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Re: Issue #1093 APIs Change

From: C. Michael Pilato <cmpilato_at_collab.net>
Date: 2003-11-03 16:07:16 CET

Greg Hudson <ghudson@MIT.EDU> writes:

> On Sat, 2003-11-01 at 15:07, Shlomi Fish wrote:
> > I favour option #2 for the time being and ghudson backed me up. Two very
> > prominent figures whom we talked with on #svn, were not fond of the idea,
> > though. What do you think?
> I think people would have an easier time commenting if they had a better
> idea of what you're proposing, so I'll try to elaborate.
> I think what we fundamentally need (for diff and for other operations if
> they are changed to allow peg-revisions) is a function which maps <rev,
> path, historical-rev> -> <rev,path>, using the FS history API. For
> instance, in our repository, it would map
> <7534, "/trunk/subversion/libsvn_ra_svn/editorp.c", 6000>
> to
> <5609, "/trunk/subversion/libsvn_ra_svn/editor.c">
> You can currently do this sort of mapping using svn log, but it's a big
> waste.

Shlomi, for your record-keeping, vote-tracking purposes, this is the
same API that Sander and I have been recommending. So, to further
clarify your options #1 and #2, this lookup will always have to
happen. The only question is whether it

   (1) Each subcommand, given [PATH, PEG, [RANGE-X, RANGE-Y]], calls
       to a new RA interface to resolve [PATH, PEG, [RANGE-X, RANGE-Y]]
       to [[REALPATH1, RANGE-X], [REALPATH2, RANGE-Y]]. Then, back on
       the client side, the subcommand uses this "real path"
       information for its main operation.

   (2) Each subcommand passes [PATH, PEG, [RANGE-X, RANGE-Y]] as
       parameters for its main operation to the server, which performs
       the mapping described above before actually responding to the
       client with the results (which are now based on the mapped

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Received on Mon Nov 3 16:08:33 2003

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