FR: support three folders diffing

[trosh]

The use case would be integration with Jujutsu's 3-pane diff editing, passing arguments $left $output $right. Since Vim's diff mode should be compatible with n≥2 files, maybe we can make the code generic? (Even though I don't believe n>3 would ever be desirable.)

[balki]

It would be a nice feature addition. I prefer to keep n==2 or n==3 and not make it generic. Let me know if you plan to implement. If not, I will start on in next few weeks.

[trosh]

Thanks for the feedback, duly noted. I'll try before end of next week, will comment once I start

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On Wed, 8 Oct 2025, 17:56 Balki, ***@***.***> wrote: *balki* left a comment (balki/vimtabdiff#10) <#10 (comment)> It would be a nice feature addition. I prefer to keep n==2 or n==3 and not make it generic. Let me know if you plan to implement. If not, I will start on in next few weeks. — Reply to this email directly, view it on GitHub <#10 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA3THPGE5WQTZBYJOUHSX5D3WUX4LAVCNFSM6AAAAACIQ72FGSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTGOBSGIZDMNJRGY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[trosh]

Well, it wasn't too long to implement using your itertools approach, so there you go. (TBH, I find the approach a bit weird, but since it was pretty easy to extend the proof appears to be in the pudding.)

In the end, diffing 3 folders miiight be useful but IMO Vim diff commands for 3+ panes become unusable with multiple tabs.