Re: Merge-tracking question: what happens with cross-branch commits?

On Thu, 03 Aug 2006, Malcolm Rowe wrote:

> On Thu, Aug 03, 2006 at 10:25:55AM -0700, dlr@tigris.org wrote:
> > New Revision: 20951
> >
> > Modified:
> > branches/1.4.x/subversion/include/svn_wc.h
> > trunk/subversion/include/svn_wc.h
> >
>
> So I guess I'm curious - what should a merge tracking solution do with
> something like that, in general?

This was a manual change and commit made to both branches (e.g. no
merge), so we wouldn't be modifying any merge history here.

> What do svnmerge and the current merge-tracking branch do?

If the changes had been brought about by a merge into the WC, the
current merge-tracking branch would've added to the merge history for
both svn_wc.h paths during the merge, and persisted that to the repos
upon commit.

If this had been a merge, and all tags and branches our repository
contained a similar merge (highly improbable, in this case), the merge
info would be "elided" into the repository root ("/").

svnmerge.py allows for tracking merge info only at a tree/branch root,
meaning that merges for which you want to retain merge history must be
whole branch (tree) merges (sub-tree merges aren't supported).

Clear as mud, right? :-)