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drive: Fix creation of duplicates with server side copy - fixes #3067

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This commit is contained in:
Nick Craig-Wood 2019-03-25 17:12:10 +00:00
parent 9f6b09dfaf
commit 1c301f9f7a
1 changed files with 14 additions and 1 deletions
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15
backend/drive/drive.go
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@ -1872,6 +1872,9 @@ func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
remote = remote[:len(remote)-len(ext)] remote = remote[:len(remote)-len(ext)]
} }
// Look to see if there is an existing object
existingObject, _ := f.NewObject(remote)
createInfo, err := f.createFileInfo(remote, src.ModTime()) createInfo, err := f.createFileInfo(remote, src.ModTime())
if err != nil { if err != nil {
return nil, err return nil, err
@ -1889,7 +1892,17 @@ func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
if err != nil { if err != nil {
return nil, err return nil, err
} }
return f.newObjectWithInfo(remote, info) newObject, err := f.newObjectWithInfo(remote, info)
if err != nil {
return nil, err
}
if existingObject != nil {
err = existingObject.Remove()
if err != nil {
fs.Errorf(existingObject, "Failed to remove existing object after copy: %v", err)
}
}
return newObject, nil
} }
// Purge deletes all the files and the container // Purge deletes all the files and the container