Rollback ate my commit message! (issue 1635)

[Mark Williamson]

On Wednesday 18 November 2009 18:30:28 Greg Ward wrote:
<snipped some stuff>
> So I am proposing to fix it in a way that benefits all Mercurial users
> all of the time.  Cost: 3 lines of code and a little extra I/O for
> each commit.  If you really don't think it's worth it, then I'll just
> do it early in our pretxncommit hook.  It will stop annoying me, and
> will continue to annoy the invisible people who don't complain.
> (Possibly an empty set, but I doubt it.)

Not an empty set, since it contains me.  I've always regarded my losing a 
commit message because of using rollback as being my own fault but I'd welcome 
a mechanism that provided a cheap and simple means of saving me from myself.

If I had to define hooks or install an extension to do this then I'd probably 
never get round to it.  But if there was a quick-n-dirty helper that didn't 
introduce performance or maintenance concerns it would repeatedly save me 
minor instances of frustration.

Cheers,
Mark

> 
> As for "a) your commit edit helper", do you mean a mythical shell
> script run by hg that in turn runs my $EDITOR?  But I don't have one,
> and don't want to need one.  I've never needed one with CVS or
> Subversion, so why should I need one for Mercurial?  Oh yeah...
> because rollback ate my commit message, and that doesn't happen with
> CVS or Subversion -- even when a server-side commit hook rejects my
> commit.
> 
> Greg
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