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dropbox: make setting mod time on existing files work properly
This is a fix left over from the v2 conversion. Dropbox ignores the client modification on an incoming file if it was identical to the existing file. This change deletes the existing file first before re-uploading the new one.
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740b3f6ae2
commit
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@ -125,7 +125,7 @@ func (f *File) applyPendingModTime() error {
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switch err {
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case nil:
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fs.Debugf(f.o, "File.applyPendingModTime OK")
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case fs.ErrorCantSetModTime:
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case fs.ErrorCantSetModTime, fs.ErrorCantSetModTimeWithoutDelete:
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// do nothing, in order to not break "touch somefile" if it exists already
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default:
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fs.Errorf(f.o, "File.applyPendingModTime error: %v", err)
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@ -810,9 +810,9 @@ func (o *Object) ModTime() time.Time {
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// Commits the datastore
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func (o *Object) SetModTime(modTime time.Time) error {
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// Dropbox doesn't have a way of doing this so returning this
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// error will cause the file to be re-uploaded to set the
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// time.
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return fs.ErrorCantSetModTime
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// error will cause the file to be deleted first then
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// re-uploaded to set the time.
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return fs.ErrorCantSetModTimeWithoutDelete
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}
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// Storable returns whether this object is storable
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33
fs/fs.go
33
fs/fs.go
@ -29,22 +29,23 @@ var (
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// Filesystem registry
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fsRegistry []*RegInfo
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// ErrorNotFoundInConfigFile is returned by NewFs if not found in config file
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ErrorNotFoundInConfigFile = errors.New("didn't find section in config file")
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ErrorCantPurge = errors.New("can't purge directory")
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ErrorCantCopy = errors.New("can't copy object - incompatible remotes")
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ErrorCantMove = errors.New("can't move object - incompatible remotes")
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ErrorCantDirMove = errors.New("can't move directory - incompatible remotes")
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ErrorDirExists = errors.New("can't copy directory - destination already exists")
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ErrorCantSetModTime = errors.New("can't set modified time")
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ErrorDirNotFound = errors.New("directory not found")
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ErrorObjectNotFound = errors.New("object not found")
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ErrorLevelNotSupported = errors.New("level value not supported")
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ErrorListAborted = errors.New("list aborted")
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ErrorListOnlyRoot = errors.New("can only list from root")
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ErrorIsFile = errors.New("is a file not a directory")
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ErrorNotAFile = errors.New("is a not a regular file")
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ErrorNotDeleting = errors.New("not deleting files as there were IO errors")
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ErrorCantMoveOverlapping = errors.New("can't move files on overlapping remotes")
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ErrorNotFoundInConfigFile = errors.New("didn't find section in config file")
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ErrorCantPurge = errors.New("can't purge directory")
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ErrorCantCopy = errors.New("can't copy object - incompatible remotes")
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ErrorCantMove = errors.New("can't move object - incompatible remotes")
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ErrorCantDirMove = errors.New("can't move directory - incompatible remotes")
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ErrorDirExists = errors.New("can't copy directory - destination already exists")
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ErrorCantSetModTime = errors.New("can't set modified time")
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ErrorCantSetModTimeWithoutDelete = errors.New("can't set modified time without deleting existing object")
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ErrorDirNotFound = errors.New("directory not found")
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ErrorObjectNotFound = errors.New("object not found")
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ErrorLevelNotSupported = errors.New("level value not supported")
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ErrorListAborted = errors.New("list aborted")
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ErrorListOnlyRoot = errors.New("can only list from root")
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ErrorIsFile = errors.New("is a file not a directory")
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ErrorNotAFile = errors.New("is a not a regular file")
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ErrorNotDeleting = errors.New("not deleting files as there were IO errors")
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ErrorCantMoveOverlapping = errors.New("can't move files on overlapping remotes")
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)
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// RegInfo provides information about a filesystem
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@ -183,7 +183,14 @@ func equal(src, dst Object, sizeOnly, checkSum bool) bool {
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// mtime of the dst object here
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err := dst.SetModTime(srcModTime)
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if err == ErrorCantSetModTime {
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Debugf(src, "src and dst identical but can't set mod time without re-uploading")
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Debugf(dst, "src and dst identical but can't set mod time without re-uploading")
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return false
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} else if err == ErrorCantSetModTimeWithoutDelete {
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Debugf(dst, "src and dst identical but can't set mod time without deleting and re-uploading")
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err = dst.Remove()
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if err != nil {
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Errorf(dst, "failed to delete before re-upload: %v", err)
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}
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return false
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} else if err != nil {
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Stats.Error()
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@ -672,7 +672,7 @@ func TestObjectSetModTime(t *testing.T) {
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newModTime := fstest.Time("2011-12-13T14:15:16.999999999Z")
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obj := findObject(t, file1.Path)
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err := obj.SetModTime(newModTime)
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if err == fs.ErrorCantSetModTime {
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if err == fs.ErrorCantSetModTime || err == fs.ErrorCantSetModTimeWithoutDelete {
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t.Log(err)
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return
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}
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