Re: undeletion at filesystem level or in extra filesystem?

[Niels Möller]

Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de> writes:

> I wonder, should undeletion (aka the Windows trash can) better be done at a
> per-filesystem level (like, in diskfs), or with an extra-filesystem that is
> stacked (like shadowfs)?

I think I'd rather have a versioning filesystem (what emacs emulates
if you set version-control to t, I've seen the real thing on the Xerox
lisp machines in the CS lab ten years ago) than a "trashcan".

And if you do a trashcan, it seems like nicer to have a DELETED bit in
the node than moving files around to magic directories.

I guess one could have a generic versioning-by-renaming thing in
diskfs.

I also think the file update semantics could be improved, but perhaps
we'd get to far off topic.

/Niels