MQ: break up a 'qrefresh'

[Harvey Chapman]

> On Apr 14, 2015, at 12:10 PM, John W <jwdevel at gmail.com> wrote:
> 
> I know how to do what I want, but before I write an extension for it,
> I figured I'd ask if there's some better and/or built-in way to do it.
> 
> It's a pretty simple situation:
> 
> 1. You have a patch applied (call it P1), and it modifies the file 'foo'.
> 2. You make some updates to 'foo' and run 'qrefresh'. Now P1 is
> modified (call it P1*).
> 3. You decide that actually, those changes should be a separate patch (P2).
> 
> How best to extract those changes to P1 into a new patch, P2?
> 
> In other words: You have P1*, and you want P1, P2
> 
> If the MQ patches have their own repo, this is doable with some
> moderate shenanigans - you need to create one head with P1 and another
> with P1*, do a diff between them, save that diff as P2, etc.
> 
> Is there a more straightforward way to accomplish this in Mercurial?
> it seems like a fairly common occurrence, so I imagined there might be.

"hg qrefresh —interactive” will probably work unless your changes are close together.