Re: feature proposal diff-mode: kill various hunks or mark then and invert the mark

[Dmitry Gutov]

On 16.08.2022 17:41, Uwe Brauer wrote:
> Hi
>
> When using diff mode, I sometimes have say 10 hunks but only want to
> select one[1] and ignore the other. In the current implementation I have
> to kill all 9 I don't want, and that is a bit cumbersome.
>
> If I could select them all, un-select one and then kill the marked one,
> that would be great.

Note that the difficulty depends on how complex you want the behavior to 
be. If it's always to keep one or several adjacent hunks - it's one 
thing. To be able to mark multiple disjoint hunks, however, that would 
require a different marking UI.

> Footnotes:
> [1]  the reason is that I use  commit-patch-buffer.el, that allows me to
>       commit via the external commit-patch command only certains hunks of
>       a diff buffer (hg commit -i is not supported by magit or vc-hg.el)

JFYI, Juri just pushed an implementation of this for the Git VC backend 
to master (a commit-patch replacement).

Hopefully someone will add Hg support as well, but the implementation 
seems less trivial, given that it doesn't have staging area.