fs.ErrorIsFile
}
@ -518,23 +519,26 @@ func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
type listFn func(remote string, object *swift.Object, isDirectory bool) error
// listContainerRoot lists the objects into the function supplied from
// the container and root supplied
// the container and directory supplied. The remote has prefix
// removed from it and if addContainer is set then it adds the
// container to the start.
//
// Set recurse to read sub directories
func (f *Fs) listContainerRoot(container, root string, dir string, recurse bool, fn listFn) error {
prefix := root
if dir != "" {
prefix += dir + "/"
func (f *Fs) listContainerRoot(container, directory, prefix string, addContainer bool, recurse bool, fn listFn) error {
if prefix != "" {
prefix += "/"
}
if directory != "" {
directory += "/"
}
// Options for ObjectsWalk
opts := swift.ObjectsOpts{
Prefix: prefix,
Prefix: directory,
Limit: listChunks,
}
if !recurse {
opts.Delimiter = '/'
}
rootLength := len(root)
return f.c.ObjectsWalk(container, &opts, func(opts *swift.ObjectsOpts) (interface{}, error) {
var objects []swift.Object
var err error
@ -559,7 +563,10 @@ func (f *Fs) listContainerRoot(container, root string, dir string, recurse bool,
// duplicate directories. Ignore them here.
continue
}
remote := object.Name[rootLength:]
remote := object.Name[len(prefix):]
if addContainer {
remote = path.Join(container, remote)
}
err = fn(remote, object, isDirectory)
if err != nil {
break
@ -573,8 +580,8 @@ func (f *Fs) listContainerRoot(container, root string, dir string, recurse bool,
type addEntryFn func(fs.DirEntry) error
// list the objects into the function supplied
func (f *Fs) list(dir string, recurse bool, fn addEntryFn) error {
err := f.listContainerRoot(f.container, f.root, dir, recurse, func(remote string, object *swift.Object, isDirectory bool) (err error) {
func (f *Fs) list(container, directory, prefix string, addContainer bool, recurse bool, fn addEntryFn) error {
err := f.listContainerRoot(container, directory, prefix, addContainer, recurse, func(remote string, object *swift.Object, isDirectory bool) (err error) {
if isDirectory {
remote = strings.TrimRight(remote, "/")
d := fs.NewDir(remote, time.Time{}).SetSize(object.Bytes)
@ -598,22 +605,13 @@ func (f *Fs) list(dir string, recurse bool, fn addEntryFn) error {
return err
}
// mark the container as being OK
func (f *Fs) markContainerOK() {
if f.container != "" {
f.containerOKMu.Lock()
f.containerOK = true
f.containerOKMu.Unlock()
}
}
// listDir lists a single directory
func (f *Fs) listDir(dir string) (entries fs.DirEntries, err error) {
if f.container == "" {
func (f *Fs) listDir(container, directory, prefix string, addContainer bool) (entries fs.DirEntries, err error) {
if container == "" {
return nil, fs.ErrorListBucketRequired
}
// List the objects
err = f.list(dir, false, func(entry fs.DirEntry) error {
err = f.list(container, directory, prefix, addContainer, false, func(entry fs.DirEntry) error {
entries = append(entries, entry)
return nil
})
@ -621,7 +619,7 @@ func (f *Fs) listDir(dir string) (entries fs.DirEntries, err error) {
return nil, err
}
// container must be present if listing succeeded
f.markContainerOK()
f.cache.MarkOK(container)
return entries, nil
}
@ -639,6 +637,7 @@ func (f *Fs) listContainers(dir string) (entries fs.DirEntries, err error) {
return nil, errors.Wrap(err, "container listing failed")
}
for _, container := range containers {
f.cache.MarkOK(container.Name)
d := fs.NewDir(container.Name, time.Time{}).SetSize(container.Bytes).SetItems(container.Count)
entries = append(entries, d)
}
@ -655,10 +654,11 @@ func (f *Fs) listContainers(dir string) (entries fs.DirEntries, err error) {
// This should return ErrDirNotFound if the directory isn't
// found.
func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
if f.container == "" {
return f.listContainers(dir)
container, directory := f.split(dir)
if container == "" {
return f.listContainers(directory)
}
return f.listDir(dir)
return f.listDir(container, directory, f.rootDirectory, f.rootContainer == "")
}
// ListR lists the objects and directories of the Fs starting
@ -676,20 +676,39 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
// immediately.
//
// Don't implement this unless you have a more efficient way
// of listing recursively that doing a directory traversal.
// of listing recursively than doing a directory traversal.
func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (err error) {
if f.container == "" {
return errors.New("container needed for recursive list")
}
container, directory := f.split(dir)
list := walk.NewListRHelper(callback)
err = f.list(dir, true, func(entry fs.DirEntry) error {
listR := func(container, directory, prefix string, addContainer bool) error {
return f.list(container, directory, prefix, addContainer, true, func(entry fs.DirEntry) error {
return list.Add(entry)
})
}
if container == "" {
entries, err := f.listContainers("")
if err != nil {
return err
}
for _, entry := range entries {
err = list.Add(entry)
if err != nil {
return err
}
container := entry.Remote()
err = listR(container, "", f.rootDirectory, true)
if err != nil {
return err
}
}
} else {
err = listR(container, directory, f.rootDirectory, f.rootContainer == "")
if err != nil {
return err
}
}
// container must be present if listing succeeded
f.markContainerOK()
f.cache.MarkOK(container)
return list.Flush()
}
@ -738,21 +757,14 @@ func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, opt
// Mkdir creates the container if it doesn't exist
func (f *Fs) Mkdir(ctx context.Context, dir string) error {
f.containerOKMu.Lock()
defer f.containerOKMu.Unlock()
if f.containerOK {
return nil
}
// if we are at the root, then it is OK
if f.container == "" {
return nil
}
container, _ := f.split(dir)
return f.cache.Create(container, func() error {
// Check to see if container exists first
var err error = swift.ContainerNotFound
if !f.noCheckContainer {
err = f.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
_, rxHeaders, err = f.c.Container(f.container)
_, rxHeaders, err = f.c.Container(container)
return shouldRetryHeaders(rxHeaders, err)
})
}
@ -762,34 +774,36 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) error {
headers["X-Storage-Policy"] = f.opt.StoragePolicy
}
err = f.pacer.Call(func() (bool, error) {
err = f.c.ContainerCreate(f.container, headers)
err = f.c.ContainerCreate(container, headers)
return shouldRetry(err)
})
}
if err == nil {
f.containerOK = true
fs.Infof(f, "Container %q created", container)
}
}
return err
}, nil)
}
// Rmdir deletes the container if the fs is at the root
//
// Returns an error if it isn't empty
func (f *Fs) Rmdir(ctx context.Context, dir string) error {
f.containerOKMu.Lock()
defer f.containerOKMu.Unlock()
if f.root != "" || dir != "" {
container, directory := f.split(dir)
if container == "" || directory != "" {
return nil
}
var err error
err = f.pacer.Call(func() (bool, error) {
err = f.c.ContainerDelete(f.container)
err := f.cache.Remove(container, func() error {
err := f.pacer.Call(func() (bool, error) {
err := f.c.ContainerDelete(container)
return shouldRetry(err)
})
if err == nil {
f.containerOK = false
fs.Infof(f, "Container %q removed", container)
}
return err
})
return err
}
// Precision of the remote
@ -807,7 +821,7 @@ func (f *Fs) Purge(ctx context.Context) error {
go func() {
delErr <- operations.DeleteFiles(ctx, toBeDeleted)
}()
err := f.list("", true, func(entry fs.DirEntry) error {
err := f.list(f.rootContainer, f.rootDirectory, f.rootDirectory, f.rootContainer == "", true, func(entry fs.DirEntry) error {
if o, ok := entry.(*Object); ok {
toBeDeleted <- o
}
@ -834,6 +848,7 @@ func (f *Fs) Purge(ctx context.Context) error {
//
// If it isn't possible then return fs.ErrorCantCopy
func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object, error) {
dstContainer, dstPath := f.split(remote)
err := f.Mkdir(ctx, "")
if err != nil {
return nil, err
@ -843,10 +858,10 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
fs.Debugf(src, "Can't copy - not same remote type")
return nil, fs.ErrorCantCopy
}
srcFs := srcObj.fs
srcContainer, srcPath := srcObj.split()
err = f.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
rxHeaders, err = f.c.ObjectCopy(srcFs.container, srcFs.root+srcObj.remote, f.container, f.root+remote, nil)
rxHeaders, err = f.c.ObjectCopy(srcContainer, srcPath, dstContainer, dstPath, nil)
return shouldRetryHeaders(rxHeaders, err)
})
if err != nil {
@ -955,8 +970,9 @@ func (o *Object) readMetaData() (err error) {
}
var info swift.Object
var h swift.Headers
container, containerPath := o.split()
err = o.fs.pacer.Call(func() (bool, error) {
info, h, err = o.fs.c.Object(o.fs.container, o.fs.root+o.remote)
info, h, err = o.fs.c.Object(container, containerPath)
return shouldRetryHeaders(h, err)
})
if err != nil {
@ -1013,8 +1029,9 @@ func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
newHeaders[k] = v
}
}
container, containerPath := o.split()
return o.fs.pacer.Call(func() (bool, error) {
err = o.fs.c.ObjectUpdate(o.fs.container, o.fs.root+o.remote, newHeaders)
err = o.fs.c.ObjectUpdate(container, containerPath, newHeaders)
return shouldRetry(err)
})
}
@ -1032,9 +1049,10 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
fs.FixRangeOption(options, o.size)
headers := fs.OpenOptionHeaders(options)
_, isRanging := headers["Range"]
container, containerPath := o.split()
err = o.fs.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
in, rxHeaders, err = o.fs.c.ObjectOpen(o.fs.container, o.fs.root+o.remote, !isRanging, headers)
in, rxHeaders, err = o.fs.c.ObjectOpen(container, containerPath, !isRanging, headers)
return shouldRetryHeaders(rxHeaders, err)
})
return
@ -1052,20 +1070,20 @@ func min(x, y int64) int64 {
//
// if except is passed in then segments with that prefix won't be deleted
func (o *Object) removeSegments(except string) error {
segmentsRoot := o.fs.root + o.remote + "/"
err := o.fs.listContainerRoot(o.fs.segmentsContainer, segmentsRoot, "", true, func(remote string, object *swift.Object, isDirectory bool) error {
container, containerPath := o.split()
segmentsContainer := container + "_segments"
err := o.fs.listContainerRoot(segmentsContainer, containerPath, "", false, true, func(remote string, object *swift.Object, isDirectory bool) error {
if isDirectory {
return nil
}
if except != "" && strings.HasPrefix(remote, except) {
// fs.Debugf(o, "Ignoring current segment file %q in container %q", segmentsRoot+remote, o.fs.segmentsContainer)
// fs.Debugf(o, "Ignoring current segment file %q in container %q", segmentsRoot+remote, segmentsContainer)
return nil
}
segmentPath := segmentsRoot + remote
fs.Debugf(o, "Removing segment file %q in container %q", segmentPath, o.fs.segmentsContainer)
fs.Debugf(o, "Removing segment file %q in container %q", remote, segmentsContainer)
var err error
return o.fs.pacer.Call(func() (bool, error) {
err = o.fs.c.ObjectDelete(o.fs.segmentsContainer, segmentPath)
err = o.fs.c.ObjectDelete(segmentsContainer, remote)
return shouldRetry(err)
})
})
@ -1074,11 +1092,11 @@ func (o *Object) removeSegments(except string) error {
}
// remove the segments container if empty, ignore errors
err = o.fs.pacer.Call(func() (bool, error) {
err = o.fs.c.ContainerDelete(o.fs.segmentsContainer)
err = o.fs.c.ContainerDelete(segmentsContainer)
return shouldRetry(err)
})
if err == nil {
fs.Debugf(o, "Removed empty container %q", o.fs.segmentsContainer)
fs.Debugf(o, "Removed empty container %q", segmentsContainer)
}
return nil
}
@ -1103,11 +1121,13 @@ func urlEncode(str string) string {
// updateChunks updates the existing object using chunks to a separate
// container. It returns a string which prefixes current segments.
func (o *Object) updateChunks(in0 io.Reader, headers swift.Headers, size int64, contentType string) (string, error) {
container, containerPath := o.split()
segmentsContainer := container + "_segments"
// Create the segmentsContainer if it doesn't exist
var err error
err = o.fs.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
_, rxHeaders, err = o.fs.c.Container(o.fs.segmentsContainer)
_, rxHeaders, err = o.fs.c.Container(segmentsContainer)
return shouldRetryHeaders(rxHeaders, err)
})
if err == swift.ContainerNotFound {
@ -1116,7 +1136,7 @@ func (o *Object) updateChunks(in0 io.Reader, headers swift.Headers, size int64,
headers["X-Storage-Policy"] = o.fs.opt.StoragePolicy
}
err = o.fs.pacer.Call(func() (bool, error) {
err = o.fs.c.ContainerCreate(o.fs.segmentsContainer, headers)
err = o.fs.c.ContainerCreate(segmentsContainer, headers)
return shouldRetry(err)
})
}
@ -1127,7 +1147,7 @@ func (o *Object) updateChunks(in0 io.Reader, headers swift.Headers, size int64,
left := size
i := 0
uniquePrefix := fmt.Sprintf("%s/%d", swift.TimeToFloatString(time.Now()), size)
segmentsPath := fmt.Sprintf("%s%s/%s", o.fs.root, o.remote, uniquePrefix)
segmentsPath := path.Join(containerPath, uniquePrefix)
in := bufio.NewReader(in0)
segmentInfos := make([]string, 0, ((size / int64(o.fs.opt.ChunkSize)) + 1))
for {
@ -1136,7 +1156,7 @@ func (o *Object) updateChunks(in0 io.Reader, headers swift.Headers, size int64,
if left > 0 {
return "", err // read less than expected
}
fs.Debugf(o, "Uploading segments into %q seems done (%v)", o.fs.segmentsContainer, err)
fs.Debugf(o, "Uploading segments into %q seems done (%v)", segmentsContainer, err)
break
}
n := int64(o.fs.opt.ChunkSize)
@ -1147,46 +1167,45 @@ func (o *Object) updateChunks(in0 io.Reader, headers swift.Headers, size int64,
}
segmentReader := io.LimitReader(in, n)
segmentPath := fmt.Sprintf("%s/%08d", segmentsPath, i)
fs.Debugf(o, "Uploading segment file %q into %q", segmentPath, o.fs.segmentsContainer)
fs.Debugf(o, "Uploading segment file %q into %q", segmentPath, segmentsContainer)
err = o.fs.pacer.CallNoRetry(func() (bool, error) {
var rxHeaders swift.Headers
rxHeaders, err = o.fs.c.ObjectPut(o.fs.segmentsContainer, segmentPath, segmentReader, true, "", "", headers)
rxHeaders, err = o.fs.c.ObjectPut(segmentsContainer, segmentPath, segmentReader, true, "", "", headers)
if err == nil {
segmentInfos = append(segmentInfos, segmentPath)
}
return shouldRetryHeaders(rxHeaders, err)
})
if err != nil {
deleteChunks(o, segmentInfos)
deleteChunks(o, segmentsContainer, segmentInfos)
segmentInfos = nil
return "", err
}
i++
}
// Upload the manifest
headers["X-Object-Manifest"] = urlEncode(fmt.Sprintf("%s/%s", o.fs.segmentsContainer, segmentsPath))
headers["X-Object-Manifest"] = urlEncode(fmt.Sprintf("%s/%s", segmentsContainer, segmentsPath))
headers["Content-Length"] = "0" // set Content-Length as we know it
emptyReader := bytes.NewReader(nil)
manifestName := o.fs.root + o.remote
err = o.fs.pacer.Call(func() (bool, error) {
var rxHeaders swift.Headers
rxHeaders, err = o.fs.c.ObjectPut(o.fs.container, manifestName, emptyReader, true, "", contentType, headers)
rxHeaders, err = o.fs.c.ObjectPut(container, containerPath, emptyReader, true, "", contentType, headers)
return shouldRetryHeaders(rxHeaders, err)
})
if err != nil {
deleteChunks(o, segmentInfos)
deleteChunks(o, segmentsContainer, segmentInfos)
segmentInfos = nil
}
return uniquePrefix + "/", err
}
func deleteChunks(o *Object, segmentInfos []string) {
func deleteChunks(o *Object, segmentsContainer string, segmentInfos []string) {
if segmentInfos != nil && len(segmentInfos) > 0 {
for _, v := range segmentInfos {
fs.Debugf(o, "Delete segment file %q on %q", v, o.fs.segmentsContainer)
e := o.fs.c.ObjectDelete(o.fs.segmentsContainer, v)
fs.Debugf(o, "Delete segment file %q on %q", v, segmentsContainer)
e := o.fs.c.ObjectDelete(segmentsContainer, v)
if e != nil {
fs.Errorf(o, "Error occured in delete segment file %q on %q , error: %q", v, o.fs.segmentsContainer, e)
fs.Errorf(o, "Error occured in delete segment file %q on %q , error: %q", v, segmentsContainer, e)
}
}
}
@ -1196,8 +1215,9 @@ func deleteChunks(o *Object, segmentInfos []string) {
//
// The new object may have been created if an error is returned
func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
if o.fs.container == "" {
return fserrors.FatalError(errors.New("container name needed in remote"))
container, containerPath := o.split()
if container == "" {
return fserrors.FatalError(errors.New("can't upload files to the root"))
}
err := o.fs.Mkdir(ctx, "")
if err != nil {
@ -1235,7 +1255,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
}
var rxHeaders swift.Headers
err = o.fs.pacer.CallNoRetry(func() (bool, error) {
rxHeaders, err = o.fs.c.ObjectPut(o.fs.container, o.fs.root+o.remote, in, true, "", contentType, headers)
rxHeaders, err = o.fs.c.ObjectPut(container, containerPath, in, true, "", contentType, headers)
return shouldRetryHeaders(rxHeaders, err)
})
if err != nil {
@ -1268,13 +1288,14 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
// Remove an object
func (o *Object) Remove(ctx context.Context) error {
container, containerPath := o.split()
isDynamicLargeObject, err := o.isDynamicLargeObject()
if err != nil {
return err
}
// Remove file/manifest first
err = o.fs.pacer.Call(func() (bool, error) {
err = o.fs.c.ObjectDelete(o.fs.container, o.fs.root+o.remote)
err = o.fs.c.ObjectDelete(container, containerPath)
return shouldRetry(err)
})
if err != nil {