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swift: fix update multipart object removing all of its own parts 

After uploading a multipart object, rclone deletes any unused parts.

Probably as part of the listing unification, the detection of the
parts beloning to the current upload was failing and calling Update
was deleting the parts for the current object.

This change fixes the detection and deletes all the old parts but none
of the new ones now.

Fixes #4075
This commit is contained in:
Nick Craig-Wood 2020-08-03 14:45:03 +01:00
parent f50ab981f7
commit 324077fb48
1 changed files with 8 additions and 3 deletions
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11
backend/swift/swift.go
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@ -1115,13 +1115,18 @@ 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 {
segmentsContainer, prefix, err := o.getSegmentsDlo()
err = o.fs.listContainerRoot(segmentsContainer, prefix, "", false, true, true, func(remote string, object *swift.Object, isDirectory bool) error {
segmentsContainer, _, err := o.getSegmentsDlo()
if err != nil {
return err
}
except = path.Join(o.remote, except)
// fs.Debugf(o, "segmentsContainer %q prefix %q", segmentsContainer, prefix)
err = o.fs.listContainerRoot(segmentsContainer, o.remote, "", false, true, 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, segmentsContainer)
// fs.Debugf(o, "Ignoring current segment file %q in container %q", remote, segmentsContainer)
return nil
}
fs.Debugf(o, "Removing segment file %q in container %q", remote, segmentsContainer)