Peter N. Lundblad wrote:
> On Sat, 18 Jun 2005, Martin Hauner wrote:
> > Ben Collins-Sussman wrote:
> > >
> > > IIUC, 'svn merge' is now doing exactly this in svn 1.2.
> > > [..]
> > > So in svn 1.2, cmpilato changed 'svn merge' to request one of our old-
> > > fashioned tree-delta reports, one which we used to call a "skelta".
> > > It's a tree-delta without any text-deltas, just a description of
> > > files need to be fetched. 'svn merge' now quickly sucks the whole
> > > skelta into a tmpfile, then parses the skelta slowly, doing
> > > svn_ra_get_file()'s as needed.
> > >
> > > So it sounds like we don't need a new RA function here at all, do we?
> > > 'svn merge' is already doing this very thing, so it must be already
> > > possible.
> > Yes, it can be done without a new ra function.
> > I created a new api function svn_client_diff_preview with a callback
> > function svn_diff_preview_func_t. It uses a simple svn_delta_editor_t
> > implementation as input to svn_ra_do_diff. So no new ra function.
> But, as Philip implicitly points out, that will send you text deltas
> (which you ignore, I guess). To be more efficient, you need a revised (see
> HACKING) version of svn_ra_do_diff, with a parameter indicating whether to
> send text deltas or not. We already have that functionality for
> svn_ra_do_status, so I think it should be pretty straight-forward to
Oh, I see. So from scanning a bit through the source the big picture is:
- add a new svn_ra_do_diff2 method with an additional parameter
- add the new boolean parameter to do_diff in svn_ra__vtable_t
- and finally pass the new parameter to svn_repos_begin_report in the
different repository access libs.
I guess there is some more stuff to do between the last two steps.
Is this basically the correct direction?
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Received on Mon Jun 20 16:28:31 2005