[SVNMERGE][PATCH] handle -r X-Y, where X > Y

[Giovanni Bajo]

Raman Gupta wrote:

> I'd rather that you "imply" a rollback command when the user specified
> Y-X, since that would be consistent with the behavior of svn merge.

The problem with this kind of implicit assumption is that it's not clear
anymore what to do with "svnmerge merge -r100-80,10". Or worse, with
"svnmerge merge -r80-100,200-180".

I would like to note that svnmerge.py uses --revisions just like the
newly-added -c option of svn diff/merge. In other words, it identifies a
changeset, more than a revision. This is why the correct spelling is
"svnmerge.py merge -r123", while with svn you need to say "svnmerge.py
merge -r122:123". This contributes to the current confusion.

Sooner or later, we ought to rename "-r/--revision" to "-c/--changeset".
After that, and after we gain the svnmerge rollback command, I think we
could rediscuss the issue. Until then, I'm still +1 on a patch which *errors
out* when specifying reversed ranges so to totally avoid any kind of
confusion.
-- 
Giovanni Bajo