[PATCH 2 of 2] transplant: check that changeset was not applied more carefully

[Brendan Cully]

On Tuesday, 24 November 2009 at 11:25, Matt Mackall wrote:
> On Tue, 2009-11-24 at 15:43 +0200, Alexander Solovyov wrote:
> > # HG changeset patch
> > # User Alexander Solovyov <piranha at piranha.org.ua>
> > # Date 1259065963 -7200
> > # Node ID 542903faf1be4c054b196b49c1378eb2f852fb3c
> > # Parent  58f9a9b56889ade2eff4a570851d19824e3766fc
> > transplant: check that changeset was not applied more carefully
> > 
> > Previously, if you have deleted .hg/transplant/transplants file, attempt to
> > transplanting already applied patch will result in merge errors. Patch fixes
> > this problem by regenerating this file is it does not exist.
> > 
> > On almost 10k revisions of Mercurial repository itself this takes around of 1.5
> > seconds, which seems acceptable for a one-time operation.
> 
> Seems reasonable. Brendan?

Looks fine to me. I had thought at some point about trying to share
the tags/branchcache mechanics, but this will do for now.