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Re: fsfs revprop packing in f5 Re: Does fsfs revprop packing no longer allow usage of traditional backup software?

From: Peter Samuelson <peter_at_p12n.org>
Date: Thu, 7 Jul 2011 10:42:50 -0500

[C. Michael Pilato]
> Boo! Layer knowledge violation. Ignoring, oh, the tiny percentage
> of Subversion code that does something special with r0 props, why
> would we special-case this?

It's special because we do ship svnsync officially. (:
It's special because r0 never has anything in it _except_ revprops.
It's special because it does not get svn:author or svn:log by default
like every other revision does.

r0 revprops _are_ a natural place to store metadata about the
repository as a whole that one does not want to store in the repo
filesystem itself. I hardly think svnsync is the only tool that uses
it that way. Just as I proposed handling HEAD revprops in a special
way to accommodate post-commit hooks that immediately edit their own
revision's revprops (the mechanics of this as relates to the
implementation of packing is beyond the scope of this message),
special-casing the other endpoint, r0, is no less strange.

-- 
Peter Samuelson | org-tld!p12n!peter | http://p12n.org/
Received on 2011-07-07 17:43:35 CEST

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