From: Christian Couder <christian.couder@gmail.com>
Date: Thu, 04 Mar 2021 09:52:55 GMT
Subject: Re: Can I convince the diff algorithm to behave better?
Message-ID: <CAP8UFD1gFA2DyyjyfJ7pKNRyqO2=Y2BOyF0Aeni3GXvgeL8Wtg@mail.gmail.com>
In-Reply-To: <CA+cU71=FfReSG411Feo=vmkw4MdK4KDgokP1jH6uwOkC_0AbYA@mail.gmail.com>

On Thu, Mar 4, 2021 at 8:37 AM Tom Ritter <tom@ritter.vg> wrote:

[...]

> Obviously there's nothing incorrect about the former diff, I just wish
> it was the latter rather than the former.
>
> I know that git includes four diff algorithms; in my testing patience
> or histogram exacerbated the problem; and none of them improved upon
> it.  If anyone has suggestions I'd be curious to know if there's
> anything that could be done...

It's not so easy to implement good diff algorithms. You might want to
take a look at the "v2.11 new diff heuristic?" article in:

https://git.github.io/rev_news/2016/12/14/edition-22/

Best,
Christian.