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Re: AW: How to find out the rev number where a file was deleted?

From: Daniel Shahaf <d.s_at_daniel.shahaf.name>
Date: Sun, 28 Nov 2010 13:27:28 +0200

[ sorry if I'm repeating; haven't read the whole thread ]

Johan Corveleyn wrote on Sun, Nov 28, 2010 at 10:05:15 +0100:
> FWIW, you do have a point, Andrey (and others), that this is a valid
> use case (finding the rev in which a file was deleted) which isn't
> well supported by svn currently. I think the svn devs are very much
> aware of this, but it just isn't there yet. See also this issue:
>
> http://subversion.tigris.org/issues/show_bug.cgi?id=3627 - FS API
> support for oldest-to-youngest history traversal
>
> It literally mentions this use case as one of the "high-level user needs":
> " - allowing 'svn log' to fully traverse the entire history of a
> given versioned
> object, both for completeness' sake and to facilitate (for example) resurrection
> of deleted items from their most-recently-existing forms."
>
> Unfortunately, according to the current plans, it might be a while
> before this is implemented. On the roadmap, it is listed as being
> dependent on FS-NG ("Flexible Repository Storage"), on the list of
> "most wanted features":
> http://subversion.apache.org/roadmap.html#features-most-wanted.

Just to clarify, this doesn't mean we don't like this feature; it means
a non-trivial bit of work is needed to implement it, because this
question is not easily answerable given the current state/design of
the backends.

There are two related questions here:

* Given PATH_at_rN which exists, what is the largest rM such that
  PATH_at_rI and PATH_at_rN are the same node (no adds/replaces/deletes
  have occured in or above PATH) for all N≤I≤M?

* What are all the (path,revision) objects that are the same line of
  history as a given PATH_at_rN? In other words, what are all the places
  PATH_at_rN has been copied to, and all the revisions where those copies
  were touched?
Received on 2010-11-28 12:29:18 CET

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