[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: Saying goodbye to `svnadmin deltify' ?

From: <cmpilato_at_collab.net>
Date: 2002-05-30 16:32:21 CEST

Greg Hudson <ghudson@MIT.EDU> writes:

> On Thu, 2002-05-30 at 02:21, cmpilato@collab.net wrote:
> > Actually, I was thinking (watch out), and I realized that my brain was
> > treating `svnadmin deltify' and `svnadmin undeltify' as a pair, like
> > you had to have both, or neither. This is simply bogus. `svnadmin
> > undeltify' is mindless to implement (indeed, should still work today,
> > though `svnadmin deltify' does not) AND is actually useful. That is,
> > right now if I want to be able to dump revision 278 of a copy of the
> > Subversion filesystem, I need to undeltify some revisions after 278 so
> > my deltas for that revision aren't so darned deep. And you know what?
> > I'll never want to re-deltify that, because then I'll be in the same
> > ill state I was in when I started!
>
> Perhaps you'd want to re-deltify it if we ever implement skip-deltas.
> Then you'd save space without having deep deltas.
>
> Or perhaps you'd want to re-deltify it if we ever have a working delta
> combiner. Then having lots of small deltas between here and there
> doesn't hurt so much.
>
> Or both.
>
> I don't know how important it is to have the feature, but your argument
> doesn't seem to hold.

To have the functionality today means I have to invest more time on
these discussions about which hackish or painfully inefficient way to
implement it, and for no real gain (because of the lack of better
deltification). Not to mention that the functionality will likely
have to be rewritten later to make use of whatever deltification
improvements come along in the future.

To re-add this functionality *later* when it will actually be useful
costs nothing today (except a quick edit to comment out the
functionality in svnadmin).

I am *seriously* not trying to get out of doing work here -- if there
was a Good way to accomplish this task today, I'd be all over it. But
there really isn't a good way to do it Right (that I've seen proposed
so far).

I just want someone to tell me that they need `svnadmin deltify'
today, 'cause I have a feeling nobody but me has ever even used it.

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Sat Jun 1 14:35:19 2002

This is an archived mail posted to the Subversion Dev mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.