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devel / comp.lang.scheme / Re: What would be a suitable git diff hunk header for Scheme?

Re: What would be a suitable git diff hunk header for Scheme?

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Date: Thu, 1 Jul 2021 04:52:30 -0700 (PDT)
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Subject: Re: What would be a suitable git diff hunk header for Scheme?
From: raykar....@gmail.com (Atharva Raykar)
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by: Atharva Raykar - Thu, 1 Jul 2021 11:52 UTC

As of Git v2.32.0, adding diff=scheme in a .gitattributes file will make Git be smarter with the diff output for Scheme (with all of its variants) code. You can get function context around diff hunks, along with better word-diff output that is aware of Scheme keywords.

Thanks to Göran Weinholt for giving feedback on this feature before it was merged.

On Sunday, March 28, 2021 at 8:13:27 PM UTC+5:30, Atharva Raykar wrote:
> Hi Schemers,
>
> If you have used git, you would have noticed the diff hunks have
> this format:
>
> @@ -k,l +n,m @@ TEXT ---> this is the hunk header
> + something added
> - something removed
> ...
>
> With most other languages, git provides built-in diff drivers,
> so if you used the diff driver for python you would get the
> enclosing function or class name in the location of TEXT
> above. Similarly other language drivers have important forms
> shown alongside the hunk header to make the give the diff a
> useful landmark.
>
> I have been working on a patch to introduce a driver for scheme[1]
> as well, but I needed some opinions from more seasoned schemers.
>
> For now I am only taking the following forms for the hunk headers:
>
> - `define`
> - `define-syntax`
> - `define-*` (any other define form that may have been introduced via macro)
>
> Is there any other form that would make a useful landmark for hunk headers
> that I should include, that will work well across most Scheme implementations?
>
> Regards
> Atharva
>
> [1] https://public-inbox.org/git/3def82fd-71a7-3ad9...@kdbg.org/T/#m85a1cbe58b1494d0dc43601bae446563b791fa9e

Subject	Author
Re: What would be a suitable git diff hunk header for Scheme?	Atharva Raykar