[FEATURE REQUEST] idiff "directory mode"

[lgritz]

On Unix/etc command line, the "diff" utility lets you say

diff path/to/file1.txt anotherpath/toanother/file2.txt

but also if you

diff path/to/file1.txt pathto/dir

where pathto/dir is the name of a directory, this is shorthand for

diff path/to/file1.txt pathto/dir/file1.txt

That is, you can just specify a directory as the second argument, and it knows that you mean to diff against a file of the same filename, in that other directory.

I would like our idiff utility to work the same way. You currently have to give both full paths, but many times I've wished you could give just a directory for the second name, and it would know what you meant and behave like diff users expect.

[davvid]

Hi Larry, I'd like to add this feature. Feel free to assign this to me. I actually already have this working locally but I might wait until the 12th before submitting the PR to help batch things up.

[lgritz]

I think you're the second person to say the same thing. But he seems to have deleted his comment here, so you're the winner.

[CheeksTheGeek]

Hi Davvid, it was me who deleted the comment, lol. I got all of it working, but was under the confusion that we weren't supposed to work on it before DevDays.
I'll pick up something else, so best of luck for DevDays 2023!

[davvid]

Thanks @CheeksTheGeek I'll loop you into the code review when I submit my update on Thursday so we can have two pairs of eyes on the changes.

Our code is somewhat similar, but also slightly different so we can chat about the differences once it's posted.

[CheeksTheGeek]

Okayy!

[davvid]

@CheeksTheGeek I opened #4015 with these updates. I know you closed it but I'll share code review notes on your commit above shortly for educational purposes.