Re: backup-each-save.el v1.1

[Benjamin Rutt]

Kin Cho <address@hidden> writes:

> I suggest two user specified options to auto purge older
> versions:
>
> A) purge by number of versions
> B) purge by age of versions

Because of the user-specified timestamping in the current version, I'd
have no idea how to manage the backup mirror tree, where filenames
could be named arbitrarily.

I suppose one way to fix this is to specify the suffix that is
appended to the filename (taking away power to do user-specified
filename timestamping), using some kind of ~1~, ~2~ type counter like
the regular backup files.  However, that will scale O(n) as the # of
backup files increases, since I'll have to look for files with suffix
~1~ .. ~n~ to clean up.

Another approach would be to use some kind of registry/database where
I kept track of which filenames that have been copied.  Is there
anything convenient to use along these lines in emacs?

I welcome discussions of either approach.  Followup set to
gnu.emacs.help.
-- 
Benjamin Rutt