David Glasser wrote on Sun, 27 Apr 2008 at 23:46 -0700:
> On Sun, Apr 27, 2008 at 10:38 PM, Daniel Shahaf <d.s_at_daniel.shahaf.co.il> wrote:
> > > Perhaps this check might be reasonable if it's actually a check that:
> > >
> > > * dest.HEAD == 0 (already done)
> > > * dest.uuid == src.uuid (your patch)
> > > and
> > > * src.HEAD == 0
> > >
> > > ie, "you're trying to sync from an empty repository to another empty
> > > repository with the same UUID; are you sure you entered two different
> > > repositories?"
> > >
> >
> > Why src.HEAD == 0? Suppose someone has many svnsync'ed same-UUID
> > repositories and creates a new repository. When they create it, they
> > might create and init the mirror at the same time -- hitting this check.
>
> Well, I'm confused. What are you actually trying to prevent with the
> original check?
>
I am trying to prevent syncing an instance of a repository[1] to itself.
Is it possible to tell apart two instances that have the same UUID?
(Equality of UUIDs is a necessary but not sufficient condition for
identity of instances, and equality of URLs is sufficient but not
necessary.)
Daniel
[1] "An instance of", since in DAV mirroring, etc., there are actually
two "instances" of the same repository.
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Received on 2008-04-28 09:25:01 CEST