Tramp and recursive file operations

[Michael Albinus]

Hi,

recursive copy or deletion of files can last a long time, because all
operations are performed file by file. This could be much faster, if
Tramp would be allowed to apply such operations in one step, for a whole
directory. Think about "scp" or "rsync".

Therefore, I propose to add a file name handler to `dired-copy-file-recursive'.

Recursive file deletion happens via `dired-delete-file'. Here I propose
to add a new function `dired-delete-file-recursive', which takes over
the recursive part of `dired-delete-file', and which calls also a file
name handler when appropriate.

I volunteer to implement such handlers in Tramp :-)

What do people think?

Best regards, Michael.